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            "file_title" => "Lake Geneva"
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              \n
              \n
              <H2>LAC LEMAN (LAKE OF GENEVA)</H2>\n
              \n
              <b>A view on the lakeshore</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-00.jpg" alt="Photo." width=380 height=260><br>\n
              Photo: Shiga Prefectural Government\n
              <br><br>\n
              \n
              \n
              \n
              </ol>\n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Vaud and Valais, Switzerland; and Haute-Savoie, France.</li>\n
              <LI> 46:12-46:31N, 6:10-6:56E; 372 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>B. DESCRIPTION</H3>\n
              \n
              <OL>\n
              \n
              Lake of Geneva is shared by Switzerland along the northern shore and France\n
              along the southern shore.  Geneva, the city of international politics and\n
              tourism, is located at the west end of this semilunar lake, while the well-\n
              known resort town of Montreux is at the east end.  In-between these cities,\n
              Lausanne, a cultural centre of western Switzerland, is on the northern shore,\n
              and Evian, a town famous for its superior mineral water, is situated in the\n
              middle of the southern shore.  The climate is gentle with mild winters and\n
              comfortable summers, and the surrounding area is particularly known for the\n
              well-managed picturesque scenery and resorts set among this natural splendor.\n
              <BR>\n
              The Rhone River flows southward from the west end of the lake to the\n
              Mediterranean Sea.  The lake is deep and has a comparatively large water\n
              volume for its surface area.  The drainage basin is also fairly wide,\n
              including about a half of the Walliser Alps and the Berner Alps.  Therefore,\n
              nutrient loading from natural sources is more or less equivalent in amount to\n
              that from industrial and domestic waste water.  The dissolved oxygen\n
              concentration in the bottom water as well as the transparency has been\n
              dropping in recent years.  These measurements clearly indicate the progress of\n
              eutrophication in the lake.  At present, approximately 700,000 people get\n
              drinking water from the lake, so that the water quality is under strict legal\n
              control by the cantons surrounding the lake.\n
              \n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS (Q1)</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>584</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>88.9</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>309.7</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>152.7</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>167</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>11.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>7,975</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-07-01.</li>\n
              <LI> Names of main islands: None (1).</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Rhone R.)(Q1).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Geneva, 1931-1960 (2)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Mean temp. [deg C]</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>1.1</TD> <TD>2.2</TD> <TD>6.1</TD> <TD>10.1</TD> <TD>14.1</TD> <TD>17.8</TD> <TD>19.9</TD> <TD>19.1</TD> <TD>15.8</TD> <TD>10.3</TD> <TD>5.7</TD> <TD>2.1</TD> <TD>10.3</TD></TR>\n
              <TR><TD COLSPAN=13>Precipitation [mm]</TD></TR>\n
              <TR ALIGN="center"><TD>63</TD> <TD>56</TD> <TD>55</TD> <TD>51</TD> <TD>67</TD> <TD>89</TD> <TD>64</TD> <TD>94</TD> <TD>99</TD> <TD>72</TD> <TD>83</TD> <TD>59</TD> <TD>852</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine: 2,036 hr yr-1 (2).</li>\n
              <LI> Solar radiation: 11.42 MJ m-2 day-1 (Q1).</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-01.gif" width="376" height="232"></p>\n
              Fig. EUR-07-01<BR>\n
              Bathymetric map (1).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature [deg C](Q1)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>1968-1969</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>S*</TD> <TD>5.9</TD> <TD>5.4</TD> <TD>6.5</TD> <TD>18.9</TD> <TD>13.0</TD> <TD>16.0</TD> <TD>20.4</TD> <TD>19.8</TD> <TD>18.3</TD> <TD>15.7</TD> <TD>11.3</TD> <TD>7.2</TD></TR>\n
              <TR><TD COLSPAN=13>* Surface.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: None (Q1).</li>\n
              <LI> Mixing type: Monomictic.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY: Fig. EUR-07-02.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-02.gif" width="323" height="181"></p>\n
              Fig. EUR-07-02<BR>\n
              Transparency [m] at Grand Lac, main basin (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E4 DO: Fig. EUR-07-03.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-03.gif" width="373" height="211"></p>\n
              Fig. EUR-07-03<BR>\n
              DO [mg l-1] at Grand Lac, 1978 (1).\n
              </OL>\n
              <br>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION: EUR-07-04.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-04.gif" width="349" height="165"></p>\n
              Fig. EUR-07-04<BR>\n
              Chlorophyll a concentration [micro g l-1] in the trophogenic layer, 1976 (1).\n
              </OL>\n
              <br>\n
              \n
              <B>E7 NITROGEN CONCENTRATION: Fig. EUR-07-05.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-05.gif" width="336" height="244"></p>\n
              Fig. EUR-07-05<BR>\n
              Nitrogen concentrations [mg l-1] at Grand Lac, 1982 (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION</B>\n
              \n
              <UL>\n
              <LI> Total-P: Fig. EUR-07-06.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-06.gif" width="336" height="225"></p>\n
              Fig. EUR-07-06<BR>\n
              Time-depth distribution of Total-P [micro g l-1] at Grand Lac, 1978 (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E10 PAST TRENDS (3)</B>\n
              \n
              <UL>\n
              <LI> Chlorophyll a [micro g l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>1976</TH> <TH>1977</TH> <TH>1978</TH> <TH>1979</TH> <TH>1980</TH> <TH>1981</TH> <TH>1982</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>7.3</TD> <TD>4.7</TD> <TD>4.9</TD> <TD>4.8</TD> <TD>4.7</TD> <TD>7.5</TD> <TD>5.2</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-07.gif" width="302" height="192"></p>\n
              Fig. EUR-07-07<BR>\n
              Trend of transparency [m](4).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-08.gif" width="349" height="193"></p>\n
              Fig. EUR-07-08<BR>\n
              Trend of DO [mg l-1] at 300 m depth (4).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-09.gif" width="255" height="242"></p>\n
              Fig. EUR-07-09<BR>\n
              Trend of NH4-N concentration [mg l-1](1).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-10.gif" width="239" height="280"></p>\n
              Fig. EUR-07-10<BR>\n
              Trend of NO3-N concentration [mg l-1](1).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-11.gif" width="261" height="260"></p>\n
              Fig. EUR-07-11<BR>\n
              Trend of Total-P concentration [mg l-1](1).\n
              </OL>\n
              <br>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes (Q1, 5)\n
              <BR>Phragmites communis, Typha latifolia, Schoenoplectus lacustris.</li>\n
              <LI> Floating macrophytes (Q1, 5)\n
              <BR>Potamogeton nodosus, Nymphaea alba, Nuphar luteum, Polygonum amphibium.</li>\n
              <LI> Submerged macrophytes (Q1, 5)\n
              <BR>Potamogeton pectinatus, P. perfoliatus, P. lucens, Zannichellia palustris, Myriophyllum spicatum.</li>\n
              <LI> Phytoplankton (3, 6)\n
              <BR>Asterionella formosa (dominant period in 1982: January-June), Synedra acus (May), Ceratium hirundinella (July and September), Melosira binderana (September), Fragilaria crotonensis (August), Oscillatoria rubescens (October, November and end of December), Aphanizomenon flos-aquae (end of October, Beginning of December).</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton (7)\n
              <BR>Keratella cochlearis, K. quadrata, Notholca caudata, Epistylis lacustris, Synchaeta pectinata, Daphnia longispina.</li>\n
              <LI> Benthos (1)\n
              <BR>Polycelis tenuis, Dugesia tigrina, D. lugubris, Dendrocoelum lacteum, Dreissena polymorpha, Asellus aquaticus.</li>\n
              <LI> Fish: Perca fluviatilis, Coregonus sp., Salmo trutta, Lota lota (Q1).</li>\n
              </UL>\n
              \n
              <B>F3 PRIMARY PRODUCTION RATE: Fig. EUR-07-12.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-12.gif" width="319" height="191"></p>\n
              Fig. EUR-07-12<BR>\n
              Primary production rate in the trophogenic layer, 1976 (1)\n
              </OL>\n
              <br>\n
              \n
              <B>F5 FISHERY PRODUCTS (Q1)</B>\n
              \n
              <UL>\n
              <LI> Annual fish catch [metric tons]\n
              <BR>1982: 347.9.</li>\n
              </UL>\n
              \n
              <B>F6 PAST TRENDS (3)</B>\n
              \n
              <UL>\n
              <LI> Primary production rate [g C m-2 yr-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TH>1976</TH> <TH>1977</TH> <TH>1978</TH> <TH>1979</TH> <TH>1980</TH> <TH>1981</TH> <TH>1982</TH></TR>\n
              <TR ALIGN="center"><TD>223</TD> <TD>174</TD> <TD>157</TD> <TD>170</TD> <TD>205</TD> <TD>231</TD> <TD>230</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>G. SOCIO-ECONOMIC CONDITIONS (Q2)</H3>\n
              \n
              <B>G1 LAND USE IN THE CATCHMENT AREA</B>\n
              \n
              <UL>\n
              <LI> Main types of woody vegetation: Conifer forest.</li>\n
              <LI> Main types of herbaceous vegetation: Meadows and pasture lands.</li>\n
              <LI> Main kinds of crops\n
              <BR>Grape (south slope); maize, beet and potato (Midland area and Rhone Valley); occasionally large orchards and vegetable growing.</li>\n
              </UL>\n
              \n
              \n
              <B>G2 INDUSTRIES IN THE CATCHMENT AREA AND THE LAKE</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TH></TH> <TH>No. of persons engaged(1980)</TH> <TH>Main products or major industries</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Primary industry</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Agriculture</TD> <TD>30,000</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Fisheries</TD> <TD>100</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Secondary industry</TD> <TD> </TD> <TD>Chemicals, metals,machinery, and electrical machinery</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>G3 POPULATION IN THE CATCHMENT AREA</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TD COLSPAN=4>1980</TD></TR>\n
              <TR ALIGN="center"><TD></TD></TR>\n
              <TR><TH></TH> <TH>Population</TH> <TH>Population density [km-2]</TH> <TH>Major cities (population)</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>950,000</TD> <TD>119</TD> <TD>Geneva* (174,000), Lausanne, Montreux</TD></TR>\n
              <TR><TD COLSPAN=4>* Not all the city area is included in the drainage basin.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>H. LAKE UTILIZATION (Q2)</H3>\n
              \n
              <B>H1 LAKE UTILIZATION</B>\n
              <ol>\n
              Source of water, fisheries, navigation, tourism and recreation (swimming,\n
              sport-fishing, yachting).\n
              </ol>\n
              \n
              <B>H2 THE LAKE AS WATER RESOURCE</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR><TD COLSPAN=2>1980</TD></TR>\n
              <TR><TH></TH> <TH>Use rate [m3 sec-1]</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Domestic</TD> <TD>2.38</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Power plant</TD> <TD>N.A.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS (Q2)</H3>\n
              \n
              <B>I3 EUTROPHICATION</B>\n
              \n
              <UL>\n
              <LI> Nuisance caused by eutrophication\n
              <BR>Unusual algal bloom: Oscillatoria rubescens.</li>\n
              <LI> Nitrogen and phosphorus loadings to the lake [t yr-1]\n
              <BR>T-N: 1,300 (1982).  T-P: 1,270 (1980), 1,180 (1981), 1,350 (1982).</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>M. LEGISLATIVE AND INSTITUTIONAL MEASURES FOR UPGRADING LAKE ENVIRONMENTS (Q2)</H3>\n
              \n
              <B>M1 NATIONAL AND LOCAL LAWS CONCERNED</B>\n
              \n
              <UL>\n
              <LI> Names of the laws (the year of legislation)</li>\n
              <OL>\n
              <LI> Federal law on the Protection of Water against Pollution (Water Protection  Law)(1971)</li>\n
              </OL>\n
              <LI> Responsible authorities</li>\n
              <OL>\n
              <LI> Cantonal and Federal authorities</li>\n
              </OL>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI TYPE=A VALUE=17> Questionnaire filled by Dr. Eichenberger, Feldmeiden.</li>\n
              <LI TYPE=A VALUE=17> Questionnaire filled by Office Federal de la Protection de l'Environnement, Bern.</li>\n
              <LI TYPE=1 VALUE=1> Lachavanne, J.-B. (1980)  Les manifestations de l'eutrophisation des eaux dans un grand lac profond, le Leman (Suisse).  Schweiz. Z. Hydrol., 42(2): 127-154.</li>\n
              <LI> Muller, M. J. (1982)  Selected Climatic Data for a Global Set of Standard Stations for Vegetation Science.  306 pp.  Dr. W. Junk Publishers, The Hague.</li>\n
              <LI> Balvay, G., Blanc, P., Burkard, P., Burrus, D., Corvi, C., Druart, J.-C., Giger, W., Monod, R., Pelletier, J., Revaclier, R., Schnydrig, J.-P., Thelin, L., Vernet, J.-P. & Viel, M. (1982)  Rapports, sur les Etudes et Recherches Entreprises dans le Bassin lemanique, Programme quinquennal 1981-1985, Campagne, 1982.  182 pp.  Commission Internationale pour la Protection des Eaux du Leman contre la Pollution, Lausanne.</li>\n
              <LI> Commission Internationale pour la Protection des Eaux du Leman contre la Pollution (1980)  Le leman, on Lac &amp; Proteger!  31 pp.  Lausanne.</li>\n
              <LI> Lachavanne, J.-B. (1977)  Evolution de la flore et de la vegetation aquatiques du Leman.  Coden: Cndlar, 32(1): 121-132.</li>\n
              <LI> Naef, J. &amp; Martin, P. (1983)  Arch. Sc. Geneva, 36(3): 479-500.</li>\n
              <LI> Martin, P. &amp; Naff, J. (1978)  Plancton du lac Leman (caracteristique de l'annee 1977).  Seance, 26 octobre: 98-108.</li>\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              """
            "css" => null
            "more_info" => null
            "created_at" => "2020-04-23 09:03:37"
            "updated_at" => "2020-06-03 16:43:00"
          ]
          #original: array:18 [
            "id" => 3469
            "lake_id" => 93
            "lake_metadata_id" => 1
            "item_id" => 198
            "author" => null
            "original_file_name" => "eur-07.html"
            "system_file_name" => "lake_item_3469.html"
            "file_type" => "6"
            "file_size" => 13164
            "group_name_id" => 6
            "file_title" => "Lake Geneva"
            "search_flag" => 0
            "inner_html" => 2
            "html" => """
              \n
              \n
              <H2>LAC LEMAN (LAKE OF GENEVA)</H2>\n
              \n
              <b>A view on the lakeshore</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-00.jpg" alt="Photo." width=380 height=260><br>\n
              Photo: Shiga Prefectural Government\n
              <br><br>\n
              \n
              \n
              \n
              </ol>\n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Vaud and Valais, Switzerland; and Haute-Savoie, France.</li>\n
              <LI> 46:12-46:31N, 6:10-6:56E; 372 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>B. DESCRIPTION</H3>\n
              \n
              <OL>\n
              \n
              Lake of Geneva is shared by Switzerland along the northern shore and France\n
              along the southern shore.  Geneva, the city of international politics and\n
              tourism, is located at the west end of this semilunar lake, while the well-\n
              known resort town of Montreux is at the east end.  In-between these cities,\n
              Lausanne, a cultural centre of western Switzerland, is on the northern shore,\n
              and Evian, a town famous for its superior mineral water, is situated in the\n
              middle of the southern shore.  The climate is gentle with mild winters and\n
              comfortable summers, and the surrounding area is particularly known for the\n
              well-managed picturesque scenery and resorts set among this natural splendor.\n
              <BR>\n
              The Rhone River flows southward from the west end of the lake to the\n
              Mediterranean Sea.  The lake is deep and has a comparatively large water\n
              volume for its surface area.  The drainage basin is also fairly wide,\n
              including about a half of the Walliser Alps and the Berner Alps.  Therefore,\n
              nutrient loading from natural sources is more or less equivalent in amount to\n
              that from industrial and domestic waste water.  The dissolved oxygen\n
              concentration in the bottom water as well as the transparency has been\n
              dropping in recent years.  These measurements clearly indicate the progress of\n
              eutrophication in the lake.  At present, approximately 700,000 people get\n
              drinking water from the lake, so that the water quality is under strict legal\n
              control by the cantons surrounding the lake.\n
              \n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS (Q1)</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>584</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>88.9</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>309.7</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>152.7</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>167</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>11.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>7,975</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-07-01.</li>\n
              <LI> Names of main islands: None (1).</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Rhone R.)(Q1).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Geneva, 1931-1960 (2)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Mean temp. [deg C]</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>1.1</TD> <TD>2.2</TD> <TD>6.1</TD> <TD>10.1</TD> <TD>14.1</TD> <TD>17.8</TD> <TD>19.9</TD> <TD>19.1</TD> <TD>15.8</TD> <TD>10.3</TD> <TD>5.7</TD> <TD>2.1</TD> <TD>10.3</TD></TR>\n
              <TR><TD COLSPAN=13>Precipitation [mm]</TD></TR>\n
              <TR ALIGN="center"><TD>63</TD> <TD>56</TD> <TD>55</TD> <TD>51</TD> <TD>67</TD> <TD>89</TD> <TD>64</TD> <TD>94</TD> <TD>99</TD> <TD>72</TD> <TD>83</TD> <TD>59</TD> <TD>852</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine: 2,036 hr yr-1 (2).</li>\n
              <LI> Solar radiation: 11.42 MJ m-2 day-1 (Q1).</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-01.gif" width="376" height="232"></p>\n
              Fig. EUR-07-01<BR>\n
              Bathymetric map (1).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature [deg C](Q1)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>1968-1969</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>S*</TD> <TD>5.9</TD> <TD>5.4</TD> <TD>6.5</TD> <TD>18.9</TD> <TD>13.0</TD> <TD>16.0</TD> <TD>20.4</TD> <TD>19.8</TD> <TD>18.3</TD> <TD>15.7</TD> <TD>11.3</TD> <TD>7.2</TD></TR>\n
              <TR><TD COLSPAN=13>* Surface.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: None (Q1).</li>\n
              <LI> Mixing type: Monomictic.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY: Fig. EUR-07-02.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-02.gif" width="323" height="181"></p>\n
              Fig. EUR-07-02<BR>\n
              Transparency [m] at Grand Lac, main basin (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E4 DO: Fig. EUR-07-03.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-03.gif" width="373" height="211"></p>\n
              Fig. EUR-07-03<BR>\n
              DO [mg l-1] at Grand Lac, 1978 (1).\n
              </OL>\n
              <br>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION: EUR-07-04.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-04.gif" width="349" height="165"></p>\n
              Fig. EUR-07-04<BR>\n
              Chlorophyll a concentration [micro g l-1] in the trophogenic layer, 1976 (1).\n
              </OL>\n
              <br>\n
              \n
              <B>E7 NITROGEN CONCENTRATION: Fig. EUR-07-05.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-05.gif" width="336" height="244"></p>\n
              Fig. EUR-07-05<BR>\n
              Nitrogen concentrations [mg l-1] at Grand Lac, 1982 (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION</B>\n
              \n
              <UL>\n
              <LI> Total-P: Fig. EUR-07-06.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-06.gif" width="336" height="225"></p>\n
              Fig. EUR-07-06<BR>\n
              Time-depth distribution of Total-P [micro g l-1] at Grand Lac, 1978 (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E10 PAST TRENDS (3)</B>\n
              \n
              <UL>\n
              <LI> Chlorophyll a [micro g l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>1976</TH> <TH>1977</TH> <TH>1978</TH> <TH>1979</TH> <TH>1980</TH> <TH>1981</TH> <TH>1982</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>7.3</TD> <TD>4.7</TD> <TD>4.9</TD> <TD>4.8</TD> <TD>4.7</TD> <TD>7.5</TD> <TD>5.2</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-07.gif" width="302" height="192"></p>\n
              Fig. EUR-07-07<BR>\n
              Trend of transparency [m](4).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-08.gif" width="349" height="193"></p>\n
              Fig. EUR-07-08<BR>\n
              Trend of DO [mg l-1] at 300 m depth (4).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-09.gif" width="255" height="242"></p>\n
              Fig. EUR-07-09<BR>\n
              Trend of NH4-N concentration [mg l-1](1).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-10.gif" width="239" height="280"></p>\n
              Fig. EUR-07-10<BR>\n
              Trend of NO3-N concentration [mg l-1](1).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-11.gif" width="261" height="260"></p>\n
              Fig. EUR-07-11<BR>\n
              Trend of Total-P concentration [mg l-1](1).\n
              </OL>\n
              <br>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes (Q1, 5)\n
              <BR>Phragmites communis, Typha latifolia, Schoenoplectus lacustris.</li>\n
              <LI> Floating macrophytes (Q1, 5)\n
              <BR>Potamogeton nodosus, Nymphaea alba, Nuphar luteum, Polygonum amphibium.</li>\n
              <LI> Submerged macrophytes (Q1, 5)\n
              <BR>Potamogeton pectinatus, P. perfoliatus, P. lucens, Zannichellia palustris, Myriophyllum spicatum.</li>\n
              <LI> Phytoplankton (3, 6)\n
              <BR>Asterionella formosa (dominant period in 1982: January-June), Synedra acus (May), Ceratium hirundinella (July and September), Melosira binderana (September), Fragilaria crotonensis (August), Oscillatoria rubescens (October, November and end of December), Aphanizomenon flos-aquae (end of October, Beginning of December).</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton (7)\n
              <BR>Keratella cochlearis, K. quadrata, Notholca caudata, Epistylis lacustris, Synchaeta pectinata, Daphnia longispina.</li>\n
              <LI> Benthos (1)\n
              <BR>Polycelis tenuis, Dugesia tigrina, D. lugubris, Dendrocoelum lacteum, Dreissena polymorpha, Asellus aquaticus.</li>\n
              <LI> Fish: Perca fluviatilis, Coregonus sp., Salmo trutta, Lota lota (Q1).</li>\n
              </UL>\n
              \n
              <B>F3 PRIMARY PRODUCTION RATE: Fig. EUR-07-12.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur07-12.gif" width="319" height="191"></p>\n
              Fig. EUR-07-12<BR>\n
              Primary production rate in the trophogenic layer, 1976 (1)\n
              </OL>\n
              <br>\n
              \n
              <B>F5 FISHERY PRODUCTS (Q1)</B>\n
              \n
              <UL>\n
              <LI> Annual fish catch [metric tons]\n
              <BR>1982: 347.9.</li>\n
              </UL>\n
              \n
              <B>F6 PAST TRENDS (3)</B>\n
              \n
              <UL>\n
              <LI> Primary production rate [g C m-2 yr-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TH>1976</TH> <TH>1977</TH> <TH>1978</TH> <TH>1979</TH> <TH>1980</TH> <TH>1981</TH> <TH>1982</TH></TR>\n
              <TR ALIGN="center"><TD>223</TD> <TD>174</TD> <TD>157</TD> <TD>170</TD> <TD>205</TD> <TD>231</TD> <TD>230</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>G. SOCIO-ECONOMIC CONDITIONS (Q2)</H3>\n
              \n
              <B>G1 LAND USE IN THE CATCHMENT AREA</B>\n
              \n
              <UL>\n
              <LI> Main types of woody vegetation: Conifer forest.</li>\n
              <LI> Main types of herbaceous vegetation: Meadows and pasture lands.</li>\n
              <LI> Main kinds of crops\n
              <BR>Grape (south slope); maize, beet and potato (Midland area and Rhone Valley); occasionally large orchards and vegetable growing.</li>\n
              </UL>\n
              \n
              \n
              <B>G2 INDUSTRIES IN THE CATCHMENT AREA AND THE LAKE</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TH></TH> <TH>No. of persons engaged(1980)</TH> <TH>Main products or major industries</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Primary industry</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Agriculture</TD> <TD>30,000</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Fisheries</TD> <TD>100</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Secondary industry</TD> <TD> </TD> <TD>Chemicals, metals,machinery, and electrical machinery</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>G3 POPULATION IN THE CATCHMENT AREA</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TD COLSPAN=4>1980</TD></TR>\n
              <TR ALIGN="center"><TD></TD></TR>\n
              <TR><TH></TH> <TH>Population</TH> <TH>Population density [km-2]</TH> <TH>Major cities (population)</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>950,000</TD> <TD>119</TD> <TD>Geneva* (174,000), Lausanne, Montreux</TD></TR>\n
              <TR><TD COLSPAN=4>* Not all the city area is included in the drainage basin.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>H. LAKE UTILIZATION (Q2)</H3>\n
              \n
              <B>H1 LAKE UTILIZATION</B>\n
              <ol>\n
              Source of water, fisheries, navigation, tourism and recreation (swimming,\n
              sport-fishing, yachting).\n
              </ol>\n
              \n
              <B>H2 THE LAKE AS WATER RESOURCE</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR><TD COLSPAN=2>1980</TD></TR>\n
              <TR><TH></TH> <TH>Use rate [m3 sec-1]</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Domestic</TD> <TD>2.38</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Power plant</TD> <TD>N.A.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS (Q2)</H3>\n
              \n
              <B>I3 EUTROPHICATION</B>\n
              \n
              <UL>\n
              <LI> Nuisance caused by eutrophication\n
              <BR>Unusual algal bloom: Oscillatoria rubescens.</li>\n
              <LI> Nitrogen and phosphorus loadings to the lake [t yr-1]\n
              <BR>T-N: 1,300 (1982).  T-P: 1,270 (1980), 1,180 (1981), 1,350 (1982).</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>M. LEGISLATIVE AND INSTITUTIONAL MEASURES FOR UPGRADING LAKE ENVIRONMENTS (Q2)</H3>\n
              \n
              <B>M1 NATIONAL AND LOCAL LAWS CONCERNED</B>\n
              \n
              <UL>\n
              <LI> Names of the laws (the year of legislation)</li>\n
              <OL>\n
              <LI> Federal law on the Protection of Water against Pollution (Water Protection  Law)(1971)</li>\n
              </OL>\n
              <LI> Responsible authorities</li>\n
              <OL>\n
              <LI> Cantonal and Federal authorities</li>\n
              </OL>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI TYPE=A VALUE=17> Questionnaire filled by Dr. Eichenberger, Feldmeiden.</li>\n
              <LI TYPE=A VALUE=17> Questionnaire filled by Office Federal de la Protection de l'Environnement, Bern.</li>\n
              <LI TYPE=1 VALUE=1> Lachavanne, J.-B. (1980)  Les manifestations de l'eutrophisation des eaux dans un grand lac profond, le Leman (Suisse).  Schweiz. Z. Hydrol., 42(2): 127-154.</li>\n
              <LI> Muller, M. J. (1982)  Selected Climatic Data for a Global Set of Standard Stations for Vegetation Science.  306 pp.  Dr. W. Junk Publishers, The Hague.</li>\n
              <LI> Balvay, G., Blanc, P., Burkard, P., Burrus, D., Corvi, C., Druart, J.-C., Giger, W., Monod, R., Pelletier, J., Revaclier, R., Schnydrig, J.-P., Thelin, L., Vernet, J.-P. & Viel, M. (1982)  Rapports, sur les Etudes et Recherches Entreprises dans le Bassin lemanique, Programme quinquennal 1981-1985, Campagne, 1982.  182 pp.  Commission Internationale pour la Protection des Eaux du Leman contre la Pollution, Lausanne.</li>\n
              <LI> Commission Internationale pour la Protection des Eaux du Leman contre la Pollution (1980)  Le leman, on Lac &amp; Proteger!  31 pp.  Lausanne.</li>\n
              <LI> Lachavanne, J.-B. (1977)  Evolution de la flore et de la vegetation aquatiques du Leman.  Coden: Cndlar, 32(1): 121-132.</li>\n
              <LI> Naef, J. &amp; Martin, P. (1983)  Arch. Sc. Geneva, 36(3): 479-500.</li>\n
              <LI> Martin, P. &amp; Naff, J. (1978)  Plancton du lac Leman (caracteristique de l'annee 1977).  Seance, 26 octobre: 98-108.</li>\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
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              \n
              \n
              <H2>LAGO MAGGIORE (LAKE MAGGIORE)</H2>\n
              \n
              <b>Central part of the lake seen rom the cableway of Laveno</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-00.jpg" alt="Photo." width=380 height=258><br>\n
              Photo: A. Kurata\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Novara and Varese, Italy; and Ticino, Switzerland</li>\n
              <LI> 45:43-46:11N, 8:28-8:52E; 193.9 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>\n
              <BR>\n
              <H3>\n
              <BR>\n
              <H3>B. DESCRIPTION</H3></H3></H3>\n
              \n
              <OL>\n
              \n
              Lake Maggiore is the second largest of Italian lakes, but may rank first in beauty.  It is an internationally famous resort of Europe, with its picturesque and spectacular landscape, mild climate and luxuriant vegetation.  The climate favors a beautiful botanic garden on the lake shore, with exotic and rare plants including even those from the subtropical zone.  The lake has many islands and some of them are famous for their lovely parks and pretty villas.\n
              <br>\n
              L. Maggiore is 65 km long, 2-4.5 km wide and 370 m deep in its maximum depth.  Recently, eutrophication has proceeded in part of the littoral zones, and inflowing waste water is now completely treated.  More advanced plants with tertiary treatment are under construction.  The concentration of inorganic nitrogen in the lake water has increased gradually since 1960.  Those of reactive and total phosphorus also increased until 1977, but have since been decreasing.  During the past ten years, the biomass and composition of phytoplankton, chlorophyll concentration and primary productivity have been quite stable, most probably as the result of the control of waste water discharge from the drainage basin.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>213</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>37.5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>370</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>176.5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Unregulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>170</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>4</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>6,387</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-05-01.</li>\n
              <LI> Names of main islands: Brissago, Madre, Pescatori and Bella (1).</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Ticino R.)(Q).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Pallanza, 1951-1980 (Q)</li>\n
              <BR>\n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=26>Mean temp. [deg C] </TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR><TD>2.6</TD> <TD>4.3</TD> <TD>7.6</TD> <TD>11.5</TD> <TD>15.5</TD> <TD>19.2</TD> <TD>21.9</TD> <TD>21.1</TD> <TD>17.8</TD> <TD>12.6</TD> <TD>7.2</TD> <TD>3.7</TD> <TD>12.1 </TD></TR>\n
              <TR><TD COLSPAN=26>Precipitation [mm]</TD></TR>\n
              <TR><TD>73</TD> <TD>94</TD> <TD>119</TD> <TD>168</TD> <TD>161</TD> <TD>189</TD> <TD>130</TD> <TD>165</TD> <TD>171</TD> <TD>215</TD> <TD>170</TD> <TD>86</TD> <TD>1,744</TD></TR> \n
              </TABLE>\n
              </UL>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine (1982): 1985 hr yr-1 (Q).</li>\n
              <LI> Solar radiation (1982): 12.27 MJ m-2 day-1 (Q).</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-01.gif" width="232" height="340"></p>\n
              Fig. EUR-05-01<BR>\n
              Bathymetric map (Q).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature: Fig. EUR-05-03 and 04.</li>\n
              <LI> Freezing period: None (Q).</li>\n
              <LI> Mixing type: Oligomictic.</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>Due to the large maximum and mean depth of the lake, as well as to the peculiar climatic conditions of the area, a complete overturn of the waters of Lake Maggiore does not occur every year.  According to Piontelli and Tonolli (1964) and Vollenweider (1964), the layer usually involved in the winter overturn is 100 to 150 m deep, whereas a complete mixing occurs only every five to seven years (2).</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY: Fig. EUR-05-02.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-02.gif" width="262" height="292"></p>\n
              Fig. EUR-05-02<BR>\n
              Seasonal trend of transparency [m], 1985 (3).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-03.gif" width="319" height="362"></p>\n
              Fig. EUR-05-03<BR>\n
              Seasonal change of water temperature, 1962-1984 and 1985 (3).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-04.gif" width="312" height="247"></p>\n
              Fig. EUR-05-04<BR>\n
              Depth/season isotherms: Mean values for 1962-1971.  After Barbanti et al., 1974 (2).\n
              </OL>\n
              <br>\n
              \n
              <B>E2 pH: Fig. EUR-05-05.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-05.gif" width="272" height="346"></p>\n
              Fig. EUR-05-05<BR>\n
              Seasonal trends of pH, 1983-1984.  Stations L and T are located in the map below (4).\n
              </OL>\n
              <br>\n
              \n
              <B>E3 SS: Fig. EUR-05-06.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-06.gif" width="312" height="221"></p>\n
              Fig. EUR-05-06<BR>\n
              Depth/season isopleths of SS [mg l-1], 1985 (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E4 DO: Fig. EUR-05-07.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-07.gif" width="265" height="217"></p>\n
              Fig. EUR-05-07<BR>\n
              Seasonal trends of DO [mg l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION: Fig. EUR-05-08.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-08.gif" width="274" height="201"></p>\n
              Fig. EUR-05-08<BR>\n
              Vertical and seasonal distribution of chlorophyll concentration [micro g l-1], 1985.\n
              </OL>\n
              <br>\n
              \n
              <B>E7 NITROGEN CONCENTRATION</B>\n
              \n
              <UL>\n
              <LI> NH4-N: Fig. EUR-05-09.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-09.gif" width="277" height="225"></p>\n
              Fig. EUR-05-09<BR>\n
              Seasonal trends of NH4-N concentration [mg l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> NO3-N: Fig. EUR-05-10.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-10.gif" width="320" height="225"></p>\n
              Fig. EUR-05-10<BR>\n
              Seasonal trends of NO3-N concentration [mg l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> PON: Fig. EUR-05-11.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-11.gif" width="311" height="226"></p>\n
              Fig. EUR-05-11<BR>\n
              Vertical and seasonal distribution of PON [micro g l-1], 1985 (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION</B>\n
              \n
              <UL>\n
              <LI> PO4-P: Fig. EUR-05-12.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-12.gif" width="273" height="198"></p>\n
              Fig. EUR-05-12<BR>\n
              Seasonal trends of PO4-P concentration [micro g l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Total-P: Fig. EUR-05-13.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-13.gif" width="285" height="218"></p>\n
              Fig. EUR-05-13<BR>\n
              Seasonal trends of Total-P concentration [micro g l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              <B>E10 PAST TRENDS: Fig. EUR-05-14, 15 and 16.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-14.gif" width="353" height="215"></p>\n
              Fig. EUR-05-14<BR>\n
              Trend of the mean concentration of DO in the whole lake column (3).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-15.gif" width="374" height="210"></p>\n
              Fig. EUR-05-15<BR>\n
              Trend of the mean concentration of NO3-N in the whole lake column (3).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-16.gif" width="334" height="207"></p>\n
              Fig. EUR-05-16<BR>\n
              Trend of the mean concentrations of Total-P and PO4-P in the whole lake column (3).\n
              </OL>\n
              <br>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA (Q)</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes\n
              <BR>Phragmites australis, Schoenoplectus lacustris, Typha latifolia.</li>\n
              <LI> Floating macrophytes: Trapa natans var. verbanensis.</li>\n
              <LI> Submerged macrophytes\n
              <BR>Lagarosiphon major, Elodea densa, Myriophyllum spicatum, Ceratophyllum demersum, Potamogeton perfoliatus.</li>\n
              <LI> Phytoplankton\n
              <BR>Oscillatoria rubescens, Microcystis aeruginosa, Asterionella formosa, Fragilaria crotonensis, Melosira islandica, M. varians, Cyclotella comensis, Synedra acus, Rhodomonas minuta, R. lacustris, Cryptomonas ovata, Ceratium hirundinella, Mougeotia sp.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA (Q)</B>\n
              \n
              <UL>\n
              <LI> Zooplankton\n
              <BR>Copepoda (Cyclops abyssorum, Mesocyclops leuckarti, Megacyclops viridis, Mixodiaptomus laciniatus, Eudiaptomus padanus), Cladocera (Daphnia hyalina, Diaphanosoma brachyurum, Bosmina coregoni, Leptodora kindtii, Bythotrephes longimanus), Rotifera (Asplanchna priodonta, Keratella cochlearis, Synchaeta pectinata, S./ oblonga. Polyarthra dolichopteravulgaris, Conochilus unicornis, Pompholyx sulcata).</li>\n
              <LI> Benthos\n
              <BR>Uncinais uncinata, Stylaria lacustris, Dero digitata, Nais elinguis, Branchiura sowerbyi, Potamothrix hammoniensis, Ilyodrilus templetoni, Limnodrilus hoffmeisteri, Spirosperma ferox, Psammoryctides barbatus, Tubifex tubifex, T. ignotus, Bothrioneurum vejdovskianum.</li>\n
              </UL>\n
              \n
              <B>F3 PRIMARY PRODUCTION RATE [g m-2 day-1](Q)</B>\n
              \n
              \n
              <OL>\n
              \n
              <TABLE WIDTH=570>\n
              <tr><td colspan=12>Lake centre, 1981</td></tr>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0.07</TD> <TD>-</TD> <TD>1.88</TD> <TD>1.15</TD> <TD>0.97</TD> <TD>0.98</TD> <TD>1.37</TD> <TD>0.88</TD> <TD>-</TD> <TD>0.83</TD> <TD>-</TD> <TD>-</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>F4 BIOMASS (Q)</B>\n
              \n
              <UL>\n
              <LI> Trapa natans var. verbanensis [g (dry wt.) m-2]\n
              <BR>August 1983: 620*.  * Maximum biomass Fig. EUR-05-17</li>\n
              </UL>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-17.gif" width="392" height="255"></p>\n
                <p>Seasonal fluctuation in the biomass of phytoplankton (Station Ghiffa,\n
                  1985)(3).</p>\n
              </OL>\n
              \n
              <UL>\n
              <LI> Fish biomass [t (dry wt.)](Q)</li>\n
              <BR>\n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TH> </TH> <TH>1981</TH> <TH>1982</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Coregonus sp.</TD> <TD>69.1</TD> <TD>103.2 </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Alburnus alburnus alborella</TD> <TD>42.7</TD> <TD>85.0 </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Perca fluviatilis</TD> <TD>2.3</TD> <TD>3.5 </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Salmo trutta</TD> <TD>1.7</TD> <TD>1.3 </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Leuciscus cephalus</TD> <TD>0.8</TD> <TD>- </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Esox Iucius</TD> <TD>0.1</TD> <TD>- </TD></TR>\n
              </TABLE>\n
              </UL>\n
              </OL>\n
              \n
              <B>F5 FISHERY PRODUCTS (Q)</B>\n
              \n
              <UL>\n
              <LI> Annual fish catch [metric tons]\n
              <BR>1981-1982: 155.1.</li>\n
              </UL>\n
              \n
              <B>F6 PAST TRENDS (Q)</B>\n
              \n
              <UL>\n
              <LI> Past trend of phytoplankton community\n
              <BR>The structure and biomass of phytoplankton community, chlorophyll a concentration and primary productivity have been fairly stable during the last 10-15 years.  The production rate has remained more or less the same at ca.  300 g C m-2 yr-1 (14C technique) during 1970-1981.</li>\n
              </UL>\n
              \n
              <B>F7 NOTES ON THE REMARKABLE CHANGES OF BIOTA IN THE LAKE IN RECENT YEARS*</B>\n
              <P>\n
              <OL>Two submerged plant species, Isoetes lacustris and I. echinospora, which once\n
              grew in the lake are now absent.\n
              The copepod, Heterocope saliens, and the cladocera, Sida cristallina, which\n
              lived in open water communities, have disappeared.  In the same period, a\n
              cladoceran species, Chydorus spahaericus, colonized open waters occasionally\n
              during summers.\n
              The benthic amphipod, Niphargus foreli, formerly abundant in the 100-370 m\n
              depth zone, is now completely missing.  Among Oligochaeta, Tubifex tubifex,\n
              Potamothrix hammoniensis and Stylodrilus heringianus are new settlers, while\n
              Spirosperma ferox and Bythonomus lemani have badly declined.\n
              Though copepods are still the major component of pelagical plankton community,\n
              cladocerans are gradually becoming more and more important.\n
              * During the last 30 years.\n
              </OL>\n
              \n
              \n
              <BR>\n
              <H3>G. SOCIO-ECONOMIC CONDITIONS (Q)</H3>\n
              \n
              <B>G1 LAND USE IN THE DRAINAGE BASIN</B>\n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TH></TH> <TH>Area [km2]</TH> <TH>[%]</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Natural landscape</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Woody vegetation</TD> <TD>1,301</TD> <TD>19.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Rocky outcrops and debris</TD> <TD>1,334</TD> <TD>20.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Permanent snow and glacier</TD> <TD>99</TD> <TD>1.5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Lakes</TD> <TD>312</TD> <TD>4.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Others</TD> <TD>3,516</TD> <TD>53.6</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Total</TD> <TD>6,562</TD> <TD>100.0</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Main types of woody vegetation (lake level to 2,000 m in altitude)\n
              <BR>Deciduous broadleaf forest (Abies, Pinus, Picea, Larix).</li>\n
              <LI> Main types of herbaceous vegetation\n
              <BR>Meadow (Arrhenatheretum elatioris and Trisetetum florescentis); grazing ground.</li>\n
              <LI> Types of the other important vegetation: Shallow freshwater marsh; peat bog.</li>\n
              <LI> Main kinds of crops: Wheat, maize, barley, oat, potato.</li>\n
              </UL>\n
              \n
              <B>G2 INDUSTRIES IN THE CATCHMENT AREA AND THE LAKE</B>\n
              \n
              <UL>\n
              <LI> Agriculture\n
              <BR>Number of persons engaged (excluding seasonal laborers) 11,542; number of establishments 30,424.</li>\n
              <LI> Mining: Number of persons engaged 139,903.</li>\n
              </UL>\n
              \n
              <B>G3 POPULATION IN THE CATCHMENT AREA </B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TD COLSPAN=4>1971</TD></TR>\n
              <TR ALIGN="center"><TH></TH> <TH>Population</TH> <TH>Population density [km-2]</TH> <TH>Major cities (population)</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>669,900</TD> <TD>101.5</TD> <TD>Locarno, Arona, Stresa, Pallanza, Intra</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>H. LAKE UTILIZATION (Q)</H3>\n
              \n
              <B>H1 LAKE UTILIZATION</B><p>\n
              <OL>\n
              Source of water, fisheries, navigation, tourism and recreation (swimming,\n
              sport-fishing, yachting).\n
              </OL>\n
              \n
              <B>H2 THE LAKE AS WATER RESOURCE</B>\n
              \n
              <UL>\n
              <LI> Use rates [m3 sec-1]\n
              <BR>10 for domestic use, and 112 for industrial use.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS (Q)</H3>\n
              \n
              <B>I3 EUTROPHICATION</B>\n
              \n
              <UL>\n
              <LI> Nitrogen and phosphorus loadings to the lake [t yr-1]\n
              <BR>T-N: 11,000.  T-P: 550.</li>\n
              </UL>\n
              \n
              \n
              <UL>\n
              <LI> Nitrogen and phosphorus loadings from main inflowing rivers [t yr-1](3)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TH ALIGN="left">River</TH> <TH>T-N</TH> <TH>T-P</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maggia</TD> <TD>1,400</TD> <TD>17</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Verzasca</TD> <TD>370</TD> <TD>3.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Strona</TD> <TD>870</TD> <TD>9.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Giona</TD> <TD>78</TD> <TD>1.2</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Ticino immissaric 1,800</TD> <TD>31</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Cannobino</TD> <TD>140</TD> <TD>2.1</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">S. Bernardino</TD> <TD>260</TD> <TD>3.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">S. Giovanni</TD> <TD>160</TD> <TD>2.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Toce (Ossola)</TD> <TD>1,900</TD> <TD>62</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Erno</TD> <TD>60</TD> <TD>0.7</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Vevera</TD> <TD>81</TD> <TD>6.4</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Bardello</TD> <TD>390</TD> <TD>48</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Boesio</TD> <TD>180</TD> <TD>9.0</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Tresa</TD> <TD>1,400</TD> <TD>65</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>9,100</TD> <TD>261</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>J. WASTEWATER TREATMENTS (Q)</H3>\n
              \n
              <B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B>\n
              <OL>\n
              d) Measurable pollution with limited wastewater treatment.\n
              </OL>\n
              \n
              <B>J3 SANITARY FACILITIES AND SEWERAGE</B>\n
              \n
              <UL>\n
              <LI> Municipal and industrial wastewater treatment systems\n
              <BR>14 major plants (treating 45% of total sewage activated sludge plus P and N removal) with several small plants without P and N removal.</li>\n
              <LI> Supplementary notes\n
              <BR>A system of treatment plants with tertiary treatment is under construction and will be completed presumably in a few years.  This will purify all discharge waters from the western side of the lake and from Swiss part of the drainage basin.  For the eastern side, the construction of treatment plants is expected to take longer time.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>M. LEGISLATIVE AND INSTITUTIONAL MEASURES FOR UPGRADING LAKE ENVIRONMENTS (Q)</H3>\n
              \n
              <B>M1 NATIONAL AND LOCAL LAWS CONCERNED</B>\n
              \n
              <UL>\n
              <LI> Names of the laws (the year of legislation)</li>\n
              <OL>\n
              <LI> National law Nr 319 (1976)</li>\n
              <LI> National law Nr 650</li>\n
              </OL>\n
              <LI> Responsible authorities\n
              <BR>Regional government and municipalities</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI TYPE=A VALUE=17> Questionnaire filled by Dr. R. de Bernardi, Istituto Italiano di Idrobiologia, Pallanza.</li>\n
              <LI TYPE=1 VALUE=1> John Bartholomew &amp; Son Ltd. (1985)  The Times Atlas of the World, Plate 78.  Times Books Ltd., London.</li>\n
              <LI> de Bernardi, R., Giussani, G. &amp; Grimaldi, E. (1984)  Lago Maggiore.  &quot;Ecosystems of the World 23; Lakes and Reservoirs&quot; (ed. Taub, F. B.), pp.  247-277.  Elsevier Science Publishers, Amsterdam.</li>\n
              <LI> Commissione Internazionale per la protezione delle acque italosvizzere (1987)  Ricerche sull' evoluzione del Lago Maggiore, Aspetti limnologici Programma quinquennale 1983-1987, Canpagna 1985, pp. 144, Consiglio Nazionale delle Ricerche Istituto Italiano di Idrobiologia (Water Quality Protection Committee of Italy and Switzerland: Report of the limnological survey of Lake Maggiore, Five-year project for 1983-1987.  Italian Science and Technology Agency, Italian Institute of Hydrobiology), pp. 144.  Pallanza.*</li>\n
              <LI> Commissione Internazionale per la protezione delle acque italosvizzere (P.  Guilizzoni e G. Galanti)(l987)  Rapporto finale Biomassa, produzione e ciclo dei nutrienti nella zono umida di Fondotoce (Bacino delle Isoke Borromee-Lago Maggiore).  Programma triennale 1983-1985.  (Water Quality Protection Committee of Italy and Switzerland: Final report on biomass, primary production and nutrient circulation at Fondotoce area (Lake Maggiore, Borromee Island Region), Three-year project for 1983-1985.  Italian Science and Technology Agency, Italian Institute of Hydrobiology), pp. 86.  Pallanza.* </li>\n
              <br>* The Italian titles are tentatively translated into English in parentheses.\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              """
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            "created_at" => "2020-04-23 09:03:37"
            "updated_at" => "2020-06-03 15:01:41"
          ]
          #original: array:18 [
            "id" => 3467
            "lake_id" => 91
            "lake_metadata_id" => 1
            "item_id" => 198
            "author" => null
            "original_file_name" => "eur-05.html"
            "system_file_name" => "lake_item_3467.html"
            "file_type" => "6"
            "file_size" => 18953
            "group_name_id" => 6
            "file_title" => "Lake Maggiore"
            "search_flag" => 0
            "inner_html" => 2
            "html" => """
              \n
              \n
              <H2>LAGO MAGGIORE (LAKE MAGGIORE)</H2>\n
              \n
              <b>Central part of the lake seen rom the cableway of Laveno</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-00.jpg" alt="Photo." width=380 height=258><br>\n
              Photo: A. Kurata\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Novara and Varese, Italy; and Ticino, Switzerland</li>\n
              <LI> 45:43-46:11N, 8:28-8:52E; 193.9 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>\n
              <BR>\n
              <H3>\n
              <BR>\n
              <H3>B. DESCRIPTION</H3></H3></H3>\n
              \n
              <OL>\n
              \n
              Lake Maggiore is the second largest of Italian lakes, but may rank first in beauty.  It is an internationally famous resort of Europe, with its picturesque and spectacular landscape, mild climate and luxuriant vegetation.  The climate favors a beautiful botanic garden on the lake shore, with exotic and rare plants including even those from the subtropical zone.  The lake has many islands and some of them are famous for their lovely parks and pretty villas.\n
              <br>\n
              L. Maggiore is 65 km long, 2-4.5 km wide and 370 m deep in its maximum depth.  Recently, eutrophication has proceeded in part of the littoral zones, and inflowing waste water is now completely treated.  More advanced plants with tertiary treatment are under construction.  The concentration of inorganic nitrogen in the lake water has increased gradually since 1960.  Those of reactive and total phosphorus also increased until 1977, but have since been decreasing.  During the past ten years, the biomass and composition of phytoplankton, chlorophyll concentration and primary productivity have been quite stable, most probably as the result of the control of waste water discharge from the drainage basin.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>213</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>37.5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>370</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>176.5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Unregulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>170</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>4</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>6,387</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-05-01.</li>\n
              <LI> Names of main islands: Brissago, Madre, Pescatori and Bella (1).</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Ticino R.)(Q).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Pallanza, 1951-1980 (Q)</li>\n
              <BR>\n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=26>Mean temp. [deg C] </TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR><TD>2.6</TD> <TD>4.3</TD> <TD>7.6</TD> <TD>11.5</TD> <TD>15.5</TD> <TD>19.2</TD> <TD>21.9</TD> <TD>21.1</TD> <TD>17.8</TD> <TD>12.6</TD> <TD>7.2</TD> <TD>3.7</TD> <TD>12.1 </TD></TR>\n
              <TR><TD COLSPAN=26>Precipitation [mm]</TD></TR>\n
              <TR><TD>73</TD> <TD>94</TD> <TD>119</TD> <TD>168</TD> <TD>161</TD> <TD>189</TD> <TD>130</TD> <TD>165</TD> <TD>171</TD> <TD>215</TD> <TD>170</TD> <TD>86</TD> <TD>1,744</TD></TR> \n
              </TABLE>\n
              </UL>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine (1982): 1985 hr yr-1 (Q).</li>\n
              <LI> Solar radiation (1982): 12.27 MJ m-2 day-1 (Q).</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-01.gif" width="232" height="340"></p>\n
              Fig. EUR-05-01<BR>\n
              Bathymetric map (Q).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature: Fig. EUR-05-03 and 04.</li>\n
              <LI> Freezing period: None (Q).</li>\n
              <LI> Mixing type: Oligomictic.</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>Due to the large maximum and mean depth of the lake, as well as to the peculiar climatic conditions of the area, a complete overturn of the waters of Lake Maggiore does not occur every year.  According to Piontelli and Tonolli (1964) and Vollenweider (1964), the layer usually involved in the winter overturn is 100 to 150 m deep, whereas a complete mixing occurs only every five to seven years (2).</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY: Fig. EUR-05-02.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-02.gif" width="262" height="292"></p>\n
              Fig. EUR-05-02<BR>\n
              Seasonal trend of transparency [m], 1985 (3).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-03.gif" width="319" height="362"></p>\n
              Fig. EUR-05-03<BR>\n
              Seasonal change of water temperature, 1962-1984 and 1985 (3).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-04.gif" width="312" height="247"></p>\n
              Fig. EUR-05-04<BR>\n
              Depth/season isotherms: Mean values for 1962-1971.  After Barbanti et al., 1974 (2).\n
              </OL>\n
              <br>\n
              \n
              <B>E2 pH: Fig. EUR-05-05.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-05.gif" width="272" height="346"></p>\n
              Fig. EUR-05-05<BR>\n
              Seasonal trends of pH, 1983-1984.  Stations L and T are located in the map below (4).\n
              </OL>\n
              <br>\n
              \n
              <B>E3 SS: Fig. EUR-05-06.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-06.gif" width="312" height="221"></p>\n
              Fig. EUR-05-06<BR>\n
              Depth/season isopleths of SS [mg l-1], 1985 (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E4 DO: Fig. EUR-05-07.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-07.gif" width="265" height="217"></p>\n
              Fig. EUR-05-07<BR>\n
              Seasonal trends of DO [mg l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION: Fig. EUR-05-08.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-08.gif" width="274" height="201"></p>\n
              Fig. EUR-05-08<BR>\n
              Vertical and seasonal distribution of chlorophyll concentration [micro g l-1], 1985.\n
              </OL>\n
              <br>\n
              \n
              <B>E7 NITROGEN CONCENTRATION</B>\n
              \n
              <UL>\n
              <LI> NH4-N: Fig. EUR-05-09.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-09.gif" width="277" height="225"></p>\n
              Fig. EUR-05-09<BR>\n
              Seasonal trends of NH4-N concentration [mg l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> NO3-N: Fig. EUR-05-10.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-10.gif" width="320" height="225"></p>\n
              Fig. EUR-05-10<BR>\n
              Seasonal trends of NO3-N concentration [mg l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> PON: Fig. EUR-05-11.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-11.gif" width="311" height="226"></p>\n
              Fig. EUR-05-11<BR>\n
              Vertical and seasonal distribution of PON [micro g l-1], 1985 (3).\n
              </OL>\n
              <br>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION</B>\n
              \n
              <UL>\n
              <LI> PO4-P: Fig. EUR-05-12.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-12.gif" width="273" height="198"></p>\n
              Fig. EUR-05-12<BR>\n
              Seasonal trends of PO4-P concentration [micro g l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Total-P: Fig. EUR-05-13.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-13.gif" width="285" height="218"></p>\n
              Fig. EUR-05-13<BR>\n
              Seasonal trends of Total-P concentration [micro g l-1], 1983-1984 (4).\n
              </OL>\n
              <br>\n
              \n
              <B>E10 PAST TRENDS: Fig. EUR-05-14, 15 and 16.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-14.gif" width="353" height="215"></p>\n
              Fig. EUR-05-14<BR>\n
              Trend of the mean concentration of DO in the whole lake column (3).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-15.gif" width="374" height="210"></p>\n
              Fig. EUR-05-15<BR>\n
              Trend of the mean concentration of NO3-N in the whole lake column (3).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-16.gif" width="334" height="207"></p>\n
              Fig. EUR-05-16<BR>\n
              Trend of the mean concentrations of Total-P and PO4-P in the whole lake column (3).\n
              </OL>\n
              <br>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA (Q)</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes\n
              <BR>Phragmites australis, Schoenoplectus lacustris, Typha latifolia.</li>\n
              <LI> Floating macrophytes: Trapa natans var. verbanensis.</li>\n
              <LI> Submerged macrophytes\n
              <BR>Lagarosiphon major, Elodea densa, Myriophyllum spicatum, Ceratophyllum demersum, Potamogeton perfoliatus.</li>\n
              <LI> Phytoplankton\n
              <BR>Oscillatoria rubescens, Microcystis aeruginosa, Asterionella formosa, Fragilaria crotonensis, Melosira islandica, M. varians, Cyclotella comensis, Synedra acus, Rhodomonas minuta, R. lacustris, Cryptomonas ovata, Ceratium hirundinella, Mougeotia sp.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA (Q)</B>\n
              \n
              <UL>\n
              <LI> Zooplankton\n
              <BR>Copepoda (Cyclops abyssorum, Mesocyclops leuckarti, Megacyclops viridis, Mixodiaptomus laciniatus, Eudiaptomus padanus), Cladocera (Daphnia hyalina, Diaphanosoma brachyurum, Bosmina coregoni, Leptodora kindtii, Bythotrephes longimanus), Rotifera (Asplanchna priodonta, Keratella cochlearis, Synchaeta pectinata, S./ oblonga. Polyarthra dolichopteravulgaris, Conochilus unicornis, Pompholyx sulcata).</li>\n
              <LI> Benthos\n
              <BR>Uncinais uncinata, Stylaria lacustris, Dero digitata, Nais elinguis, Branchiura sowerbyi, Potamothrix hammoniensis, Ilyodrilus templetoni, Limnodrilus hoffmeisteri, Spirosperma ferox, Psammoryctides barbatus, Tubifex tubifex, T. ignotus, Bothrioneurum vejdovskianum.</li>\n
              </UL>\n
              \n
              <B>F3 PRIMARY PRODUCTION RATE [g m-2 day-1](Q)</B>\n
              \n
              \n
              <OL>\n
              \n
              <TABLE WIDTH=570>\n
              <tr><td colspan=12>Lake centre, 1981</td></tr>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0.07</TD> <TD>-</TD> <TD>1.88</TD> <TD>1.15</TD> <TD>0.97</TD> <TD>0.98</TD> <TD>1.37</TD> <TD>0.88</TD> <TD>-</TD> <TD>0.83</TD> <TD>-</TD> <TD>-</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>F4 BIOMASS (Q)</B>\n
              \n
              <UL>\n
              <LI> Trapa natans var. verbanensis [g (dry wt.) m-2]\n
              <BR>August 1983: 620*.  * Maximum biomass Fig. EUR-05-17</li>\n
              </UL>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur05-17.gif" width="392" height="255"></p>\n
                <p>Seasonal fluctuation in the biomass of phytoplankton (Station Ghiffa,\n
                  1985)(3).</p>\n
              </OL>\n
              \n
              <UL>\n
              <LI> Fish biomass [t (dry wt.)](Q)</li>\n
              <BR>\n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TH> </TH> <TH>1981</TH> <TH>1982</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Coregonus sp.</TD> <TD>69.1</TD> <TD>103.2 </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Alburnus alburnus alborella</TD> <TD>42.7</TD> <TD>85.0 </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Perca fluviatilis</TD> <TD>2.3</TD> <TD>3.5 </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Salmo trutta</TD> <TD>1.7</TD> <TD>1.3 </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Leuciscus cephalus</TD> <TD>0.8</TD> <TD>- </TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Esox Iucius</TD> <TD>0.1</TD> <TD>- </TD></TR>\n
              </TABLE>\n
              </UL>\n
              </OL>\n
              \n
              <B>F5 FISHERY PRODUCTS (Q)</B>\n
              \n
              <UL>\n
              <LI> Annual fish catch [metric tons]\n
              <BR>1981-1982: 155.1.</li>\n
              </UL>\n
              \n
              <B>F6 PAST TRENDS (Q)</B>\n
              \n
              <UL>\n
              <LI> Past trend of phytoplankton community\n
              <BR>The structure and biomass of phytoplankton community, chlorophyll a concentration and primary productivity have been fairly stable during the last 10-15 years.  The production rate has remained more or less the same at ca.  300 g C m-2 yr-1 (14C technique) during 1970-1981.</li>\n
              </UL>\n
              \n
              <B>F7 NOTES ON THE REMARKABLE CHANGES OF BIOTA IN THE LAKE IN RECENT YEARS*</B>\n
              <P>\n
              <OL>Two submerged plant species, Isoetes lacustris and I. echinospora, which once\n
              grew in the lake are now absent.\n
              The copepod, Heterocope saliens, and the cladocera, Sida cristallina, which\n
              lived in open water communities, have disappeared.  In the same period, a\n
              cladoceran species, Chydorus spahaericus, colonized open waters occasionally\n
              during summers.\n
              The benthic amphipod, Niphargus foreli, formerly abundant in the 100-370 m\n
              depth zone, is now completely missing.  Among Oligochaeta, Tubifex tubifex,\n
              Potamothrix hammoniensis and Stylodrilus heringianus are new settlers, while\n
              Spirosperma ferox and Bythonomus lemani have badly declined.\n
              Though copepods are still the major component of pelagical plankton community,\n
              cladocerans are gradually becoming more and more important.\n
              * During the last 30 years.\n
              </OL>\n
              \n
              \n
              <BR>\n
              <H3>G. SOCIO-ECONOMIC CONDITIONS (Q)</H3>\n
              \n
              <B>G1 LAND USE IN THE DRAINAGE BASIN</B>\n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TH></TH> <TH>Area [km2]</TH> <TH>[%]</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Natural landscape</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Woody vegetation</TD> <TD>1,301</TD> <TD>19.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Rocky outcrops and debris</TD> <TD>1,334</TD> <TD>20.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Permanent snow and glacier</TD> <TD>99</TD> <TD>1.5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Lakes</TD> <TD>312</TD> <TD>4.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Others</TD> <TD>3,516</TD> <TD>53.6</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Total</TD> <TD>6,562</TD> <TD>100.0</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Main types of woody vegetation (lake level to 2,000 m in altitude)\n
              <BR>Deciduous broadleaf forest (Abies, Pinus, Picea, Larix).</li>\n
              <LI> Main types of herbaceous vegetation\n
              <BR>Meadow (Arrhenatheretum elatioris and Trisetetum florescentis); grazing ground.</li>\n
              <LI> Types of the other important vegetation: Shallow freshwater marsh; peat bog.</li>\n
              <LI> Main kinds of crops: Wheat, maize, barley, oat, potato.</li>\n
              </UL>\n
              \n
              <B>G2 INDUSTRIES IN THE CATCHMENT AREA AND THE LAKE</B>\n
              \n
              <UL>\n
              <LI> Agriculture\n
              <BR>Number of persons engaged (excluding seasonal laborers) 11,542; number of establishments 30,424.</li>\n
              <LI> Mining: Number of persons engaged 139,903.</li>\n
              </UL>\n
              \n
              <B>G3 POPULATION IN THE CATCHMENT AREA </B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TD COLSPAN=4>1971</TD></TR>\n
              <TR ALIGN="center"><TH></TH> <TH>Population</TH> <TH>Population density [km-2]</TH> <TH>Major cities (population)</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>669,900</TD> <TD>101.5</TD> <TD>Locarno, Arona, Stresa, Pallanza, Intra</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>H. LAKE UTILIZATION (Q)</H3>\n
              \n
              <B>H1 LAKE UTILIZATION</B><p>\n
              <OL>\n
              Source of water, fisheries, navigation, tourism and recreation (swimming,\n
              sport-fishing, yachting).\n
              </OL>\n
              \n
              <B>H2 THE LAKE AS WATER RESOURCE</B>\n
              \n
              <UL>\n
              <LI> Use rates [m3 sec-1]\n
              <BR>10 for domestic use, and 112 for industrial use.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS (Q)</H3>\n
              \n
              <B>I3 EUTROPHICATION</B>\n
              \n
              <UL>\n
              <LI> Nitrogen and phosphorus loadings to the lake [t yr-1]\n
              <BR>T-N: 11,000.  T-P: 550.</li>\n
              </UL>\n
              \n
              \n
              <UL>\n
              <LI> Nitrogen and phosphorus loadings from main inflowing rivers [t yr-1](3)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TH ALIGN="left">River</TH> <TH>T-N</TH> <TH>T-P</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maggia</TD> <TD>1,400</TD> <TD>17</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Verzasca</TD> <TD>370</TD> <TD>3.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Strona</TD> <TD>870</TD> <TD>9.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Giona</TD> <TD>78</TD> <TD>1.2</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Ticino immissaric 1,800</TD> <TD>31</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Cannobino</TD> <TD>140</TD> <TD>2.1</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">S. Bernardino</TD> <TD>260</TD> <TD>3.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">S. Giovanni</TD> <TD>160</TD> <TD>2.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Toce (Ossola)</TD> <TD>1,900</TD> <TD>62</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Erno</TD> <TD>60</TD> <TD>0.7</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Vevera</TD> <TD>81</TD> <TD>6.4</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Bardello</TD> <TD>390</TD> <TD>48</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Boesio</TD> <TD>180</TD> <TD>9.0</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Tresa</TD> <TD>1,400</TD> <TD>65</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>9,100</TD> <TD>261</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>J. WASTEWATER TREATMENTS (Q)</H3>\n
              \n
              <B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B>\n
              <OL>\n
              d) Measurable pollution with limited wastewater treatment.\n
              </OL>\n
              \n
              <B>J3 SANITARY FACILITIES AND SEWERAGE</B>\n
              \n
              <UL>\n
              <LI> Municipal and industrial wastewater treatment systems\n
              <BR>14 major plants (treating 45% of total sewage activated sludge plus P and N removal) with several small plants without P and N removal.</li>\n
              <LI> Supplementary notes\n
              <BR>A system of treatment plants with tertiary treatment is under construction and will be completed presumably in a few years.  This will purify all discharge waters from the western side of the lake and from Swiss part of the drainage basin.  For the eastern side, the construction of treatment plants is expected to take longer time.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>M. LEGISLATIVE AND INSTITUTIONAL MEASURES FOR UPGRADING LAKE ENVIRONMENTS (Q)</H3>\n
              \n
              <B>M1 NATIONAL AND LOCAL LAWS CONCERNED</B>\n
              \n
              <UL>\n
              <LI> Names of the laws (the year of legislation)</li>\n
              <OL>\n
              <LI> National law Nr 319 (1976)</li>\n
              <LI> National law Nr 650</li>\n
              </OL>\n
              <LI> Responsible authorities\n
              <BR>Regional government and municipalities</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI TYPE=A VALUE=17> Questionnaire filled by Dr. R. de Bernardi, Istituto Italiano di Idrobiologia, Pallanza.</li>\n
              <LI TYPE=1 VALUE=1> John Bartholomew &amp; Son Ltd. (1985)  The Times Atlas of the World, Plate 78.  Times Books Ltd., London.</li>\n
              <LI> de Bernardi, R., Giussani, G. &amp; Grimaldi, E. (1984)  Lago Maggiore.  &quot;Ecosystems of the World 23; Lakes and Reservoirs&quot; (ed. Taub, F. B.), pp.  247-277.  Elsevier Science Publishers, Amsterdam.</li>\n
              <LI> Commissione Internazionale per la protezione delle acque italosvizzere (1987)  Ricerche sull' evoluzione del Lago Maggiore, Aspetti limnologici Programma quinquennale 1983-1987, Canpagna 1985, pp. 144, Consiglio Nazionale delle Ricerche Istituto Italiano di Idrobiologia (Water Quality Protection Committee of Italy and Switzerland: Report of the limnological survey of Lake Maggiore, Five-year project for 1983-1987.  Italian Science and Technology Agency, Italian Institute of Hydrobiology), pp. 144.  Pallanza.*</li>\n
              <LI> Commissione Internazionale per la protezione delle acque italosvizzere (P.  Guilizzoni e G. Galanti)(l987)  Rapporto finale Biomassa, produzione e ciclo dei nutrienti nella zono umida di Fondotoce (Bacino delle Isoke Borromee-Lago Maggiore).  Programma triennale 1983-1985.  (Water Quality Protection Committee of Italy and Switzerland: Final report on biomass, primary production and nutrient circulation at Fondotoce area (Lake Maggiore, Borromee Island Region), Three-year project for 1983-1985.  Italian Science and Technology Agency, Italian Institute of Hydrobiology), pp. 86.  Pallanza.* </li>\n
              <br>* The Italian titles are tentatively translated into English in parentheses.\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              """
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                33 => "population_dens"
                34 => "siltation"
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                37 => "acidification"
                38 => "a_name"
                39 => "a_institute"
                40 => "a_address"
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              \n
              \n
              <H2>LAKE SKADAR</H2>\n
              \n
              <b>A view from lakeside hill</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur09-00.jpg" alt="Photo." width=380 height=258><br>\n
              Photo: CAR & DRIVER\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Yugoslavia; and Albania.</li>\n
              <LI> 42:10N, 19:20E; 5 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>\n
              <BR>\n
              <H3>B. DESCRIPTION</H3></H3>\n
              \n
              <OL>\n
              \n
              Lake Skadar is the largest lake in the Balkan district, situated at the southern end of the Dinaric Alps on the border of Yugoslavia and Albania.  It lies about 100 km to the southeast of the famous scenic town of Dubrovnik on the coast of the Adriatic Sea.  To the southwest of the lake rise high mountains, while to the northeast stretches a wide swamp.  There are many islands in the western part of the lake and a number of spots where ground water spouts up from the bottom (Okos).  The lake is considered to have been formed by dissolution of limestone in a tectonic basin during the Tertiary or Quarternary period.  It is a shallow lake with 8 m maximum depth and 5 m mean depth.\n
              <br>\n
              The Moraca River, which is the largest inflowing stream with cold water heavily loaded with suspended solids, has a great influence upon the transparency and water quality of this lake.  The Bojana River flows out from the south end and drains into the Adriatic Sea.  The phosphate concentration in the lake water is low, and the low transparency is attributed to the large amount of suspended solids in the inflowing water.  The lake is rich in fish and waterfowl fauna.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS (1)</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>372</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>1.93</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>8.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Regulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Normal range of annual water level fluctuation [m]</TD> <TD>2</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>207</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>5,490</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-09-01.</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Bojana R.).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Skadar (3)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=14>Mean temp. [deg C]*1</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>3.9</TD> <TD>5.8</TD> <TD>9.2</TD> <TD>13.1</TD> <TD>18.1</TD> <TD>21.7</TD> <TD>25.0</TD> <TD>24.7</TD> <TD>20.8</TD> <TD>16.1</TD> <TD>10.6</TD> <TD>6.7</TD> <TD>14.7</TD></TR>\n
              <TR><TD COLSPAN=14>Precipitation [mm]*2</TD></TR>\n
              <TR ALIGN="center"><TD>137</TD> <TD>140</TD> <TD>157</TD> <TD>132</TD> <TD>89</TD> <TD>48</TD> <TD>46</TD> <TD>28</TD> <TD>99</TD> <TD>198</TD> <TD>208</TD> <TD>154</TD> <TD>1,436</TD></TR>\n
              <TR><TD COLSPAN=14>*1 13-year mean.  *2 50-year mean.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine: 2,533 hr yr-1.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur09-01.gif" width="271" height="257"></p>\n
              Fig. EUR-09-01<BR>\n
              Bathymetric map (1).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature: Fig. EUR-09-02.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur09-02.gif" width="297" height="231"></p>\n
              Fig. EUR-09-02<BR>\n
              Water temperature [deg C](August 1974-December 1975)(4).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: Only twice in recent years (February 1954 and 1956).</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>The thermocline is not formed.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY [m](5)</B>\n
              <OL>\n
              Radus, 1977: 4.\n
              </OL>\n
              \n
              <B>E2 pH (6)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station I1, 1972-1973</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>7.2</TD> <TD>-</TD> <TD>7.2</TD> <TD>8.2</TD> <TD>7.9</TD> <TD>-</TD> <TD>-</TD> <TD>8.0</TD> <TD>8.0</TD> <TD>8.2</TD> <TD>8.0</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station I2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>7.8</TD> <TD>-</TD> <TD>8.1</TD> <TD>8.1</TD> <TD>8.1</TD> <TD>-</TD> <TD>-</TD> <TD>8.2</TD> <TD>8.2</TD> <TD>8.1</TD> <TD>8.0</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station II2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>7.8</TD> <TD>-</TD> <TD>7.8</TD> <TD>7.5</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>8.0</TD> <TD>8.2</TD> <TD>8.5</TD> <TD>8.2</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III1, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>7.8</TD> <TD>-</TD> <TD>8.2</TD> <TD>8.1</TD> <TD>8.1</TD> <TD>-</TD> <TD>-</TD> <TD>8.2</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>8.1</TD> <TD>-</TD> <TD>8.1</TD> <TD>8.2</TD> <TD>8.2</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>8.0</TD> <TD>8.3</TD> <TD>-</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Poseljani, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>8.2</TD> <TD>-</TD> <TD>8.2</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>8.0</TD> <TD>8.0</TD> <TD>8.1</TD> <TD>-</TD> <TD>-</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E7 NITROGEN CONCENTRATION (6)</B>\n
              \n
              <UL>\n
              <LI> NH4-N [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station I1, 1972-1973</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.000</TD> <TD>.000</TD> <TD>-</TD> <TD>.004</TD> <TD>.080</TD> <TD>.002</TD> <TD>.020</TD> <TD>.020</TD> <TD>.030</TD> <TD>.030</TD> <TD>.010</TD> <TD>.240</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station I2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.010</TD> <TD>.000</TD> <TD>-</TD> <TD>.000</TD> <TD>.030</TD> <TD>.000</TD> <TD>.016</TD> <TD>.030</TD> <TD>.020</TD> <TD>.000</TD> <TD>.020</TD> <TD>.030</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station II2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>-</TD> <TD>.020</TD> <TD>-</TD> <TD>.000</TD> <TD>.000</TD> <TD>.003</TD> <TD>.020</TD> <TD>.020</TD> <TD>.000</TD> <TD>.020</TD> <TD>.020</TD> <TD>.020</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.000</TD> <TD>.000</TD> <TD>-</TD> <TD>.000</TD> <TD>.000</TD> <TD>.000</TD> <TD>.050</TD> <TD>.050</TD> <TD>.020</TD> <TD>.050</TD> <TD>.010</TD> <TD>.010</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Poseljani, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.004</TD> <TD>.004</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>.000</TD> <TD>.020</TD> <TD>.020</TD> <TD>.030</TD> <TD>.030</TD> <TD>.080</TD> <TD>.080</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> NO3-N [mg l-1]*</li>\n
              <BR>\n
              </UL>\n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station I1, 1972-1973</TD></TR>\n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.113</TD> <TD>.068</TD> <TD>.034</TD> <TD>.041</TD> <TD>.057</TD> <TD>-</TD> <TD>.045</TD> <TD>.003</TD> <TD>.079</TD> <TD>.057</TD> <TD>.158</TD> <TD>.102</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station I2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.102</TD> <TD>-</TD> <TD>-</TD> <TD>.170</TD> <TD>.188</TD> <TD>-</TD> <TD>.034</TD> <TD>.004</TD> <TD>.068</TD> <TD>.045</TD> <TD>.136</TD> <TD>.079</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station II2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.041</TD> <TD>-</TD> <TD>-</TD> <TD>.170</TD> <TD>-</TD> <TD>-</TD> <TD>.027</TD> <TD>.005</TD> <TD>.181</TD> <TD>.079</TD> <TD>.136</TD> <TD>.072</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>-</TD> <TD>.057</TD> <TD>.090</TD> <TD>-</TD> <TD>.045</TD> <TD>-</TD> <TD>.027</TD> <TD>.003</TD> <TD>.192</TD> <TD>.045</TD> <TD>.102</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Poseljani, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.045</TD> <TD>.045</TD> <TD>.045</TD> <TD>-</TD> <TD>.000</TD> <TD>-</TD> <TD>.027</TD> <TD>.003</TD> <TD>-</TD> <TD>.045</TD> <TD>-</TD> <TD>.057</TD></TR>\n
              <TR><TD COLSPAN=13>* Converted from the original determination of NO3.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION (6)</B>\n
              \n
              <UL>\n
              <LI> PO4-P [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station I1, 1972-1973</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.008</TD> <TD>.002</TD> <TD>-</TD> <TD>.001</TD> <TD>.002</TD> <TD>-</TD> <TD>.003</TD> <TD>.002</TD> <TD>.006</TD> <TD>.002</TD> <TD>.003</TD> <TD>.007</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station I2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.002</TD> <TD>.000</TD> <TD>-</TD> <TD>.002</TD> <TD>.002</TD> <TD>-</TD> <TD>.003</TD> <TD>.017</TD> <TD>.007</TD> <TD>.000</TD> <TD>.002</TD> <TD>.007</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station II2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.002</TD> <TD>-</TD> <TD>-</TD> <TD>.000</TD> <TD>.014</TD> <TD>-</TD> <TD>.003</TD> <TD>.005</TD> <TD>.003</TD> <TD>.010</TD> <TD>.010</TD> <TD>.007</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.002</TD> <TD>.003</TD> <TD>-</TD> <TD>.002</TD> <TD>.002</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>.003</TD> <TD>.002</TD> <TD>.007</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Poseljani, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.003</TD> <TD>.002</TD> <TD>-</TD> <TD>-</TD> <TD>.012</TD> <TD>-</TD> <TD>-</TD> <TD>.004</TD> <TD>.004</TD> <TD>.002</TD> <TD>.040</TD> <TD>.003</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes (7)\n
              <BR>Scirpus lacustris, Phragmites communis, Typha angustifolia.</li>\n
              <LI> Floating macrophytes: Nymphaea alba, Nuphar luteum, Trapa natans (7).</li>\n
              <LI> Submerged macrophytes: Myriophyllum, Ceratophyllum, Potamogeton spp. (7).</li>\n
              <LI> Phytoplankton (8)\n
              <BR>Cyclotella glomerata, C. Planctonia, Pediastrum, Ceratium hirundinella, Microcystis, Merismopedia, Dinobryon divergens, D. bavaricum.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton: Rotatoria, Cladocera, Copepoda, Protozoa (9).</li>\n
              <LI> Benthos: Chironomidae, Oligochaeta, Bivalvia, Gastropoda (10).</li>\n
              <LI> Fish (11): Alburnus, Cyprinus, Chondrostoma, Anguilla, Salmo, Rutilus, Alosa, Pachychilon, Mugil, Scardinius.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI> Beeton, A. M. (1981)  General introduction.  The Biota and Limnology of Lake Skadar (ed. Karaman, G. S. &amp; Beeton, A. M.), pp. 15-17.  University  of &quot;Veljko Vlahovic&quot;, Smithsonian Institution of Washington, and Centre for Great Lakes Studies/University of Wisconsin, Titograd.</li>\n
              <LI> Lasca, N. P., Radulovic, V., Ristic, R. J. &amp; Cherkauer, D. S. (1981)  Geology, hydrology, climate and bathymetry of Lake Skadar.  Ibid., pp.  17-38.</li>\n
              <LI> Air Ministry Meteorological Office (1958)  Tables of Temperature, Relative Humidity and Precipitation for the World.  Part III.  Her Majesty's Stationery Office, London.</li>\n
              <LI> Beeton, A. M. (1981)  Water masses, thermal conditions and transparency of Lake Skadar.  The Biota and Limnology of Lake Skadar (see above), pp. 38-  55.</li>\n
              <LI> Torke, B. (1981)  Growth rates of crustacean zooplankton in Lake Skadar.  Ibid., pp. 217-219.</li>\n
              <LI> Petrovic, G. (1981)  Chemical investigations of water and sediments of Lake Skadar.  Ibid., pp. 68-96.</li>\n
              <LI> Ristic, J. &amp; Vizi, O. (1981)  Synoptic survey of the dominant macrophytes in Lake Skadar.  Ibid., pp. 117-125.</li>\n
              <LI> Petkovic, S.(1981)  Phytoplankton.  Ibid., pp. 163-189.</li>\n
              <LI> Petkovic, S.(1981)  Zooplankton.  Ibid., pp. 191-199.</li>\n
              <LI> Karaman, G. S. &amp; Nedic, D. (1981)  Zoobenthos of Lake Skadar.  Ibid., pp.  222-246.</li>\n
              <LI> Stein, R. A., Mecom, J. O. &amp; Ivanovic, B. (1981)  Commercial exploitation of fish stocks in Lake Skadar, 1947-1976.  Ibid., pp. 343-354.</li>\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              </HTML>\n
              """
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            "created_at" => "2020-04-23 09:03:37"
            "updated_at" => "2020-06-09 15:35:46"
          ]
          #original: array:18 [
            "id" => 3471
            "lake_id" => 95
            "lake_metadata_id" => 1
            "item_id" => 198
            "author" => null
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            "system_file_name" => "lake_item_3471.html"
            "file_type" => "6"
            "file_size" => 13124
            "group_name_id" => 6
            "file_title" => "Lake Skadar"
            "search_flag" => 0
            "inner_html" => 2
            "html" => """
              \n
              \n
              <H2>LAKE SKADAR</H2>\n
              \n
              <b>A view from lakeside hill</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur09-00.jpg" alt="Photo." width=380 height=258><br>\n
              Photo: CAR & DRIVER\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Yugoslavia; and Albania.</li>\n
              <LI> 42:10N, 19:20E; 5 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>\n
              <BR>\n
              <H3>B. DESCRIPTION</H3></H3>\n
              \n
              <OL>\n
              \n
              Lake Skadar is the largest lake in the Balkan district, situated at the southern end of the Dinaric Alps on the border of Yugoslavia and Albania.  It lies about 100 km to the southeast of the famous scenic town of Dubrovnik on the coast of the Adriatic Sea.  To the southwest of the lake rise high mountains, while to the northeast stretches a wide swamp.  There are many islands in the western part of the lake and a number of spots where ground water spouts up from the bottom (Okos).  The lake is considered to have been formed by dissolution of limestone in a tectonic basin during the Tertiary or Quarternary period.  It is a shallow lake with 8 m maximum depth and 5 m mean depth.\n
              <br>\n
              The Moraca River, which is the largest inflowing stream with cold water heavily loaded with suspended solids, has a great influence upon the transparency and water quality of this lake.  The Bojana River flows out from the south end and drains into the Adriatic Sea.  The phosphate concentration in the lake water is low, and the low transparency is attributed to the large amount of suspended solids in the inflowing water.  The lake is rich in fish and waterfowl fauna.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS (1)</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>372</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>1.93</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>8.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Regulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Normal range of annual water level fluctuation [m]</TD> <TD>2</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>207</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>5,490</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-09-01.</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Bojana R.).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Skadar (3)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=14>Mean temp. [deg C]*1</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>3.9</TD> <TD>5.8</TD> <TD>9.2</TD> <TD>13.1</TD> <TD>18.1</TD> <TD>21.7</TD> <TD>25.0</TD> <TD>24.7</TD> <TD>20.8</TD> <TD>16.1</TD> <TD>10.6</TD> <TD>6.7</TD> <TD>14.7</TD></TR>\n
              <TR><TD COLSPAN=14>Precipitation [mm]*2</TD></TR>\n
              <TR ALIGN="center"><TD>137</TD> <TD>140</TD> <TD>157</TD> <TD>132</TD> <TD>89</TD> <TD>48</TD> <TD>46</TD> <TD>28</TD> <TD>99</TD> <TD>198</TD> <TD>208</TD> <TD>154</TD> <TD>1,436</TD></TR>\n
              <TR><TD COLSPAN=14>*1 13-year mean.  *2 50-year mean.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine: 2,533 hr yr-1.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur09-01.gif" width="271" height="257"></p>\n
              Fig. EUR-09-01<BR>\n
              Bathymetric map (1).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature: Fig. EUR-09-02.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur09-02.gif" width="297" height="231"></p>\n
              Fig. EUR-09-02<BR>\n
              Water temperature [deg C](August 1974-December 1975)(4).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: Only twice in recent years (February 1954 and 1956).</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>The thermocline is not formed.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY [m](5)</B>\n
              <OL>\n
              Radus, 1977: 4.\n
              </OL>\n
              \n
              <B>E2 pH (6)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station I1, 1972-1973</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>7.2</TD> <TD>-</TD> <TD>7.2</TD> <TD>8.2</TD> <TD>7.9</TD> <TD>-</TD> <TD>-</TD> <TD>8.0</TD> <TD>8.0</TD> <TD>8.2</TD> <TD>8.0</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station I2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>7.8</TD> <TD>-</TD> <TD>8.1</TD> <TD>8.1</TD> <TD>8.1</TD> <TD>-</TD> <TD>-</TD> <TD>8.2</TD> <TD>8.2</TD> <TD>8.1</TD> <TD>8.0</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station II2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>7.8</TD> <TD>-</TD> <TD>7.8</TD> <TD>7.5</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>8.0</TD> <TD>8.2</TD> <TD>8.5</TD> <TD>8.2</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III1, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>7.8</TD> <TD>-</TD> <TD>8.2</TD> <TD>8.1</TD> <TD>8.1</TD> <TD>-</TD> <TD>-</TD> <TD>8.2</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>8.1</TD> <TD>-</TD> <TD>8.1</TD> <TD>8.2</TD> <TD>8.2</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>8.0</TD> <TD>8.3</TD> <TD>-</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Poseljani, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>8.2</TD> <TD>-</TD> <TD>8.2</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>8.0</TD> <TD>8.0</TD> <TD>8.1</TD> <TD>-</TD> <TD>-</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E7 NITROGEN CONCENTRATION (6)</B>\n
              \n
              <UL>\n
              <LI> NH4-N [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station I1, 1972-1973</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.000</TD> <TD>.000</TD> <TD>-</TD> <TD>.004</TD> <TD>.080</TD> <TD>.002</TD> <TD>.020</TD> <TD>.020</TD> <TD>.030</TD> <TD>.030</TD> <TD>.010</TD> <TD>.240</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station I2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.010</TD> <TD>.000</TD> <TD>-</TD> <TD>.000</TD> <TD>.030</TD> <TD>.000</TD> <TD>.016</TD> <TD>.030</TD> <TD>.020</TD> <TD>.000</TD> <TD>.020</TD> <TD>.030</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station II2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>-</TD> <TD>.020</TD> <TD>-</TD> <TD>.000</TD> <TD>.000</TD> <TD>.003</TD> <TD>.020</TD> <TD>.020</TD> <TD>.000</TD> <TD>.020</TD> <TD>.020</TD> <TD>.020</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.000</TD> <TD>.000</TD> <TD>-</TD> <TD>.000</TD> <TD>.000</TD> <TD>.000</TD> <TD>.050</TD> <TD>.050</TD> <TD>.020</TD> <TD>.050</TD> <TD>.010</TD> <TD>.010</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Poseljani, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.004</TD> <TD>.004</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>.000</TD> <TD>.020</TD> <TD>.020</TD> <TD>.030</TD> <TD>.030</TD> <TD>.080</TD> <TD>.080</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> NO3-N [mg l-1]*</li>\n
              <BR>\n
              </UL>\n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station I1, 1972-1973</TD></TR>\n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.113</TD> <TD>.068</TD> <TD>.034</TD> <TD>.041</TD> <TD>.057</TD> <TD>-</TD> <TD>.045</TD> <TD>.003</TD> <TD>.079</TD> <TD>.057</TD> <TD>.158</TD> <TD>.102</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station I2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.102</TD> <TD>-</TD> <TD>-</TD> <TD>.170</TD> <TD>.188</TD> <TD>-</TD> <TD>.034</TD> <TD>.004</TD> <TD>.068</TD> <TD>.045</TD> <TD>.136</TD> <TD>.079</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station II2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.041</TD> <TD>-</TD> <TD>-</TD> <TD>.170</TD> <TD>-</TD> <TD>-</TD> <TD>.027</TD> <TD>.005</TD> <TD>.181</TD> <TD>.079</TD> <TD>.136</TD> <TD>.072</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>-</TD> <TD>.057</TD> <TD>.090</TD> <TD>-</TD> <TD>.045</TD> <TD>-</TD> <TD>.027</TD> <TD>.003</TD> <TD>.192</TD> <TD>.045</TD> <TD>.102</TD> <TD>-</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Poseljani, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.045</TD> <TD>.045</TD> <TD>.045</TD> <TD>-</TD> <TD>.000</TD> <TD>-</TD> <TD>.027</TD> <TD>.003</TD> <TD>-</TD> <TD>.045</TD> <TD>-</TD> <TD>.057</TD></TR>\n
              <TR><TD COLSPAN=13>* Converted from the original determination of NO3.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION (6)</B>\n
              \n
              <UL>\n
              <LI> PO4-P [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station I1, 1972-1973</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.008</TD> <TD>.002</TD> <TD>-</TD> <TD>.001</TD> <TD>.002</TD> <TD>-</TD> <TD>.003</TD> <TD>.002</TD> <TD>.006</TD> <TD>.002</TD> <TD>.003</TD> <TD>.007</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station I2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.002</TD> <TD>.000</TD> <TD>-</TD> <TD>.002</TD> <TD>.002</TD> <TD>-</TD> <TD>.003</TD> <TD>.017</TD> <TD>.007</TD> <TD>.000</TD> <TD>.002</TD> <TD>.007</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station II2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.002</TD> <TD>-</TD> <TD>-</TD> <TD>.000</TD> <TD>.014</TD> <TD>-</TD> <TD>.003</TD> <TD>.005</TD> <TD>.003</TD> <TD>.010</TD> <TD>.010</TD> <TD>.007</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Station III2, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.002</TD> <TD>.003</TD> <TD>-</TD> <TD>.002</TD> <TD>.002</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>-</TD> <TD>.003</TD> <TD>.002</TD> <TD>.007</TD></TR>\n
              \n
              <TR><TD COLSPAN=13>Poseljani, 1972-1973</TD></TR>\n
              <TR ALIGN="center"><TD> </TD> <TD>.003</TD> <TD>.002</TD> <TD>-</TD> <TD>-</TD> <TD>.012</TD> <TD>-</TD> <TD>-</TD> <TD>.004</TD> <TD>.004</TD> <TD>.002</TD> <TD>.040</TD> <TD>.003</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes (7)\n
              <BR>Scirpus lacustris, Phragmites communis, Typha angustifolia.</li>\n
              <LI> Floating macrophytes: Nymphaea alba, Nuphar luteum, Trapa natans (7).</li>\n
              <LI> Submerged macrophytes: Myriophyllum, Ceratophyllum, Potamogeton spp. (7).</li>\n
              <LI> Phytoplankton (8)\n
              <BR>Cyclotella glomerata, C. Planctonia, Pediastrum, Ceratium hirundinella, Microcystis, Merismopedia, Dinobryon divergens, D. bavaricum.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton: Rotatoria, Cladocera, Copepoda, Protozoa (9).</li>\n
              <LI> Benthos: Chironomidae, Oligochaeta, Bivalvia, Gastropoda (10).</li>\n
              <LI> Fish (11): Alburnus, Cyprinus, Chondrostoma, Anguilla, Salmo, Rutilus, Alosa, Pachychilon, Mugil, Scardinius.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI> Beeton, A. M. (1981)  General introduction.  The Biota and Limnology of Lake Skadar (ed. Karaman, G. S. &amp; Beeton, A. M.), pp. 15-17.  University  of &quot;Veljko Vlahovic&quot;, Smithsonian Institution of Washington, and Centre for Great Lakes Studies/University of Wisconsin, Titograd.</li>\n
              <LI> Lasca, N. P., Radulovic, V., Ristic, R. J. &amp; Cherkauer, D. S. (1981)  Geology, hydrology, climate and bathymetry of Lake Skadar.  Ibid., pp.  17-38.</li>\n
              <LI> Air Ministry Meteorological Office (1958)  Tables of Temperature, Relative Humidity and Precipitation for the World.  Part III.  Her Majesty's Stationery Office, London.</li>\n
              <LI> Beeton, A. M. (1981)  Water masses, thermal conditions and transparency of Lake Skadar.  The Biota and Limnology of Lake Skadar (see above), pp. 38-  55.</li>\n
              <LI> Torke, B. (1981)  Growth rates of crustacean zooplankton in Lake Skadar.  Ibid., pp. 217-219.</li>\n
              <LI> Petrovic, G. (1981)  Chemical investigations of water and sediments of Lake Skadar.  Ibid., pp. 68-96.</li>\n
              <LI> Ristic, J. &amp; Vizi, O. (1981)  Synoptic survey of the dominant macrophytes in Lake Skadar.  Ibid., pp. 117-125.</li>\n
              <LI> Petkovic, S.(1981)  Phytoplankton.  Ibid., pp. 163-189.</li>\n
              <LI> Petkovic, S.(1981)  Zooplankton.  Ibid., pp. 191-199.</li>\n
              <LI> Karaman, G. S. &amp; Nedic, D. (1981)  Zoobenthos of Lake Skadar.  Ibid., pp.  222-246.</li>\n
              <LI> Stein, R. A., Mecom, J. O. &amp; Ivanovic, B. (1981)  Commercial exploitation of fish stocks in Lake Skadar, 1947-1976.  Ibid., pp. 343-354.</li>\n
              </OL>\n
              \n
              \n
              \n
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            "html" => """
              \n
              \n
              <H2>LOCH NESS</H2>\n
              \n
              <b>A lake view with Urquhart castle</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur08-00.jpg" alt="Photo." width=380 height=258><br>\n
              Photo: M. Kumagai\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Highland, UK.</li>\n
              <LI> 57:15N, 4:30W; 15.8 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>\n
              <BR>\n
              <H3>B. DESCRIPTION</H3></H3>\n
              \n
              <OL>\n
              \n
              Loch Ness is an extremely narrow and long lake, extending from the northeast to the southwest in the Inverness area of north Scotland.  The lake is about 39 km long, but only 1.5 km wide, and has a maximum depth of 230 m and a mean depth of 132 m.  Its water volume is the largest, and the surface area is the second largest next to Loch Lomond, in this country.  The lake water flows out to Moray Firth through the Ness River.  It is known as one of the most scenic lakes of this country, with an old ruined castle on the lakeside and surrounding mountain view.  The lake is also so famous for the "Nessy", a world-famous unidentified organism.  Investigations on Nessy have been carried out since 1962 by the Loch Ness Investigation, a voluntary organization with some scientists.\n
              <br>\n
              The drainage basin is still rich in woodlands and grasslands, having a low population density of 1.8 km-2.  Nutrients inflow to the lake, therefore, is still in low level and the water remains oligotrophic and transparent.  However, it is anxious that eutrophication may be caused by many tourists attracted by Nessy and by increasing activity of residents in the drainage basin.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>56</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>7.45</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>230</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>132</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Regulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>86</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>2.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>1,775</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric ma: Fig. EUR-08-01.</li>\n
              <LI> Names of main islands: None.</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Ness R.)(1).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Achnashellach*1 (3)*2</li>\n
              </UL><BR>\n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=26>Mean temp. [deg C]</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>2.8</TD> <TD>3.2</TD> <TD>5.2</TD> <TD>6.9</TD> <TD>10.1</TD> <TD>12.4</TD> <TD>13.8</TD> <TD>13.6</TD> <TD>11.6</TD> <TD>8.7</TD> <TD>5.7</TD> <TD>4.1</TD> <TD>8.2</TD></TR>\n
              <TR><TD COLSPAN=26>Precipitation [mm]</TD></TR>\n
              <TR ALIGN="center"><TD>232</TD> <TD>177</TD> <TD>127</TD> <TD>156</TD> <TD>93</TD> <TD>114</TD> <TD>148</TD> <TD>150</TD> <TD>189</TD> <TD>234</TD> <TD>196</TD> <TD>242</TD> <TD>2,058</TD></TR>\n
              <TR><TD COLSPAN=26>*1 Circa 50 km west of the lake.</TD></TR>\n
              <TR><TD COLSPAN=26>*2 13-year mean.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine: 1,374 hr yr-1 (3).</li>\n
              <LI> Snowfall (lake side): 15-20 day yr-1 (2).</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur08-01.gif" width="262" height="358"><p>\n
              Fig. EUR-08-01<BR>\n
              Bathymetric map (2).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature [deg C](2)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>December 1977-November 1978</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0</TD> <TD>5.7</TD> <TD>5.6</TD> <TD>5.6</TD> <TD>6.3</TD> <TD>7.5</TD> <TD>10.0</TD> <TD>12.5</TD> <TD>13.5</TD> <TD>12.5</TD> <TD>10.6</TD> <TD>9.8</TD> <TD>8.0</TD></TR>\n
              <TR ALIGN="center"><TD>75</TD> <TD>5.7</TD> <TD>5.6</TD> <TD>5.6</TD> <TD>6.3</TD> <TD>5.8</TD> <TD>6.6</TD> <TD>7.5</TD> <TD>6.3</TD> <TD>6.5</TD> <TD>6.7</TD> <TD>7.3</TD> <TD>8.0</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: None.</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>The thermocline is formed from May to October.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY [m](4)</B>\n
              <ol>\n
              November 1977-October 1978: 3.6-4.6.\n
              </ol>\n
              \n
              <B>E2 pH (4)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>November 1977-October 1978</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>-</TD> <TD>6.7</TD> <TD>6.7</TD> <TD>-</TD> <TD>6.8</TD> <TD>-</TD> <TD>6.6</TD> <TD>6.5</TD> <TD>-</TD> <TD>6.6</TD> <TD>-</TD> <TD>6.8</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION [micro g l-1](5)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>November 1977-October 1978</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>-</TD> <TD>0.2</TD> <TD>0.2</TD> <TD>-</TD> <TD>0.3</TD> <TD>-</TD> <TD>1.6</TD> <TD>1.7</TD> <TD>-</TD> <TD>0.9</TD> <TD>-</TD> <TD>0.3</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E7 NITROGEN CONCENTRATION (4)</B>\n
              \n
              <UL>\n
              <LI> NO2-N+NO3-N [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>November 1977-October 1978</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>-</TD> <TD>0.12</TD> <TD>0.10</TD> <TD>-</TD> <TD>0.09</TD> <TD>-</TD> <TD>0.09</TD> <TD>0.09</TD> <TD>-</TD> <TD>-</TD> <TD>0.14</TD> <TD>0.13</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION (4)</B>\n
              \n
              <UL>\n
              <LI> PO4-P [micro g l-1]\n
              <BR>November 1977-October 1978: <10.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes (6)\n
              <BR>Scutellaria galericum, Veronica scutellata, Carex rostrata, Menyanthes trifoliata, Mentha aquatica, Potentilla palustris.</li>\n
              <LI> Submerged macrophytes: Myriophyllum alterniflorum (6).</li>\n
              <LI> Phytoplankton (5)\n
              <BR>Oscillatoria sp., Elakatothrix sp., Melosira sp., Rhizosolenia eriensis, Asterionella formosa,  Tabellaria fenestrata, T. flocculosa.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton (7)\n
              <BR>Daphnia hyalina, Bosmina coregoni, Diaptomus gracilis, Cyclops abyssorum.</li>\n
              <LI> Benthos (8, 9)\n
              <BR>Lumbriculus variegatus, Cloeon simile, Amphinemura sulcicollis, Chloroperla torrentium, Sigara dosalis, Stylaria lacustris, Asellus aquaticus, Nemoura avicularis.</li>\n
              <LI> Fish (10)\n
              <BR>Lampetra planeri, Salmo salar, S. trutta, Salvelinus alpinus, Esox lucius, Anguilla anguilla, Gasterosteus aculeatus.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur08-02.gif" width="363" height="151"></p>\n
              Fig. EUR-08-02<BR>\n
              Seasonal changes in total crustacean zooplankton [1,000 cells m-3], November 1977-October 1978 (7).\n
              </OL>\n
              <br>\n
              \n
              \n
              \n
              <BR>\n
              <H3>G. SOCIO-ECONOMIC CONDITIONS (1)</H3>\n
              \n
              <B>G1 LAND USE IN THE CATCHMENT AREA</B>\n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR><TH></TH> <TH>Area [km2]</TH> <TH>[%]</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Natural landscape</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Woody vegetation</TD> <TD>247.9</TD> <TD>14.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Rough</TD> <TD>1,354</TD> <TD>78.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Agricultural land</TD> <TD>32.6</TD> <TD>1.9</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Urban</TD> <TD>7.5</TD> <TD>0.4</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Others</TD> <TD>86.2</TD> <TD>5.1</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Total</TD> <TD>1,728.2</TD> <TD>100.0</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>G3 POPULATION IN THE CATCHMENT AREA</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR ALIGN="center"><TD></TD></TR>\n
              <TR><TH></TH> <TH>Population</TH> <TH>Population density [km-2]</TH> <TH>Major cities (population)</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>3,100</TD> <TD>1.8</TD> <TD>Inverness</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>J. WASTEWATER TREATMENTS</H3>\n
              \n
              <B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B>\n
              <OL>\n
              b) No sources of significant pollution.\n
              </OL>\n
              \n
              <B>J3 SANITARY FACILITIES AND SEWERAGE</B>\n
              \n
              <UL>\n
              <LI> Municipal wastewater treatment systems\n
              <BR>No. of plants: 8.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI> Maitland, P. S. (1981)  Introduction and catchment analysis.  The Ecology of Scotland's Largest Lochs, Lomond, Awe, Ness, Morar and Shiel (ed.  Maitland, P. S.), pp. 1-28.  Dr. W. Junk Publishers, The Hague.</li>\n
              <LI> Smith, I. R., Lyle, A. A. & Rosie, A. J. (1981)  Comparative physical limnology.  Ibid., pp. 29-66.</li>\n
              <LI> Muller, M. J. (1982)  Selected Climatic Data for a Global Set of Standard Stations for Vegetation Science.  306 pp.  Dr. W. Junk Publishers, The Hague.</li>\n
              <LI> Bailley-Watts, A. E. &amp; Duncan, P. (1981)  Chemical characterisation, a one-year comparative study.  The Ecology of Scotland's Largest Lochs, Lomond, Awe, Ness, Morar and Shiel (see above), pp. 67-90.</li>\n
              <LI> ---. (1981)  The phytoplankton.  Ibid., pp. 91-118.</li>\n
              <LI> ---. (1981)  A review of macrophyte studies.  Ibid., pp. 119-134.</li>\n
              <LI> Maitland, P. S., Smith, B. D. &amp; Dennis, G. M. (1981)  The crustacean zooplankton.  Ibid., pp. 135-154.</li>\n
              <LI> Smith, B. D., Maitland, P. S., Young, M. R. &amp; Carr, M. J. (1981)  Ibid., pp. 155-204.</li>\n
              <LI> Smith, B. D., Cuttle, S. P. &amp; Maitland, P. S. (1981)  The profundal zoobenthos.  Ibid., pp. 205-222.</li>\n
              <LI> Maitland, P. S., Smith, B. D. &amp; Adair, S. M. (1981)  The fish and fisheries.  Ibid., pp. 223-253.</li>\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              """
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            "file_title" => "Loch Ness"
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              \n
              \n
              <H2>LOCH NESS</H2>\n
              \n
              <b>A lake view with Urquhart castle</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur08-00.jpg" alt="Photo." width=380 height=258><br>\n
              Photo: M. Kumagai\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Highland, UK.</li>\n
              <LI> 57:15N, 4:30W; 15.8 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>\n
              <BR>\n
              <H3>B. DESCRIPTION</H3></H3>\n
              \n
              <OL>\n
              \n
              Loch Ness is an extremely narrow and long lake, extending from the northeast to the southwest in the Inverness area of north Scotland.  The lake is about 39 km long, but only 1.5 km wide, and has a maximum depth of 230 m and a mean depth of 132 m.  Its water volume is the largest, and the surface area is the second largest next to Loch Lomond, in this country.  The lake water flows out to Moray Firth through the Ness River.  It is known as one of the most scenic lakes of this country, with an old ruined castle on the lakeside and surrounding mountain view.  The lake is also so famous for the "Nessy", a world-famous unidentified organism.  Investigations on Nessy have been carried out since 1962 by the Loch Ness Investigation, a voluntary organization with some scientists.\n
              <br>\n
              The drainage basin is still rich in woodlands and grasslands, having a low population density of 1.8 km-2.  Nutrients inflow to the lake, therefore, is still in low level and the water remains oligotrophic and transparent.  However, it is anxious that eutrophication may be caused by many tourists attracted by Nessy and by increasing activity of residents in the drainage basin.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>56</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>7.45</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>230</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>132</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Regulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>86</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>2.8</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>1,775</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric ma: Fig. EUR-08-01.</li>\n
              <LI> Names of main islands: None.</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Ness R.)(1).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Achnashellach*1 (3)*2</li>\n
              </UL><BR>\n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=26>Mean temp. [deg C]</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>2.8</TD> <TD>3.2</TD> <TD>5.2</TD> <TD>6.9</TD> <TD>10.1</TD> <TD>12.4</TD> <TD>13.8</TD> <TD>13.6</TD> <TD>11.6</TD> <TD>8.7</TD> <TD>5.7</TD> <TD>4.1</TD> <TD>8.2</TD></TR>\n
              <TR><TD COLSPAN=26>Precipitation [mm]</TD></TR>\n
              <TR ALIGN="center"><TD>232</TD> <TD>177</TD> <TD>127</TD> <TD>156</TD> <TD>93</TD> <TD>114</TD> <TD>148</TD> <TD>150</TD> <TD>189</TD> <TD>234</TD> <TD>196</TD> <TD>242</TD> <TD>2,058</TD></TR>\n
              <TR><TD COLSPAN=26>*1 Circa 50 km west of the lake.</TD></TR>\n
              <TR><TD COLSPAN=26>*2 13-year mean.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine: 1,374 hr yr-1 (3).</li>\n
              <LI> Snowfall (lake side): 15-20 day yr-1 (2).</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur08-01.gif" width="262" height="358"><p>\n
              Fig. EUR-08-01<BR>\n
              Bathymetric map (2).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature [deg C](2)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>December 1977-November 1978</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0</TD> <TD>5.7</TD> <TD>5.6</TD> <TD>5.6</TD> <TD>6.3</TD> <TD>7.5</TD> <TD>10.0</TD> <TD>12.5</TD> <TD>13.5</TD> <TD>12.5</TD> <TD>10.6</TD> <TD>9.8</TD> <TD>8.0</TD></TR>\n
              <TR ALIGN="center"><TD>75</TD> <TD>5.7</TD> <TD>5.6</TD> <TD>5.6</TD> <TD>6.3</TD> <TD>5.8</TD> <TD>6.6</TD> <TD>7.5</TD> <TD>6.3</TD> <TD>6.5</TD> <TD>6.7</TD> <TD>7.3</TD> <TD>8.0</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: None.</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>The thermocline is formed from May to October.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY [m](4)</B>\n
              <ol>\n
              November 1977-October 1978: 3.6-4.6.\n
              </ol>\n
              \n
              <B>E2 pH (4)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>November 1977-October 1978</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>-</TD> <TD>6.7</TD> <TD>6.7</TD> <TD>-</TD> <TD>6.8</TD> <TD>-</TD> <TD>6.6</TD> <TD>6.5</TD> <TD>-</TD> <TD>6.6</TD> <TD>-</TD> <TD>6.8</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION [micro g l-1](5)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>November 1977-October 1978</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>-</TD> <TD>0.2</TD> <TD>0.2</TD> <TD>-</TD> <TD>0.3</TD> <TD>-</TD> <TD>1.6</TD> <TD>1.7</TD> <TD>-</TD> <TD>0.9</TD> <TD>-</TD> <TD>0.3</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E7 NITROGEN CONCENTRATION (4)</B>\n
              \n
              <UL>\n
              <LI> NO2-N+NO3-N [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>November 1977-October 1978</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>-</TD> <TD>0.12</TD> <TD>0.10</TD> <TD>-</TD> <TD>0.09</TD> <TD>-</TD> <TD>0.09</TD> <TD>0.09</TD> <TD>-</TD> <TD>-</TD> <TD>0.14</TD> <TD>0.13</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION (4)</B>\n
              \n
              <UL>\n
              <LI> PO4-P [micro g l-1]\n
              <BR>November 1977-October 1978: <10.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes (6)\n
              <BR>Scutellaria galericum, Veronica scutellata, Carex rostrata, Menyanthes trifoliata, Mentha aquatica, Potentilla palustris.</li>\n
              <LI> Submerged macrophytes: Myriophyllum alterniflorum (6).</li>\n
              <LI> Phytoplankton (5)\n
              <BR>Oscillatoria sp., Elakatothrix sp., Melosira sp., Rhizosolenia eriensis, Asterionella formosa,  Tabellaria fenestrata, T. flocculosa.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton (7)\n
              <BR>Daphnia hyalina, Bosmina coregoni, Diaptomus gracilis, Cyclops abyssorum.</li>\n
              <LI> Benthos (8, 9)\n
              <BR>Lumbriculus variegatus, Cloeon simile, Amphinemura sulcicollis, Chloroperla torrentium, Sigara dosalis, Stylaria lacustris, Asellus aquaticus, Nemoura avicularis.</li>\n
              <LI> Fish (10)\n
              <BR>Lampetra planeri, Salmo salar, S. trutta, Salvelinus alpinus, Esox lucius, Anguilla anguilla, Gasterosteus aculeatus.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur08-02.gif" width="363" height="151"></p>\n
              Fig. EUR-08-02<BR>\n
              Seasonal changes in total crustacean zooplankton [1,000 cells m-3], November 1977-October 1978 (7).\n
              </OL>\n
              <br>\n
              \n
              \n
              \n
              <BR>\n
              <H3>G. SOCIO-ECONOMIC CONDITIONS (1)</H3>\n
              \n
              <B>G1 LAND USE IN THE CATCHMENT AREA</B>\n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR><TH></TH> <TH>Area [km2]</TH> <TH>[%]</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Natural landscape</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Woody vegetation</TD> <TD>247.9</TD> <TD>14.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Rough</TD> <TD>1,354</TD> <TD>78.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Agricultural land</TD> <TD>32.6</TD> <TD>1.9</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Urban</TD> <TD>7.5</TD> <TD>0.4</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Others</TD> <TD>86.2</TD> <TD>5.1</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Total</TD> <TD>1,728.2</TD> <TD>100.0</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>G3 POPULATION IN THE CATCHMENT AREA</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR ALIGN="center"><TD></TD></TR>\n
              <TR><TH></TH> <TH>Population</TH> <TH>Population density [km-2]</TH> <TH>Major cities (population)</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>3,100</TD> <TD>1.8</TD> <TD>Inverness</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>J. WASTEWATER TREATMENTS</H3>\n
              \n
              <B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B>\n
              <OL>\n
              b) No sources of significant pollution.\n
              </OL>\n
              \n
              <B>J3 SANITARY FACILITIES AND SEWERAGE</B>\n
              \n
              <UL>\n
              <LI> Municipal wastewater treatment systems\n
              <BR>No. of plants: 8.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI> Maitland, P. S. (1981)  Introduction and catchment analysis.  The Ecology of Scotland's Largest Lochs, Lomond, Awe, Ness, Morar and Shiel (ed.  Maitland, P. S.), pp. 1-28.  Dr. W. Junk Publishers, The Hague.</li>\n
              <LI> Smith, I. R., Lyle, A. A. & Rosie, A. J. (1981)  Comparative physical limnology.  Ibid., pp. 29-66.</li>\n
              <LI> Muller, M. J. (1982)  Selected Climatic Data for a Global Set of Standard Stations for Vegetation Science.  306 pp.  Dr. W. Junk Publishers, The Hague.</li>\n
              <LI> Bailley-Watts, A. E. &amp; Duncan, P. (1981)  Chemical characterisation, a one-year comparative study.  The Ecology of Scotland's Largest Lochs, Lomond, Awe, Ness, Morar and Shiel (see above), pp. 67-90.</li>\n
              <LI> ---. (1981)  The phytoplankton.  Ibid., pp. 91-118.</li>\n
              <LI> ---. (1981)  A review of macrophyte studies.  Ibid., pp. 119-134.</li>\n
              <LI> Maitland, P. S., Smith, B. D. &amp; Dennis, G. M. (1981)  The crustacean zooplankton.  Ibid., pp. 135-154.</li>\n
              <LI> Smith, B. D., Maitland, P. S., Young, M. R. &amp; Carr, M. J. (1981)  Ibid., pp. 155-204.</li>\n
              <LI> Smith, B. D., Cuttle, S. P. &amp; Maitland, P. S. (1981)  The profundal zoobenthos.  Ibid., pp. 205-222.</li>\n
              <LI> Maitland, P. S., Smith, B. D. &amp; Adair, S. M. (1981)  The fish and fisheries.  Ibid., pp. 223-253.</li>\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
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              \n
              \n
              <H2>LUNZER SEE</H2>\n
              \n
              <b>A view of the whole lake</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-00.jpg" alt="Photo." width=380 height=256><br>\n
              Photo: H. Loffler\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Nieder-Osterreich, Austria.</li>\n
              <LI> 47:51N, 15:04E; 608 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>B. DESCRIPTION</H3>\n
              \n
              <OL>\n
              \n
              Lunzer Untersee (Lower Lunz Lake) is of glacial origin, and located approximately 120 km southwest of Vienna.  There are two small neighboring lakes, Mittelsee (Middle Lake) and Obersee (Upper Lake) in the upstream of the Seebach, the main inflowing river to Untersee.  The lake is only 0.7 km2 wide, has a maximum depth of 33.7 m, and a fairly short residence time (0.7 year).  The nutritional level of the lake water is still oligotrophic, but the littoral zone has recently been eutrophicated considerably, with remarkable changes in the aquatic flora.\n
              <br>\n
              Ninety percent or more of the total drainage basin area consist of karstic plateau and the forests of Norway spruce and European beech.  The density of year-round population in the drainage basin is low (11 km-2), but summer visitors may amount to 8,000 day-1 at the maximum.  Domestic waste water of this district has been diverted to preserve the quality of the lake water.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS (Q)</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>1</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>0.013</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>33.7</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>20.0</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Unregulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>4.2</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>0.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>27</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL (Q)</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-10-01.</li>\n
              <LI> Names of main islands: None.</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Seebach-Ausrinn R.).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC (Q)</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Lunz Biological Station*</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Mean temp. [deg C]</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>-4.5</TD> <TD>-2.1</TD> <TD>1.9</TD> <TD>6.6</TD> <TD>11.1</TD> <TD>14.3</TD> <TD>16.1</TD> <TD>15.4</TD> <TD>12.7</TD> <TD>7.5</TD> <TD>2.2</TD> <TD>-1.6</TD> <TD>6.6</TD></TR>\n
              <TR><TD COLSPAN=13>Precipitation [mm]</TD></TR>\n
              <TR ALIGN="center"><TD>108</TD> <TD>121</TD> <TD>109</TD> <TD>132</TD> <TD>148</TD> <TD>200</TD> <TD>243</TD> <TD>193</TD> <TD>116</TD> <TD>117</TD> <TD>107</TD> <TD>114</TD> <TD>1,706</TD></TR>\n
              <TR><TD COLSPAN=13>* 20-year mean.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine (1927-1948): 1,312 hr yr-1.</li>\n
              <LI> Snowfall\n
              <BR>Period of snowfall (1927-1948): 1 November-15 April.  Depth of maximum snow accumulation (1981): 1.25 m.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-01.gif" width="419" height="224"></p>\n
              Fig. EUR-10-01<BR>\n
              Bathymetric map (Q).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature [deg C](Q)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station 1, 1981</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>1</TD> <TD>2.4</TD> <TD>2.5</TD> <TD>4.5</TD> <TD>7.6</TD> <TD>10.7</TD> <TD>12.9</TD> <TD>11.9</TD> <TD>13.9</TD> <TD>12.4</TD> <TD>9.8</TD> <TD>5.8</TD> <TD>2.6</TD></TR>\n
              <TR ALIGN="center"><TD>5</TD> <TD>3.6</TD> <TD>3.2</TD> <TD>4.0</TD> <TD>7.6</TD> <TD>9.4</TD> <TD>11.3</TD> <TD>11.5</TD> <TD>13.7</TD> <TD>12.1</TD> <TD>9.8</TD> <TD>5.8</TD> <TD>2.7</TD></TR>\n
              <TR ALIGN="center"><TD>10</TD> <TD>3.6</TD> <TD>3.4</TD> <TD>3.9</TD> <TD>6.3</TD> <TD>7.6</TD> <TD>9.4</TD> <TD>9.8</TD> <TD>11.0</TD> <TD>10.8</TD> <TD>9.8</TD> <TD>5.8</TD> <TD>2.8</TD></TR>\n
              <TR ALIGN="center"><TD>15</TD> <TD>3.6</TD> <TD>3.4</TD> <TD>3.7</TD> <TD>5.2</TD> <TD>5.6</TD> <TD>6.7</TD> <TD>9.0</TD> <TD>9.0</TD> <TD>8.8</TD> <TD>9.8</TD> <TD>5.8</TD> <TD>3.0</TD></TR>\n
              <TR ALIGN="center"><TD>20</TD> <TD>3.6</TD> <TD>3.4</TD> <TD>3.7</TD> <TD>4.6</TD> <TD>5.0</TD> <TD>5.4</TD> <TD>5.8</TD> <TD>5.5</TD> <TD>5.8</TD> <TD>5.8</TD> <TD>5.8</TD> <TD>3.0</TD></TR>\n
              <TR ALIGN="center"><TD>30</TD> <TD>3.9</TD> <TD>3.4</TD> <TD>3.7</TD> <TD>4.2</TD> <TD>4.5</TD> <TD>4.6</TD> <TD>5.0</TD> <TD>4.9</TD> <TD>4.9</TD> <TD>5.0</TD> <TD>5.7</TD> <TD>3.5</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: March-December.</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>The thermocline is formed from middle May to early October.  Strong effect of flushing by the tributary Seebach.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY: Fig. EUR-10-02.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-02.gif" width="404" height="147"></p>\n
              Fig. EUR-10-02<BR>\n
              Seasonal trend of transparency [m], Station 1, 1981 (2).\n
              </OL>\n
              <br>\n
              \n
              <B>E2 pH (1)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station 1, 1981</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>S*</TD> <TD>7.7</TD> <TD>7.5</TD> <TD>7.7</TD> <TD>7.6</TD> <TD>7.6</TD> <TD>7.9</TD> <TD>7.7</TD> <TD>7.4</TD> <TD>7.4</TD> <TD>7.4</TD> <TD>7.2</TD> <TD>7.7</TD></TR>\n
              <TR><TD COLSPAN=13>* Surface.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E4 DO [mg l-1]</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station 1, 1981</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>1</TD> <TD>10.8</TD> <TD>12.4</TD> <TD>13.9</TD> <TD>15.1</TD> <TD>14.7</TD> <TD>12.3</TD> <TD>11.4</TD> <TD>11.5</TD> <TD>12.0</TD> <TD>12.2</TD> <TD>11.7</TD> <TD>11.7</TD></TR>\n
              <TR ALIGN="center"><TD>5</TD> <TD>10.8</TD> <TD>12.4</TD> <TD>14.7</TD> <TD>14.9</TD> <TD>14.8</TD> <TD>11.8</TD> <TD>11.9</TD> <TD>11.7</TD> <TD>12.4</TD> <TD>12.6</TD> <TD>10.3</TD> <TD>11.5</TD></TR>\n
              <TR ALIGN="center"><TD>10</TD> <TD>10.9</TD> <TD>12.2</TD> <TD>13.8</TD> <TD>15.5</TD> <TD>15.7</TD> <TD>12.3</TD> <TD>11.7</TD> <TD>12.1</TD> <TD>11.8</TD> <TD>12.6</TD> <TD>9.9</TD> <TD>11.8</TD></TR>\n
              <TR ALIGN="center"><TD>15</TD> <TD>10.9</TD> <TD>12.2</TD> <TD>12.8</TD> <TD>13.9</TD> <TD>13.9</TD> <TD>12.0</TD> <TD>11.9</TD> <TD>11.5</TD> <TD>11.4</TD> <TD>12.2</TD> <TD>10.1</TD> <TD>11.4</TD></TR>\n
              <TR ALIGN="center"><TD>20</TD> <TD>10.9</TD> <TD>11.9</TD> <TD>12.7</TD> <TD>12.6</TD> <TD>12.0</TD> <TD>10.2</TD> <TD>9.5</TD> <TD>8.9</TD> <TD>9.1</TD> <TD>9.3</TD> <TD>9.9</TD> <TD>11.4</TD></TR>\n
              <TR ALIGN="center"><TD>30</TD> <TD>10.9</TD> <TD>11.1</TD> <TD>10.8</TD> <TD>11.2</TD> <TD>9.8</TD> <TD>6.7</TD> <TD>6.0</TD> <TD>5.1</TD> <TD>3.5</TD> <TD>2.9</TD> <TD>9.5</TD> <TD>11.2</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION [mg m-2](Q)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>1975</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>  0-20*</TD> <TD>0.77</TD> <TD>1.65</TD> <TD>0.73</TD> <TD>3.1</TD> <TD>5.8</TD> <TD>1.6</TD> <TD>1.3</TD> <TD>1.2</TD> <TD>2.6</TD> <TD>2.4</TD> <TD>1.2</TD> <TD>1.4</TD></TR>\n
              <TR><TD COLSPAN=13>* Integrated sample.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION</B>\n
              \n
              <UL>\n
              <LI> Total-P [micro g l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station 1, 1981</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>1</TD> <TD>5.3</TD> <TD>14.0</TD> <TD>5.0</TD> <TD>7.0</TD> <TD>5.3</TD> <TD>6.0</TD> <TD>5.7</TD> <TD>8.0</TD> <TD>7.3</TD> <TD>5.7</TD> <TD>5.7</TD> <TD>6.7</TD></TR>\n
              <TR ALIGN="center"><TD>5</TD> <TD>5.7</TD> <TD>8.3</TD> <TD>7.0</TD> <TD>9.0</TD> <TD>5.3</TD> <TD>8.7</TD> <TD>7.7</TD> <TD>8.0</TD> <TD>10.3</TD> <TD>8.0</TD> <TD>5.0</TD> <TD>6.7</TD></TR>\n
              <TR ALIGN="center"><TD>10</TD> <TD>5.7</TD> <TD>8.7</TD> <TD>6.3</TD> <TD>7.3</TD> <TD>6.0</TD> <TD>5.0</TD> <TD>6.7</TD> <TD>5.7</TD> <TD>4.0</TD> <TD>6.3</TD> <TD>5.7</TD> <TD>8.0</TD></TR>\n
              <TR ALIGN="center"><TD>15</TD> <TD>5.7</TD> <TD>8.3</TD> <TD>5.7</TD> <TD>5.0</TD> <TD>6.0</TD> <TD>3.7</TD> <TD>7.0</TD> <TD>6.7</TD> <TD>3.7</TD> <TD>5.0</TD> <TD>6.7</TD> <TD>6.7</TD></TR>\n
              <TR ALIGN="center"><TD>20</TD> <TD>6.3</TD> <TD>9.3</TD> <TD>7.0</TD> <TD>5.3</TD> <TD>5.7</TD> <TD>4.0</TD> <TD>4.0</TD> <TD>2.7</TD> <TD>3.7</TD> <TD>4.7</TD> <TD>5.7</TD> <TD>6.7</TD></TR>\n
              <TR ALIGN="center"><TD>30</TD> <TD>6.7</TD> <TD>16.3</TD> <TD>10.7</TD> <TD>8.7</TD> <TD>8.0</TD> <TD>4.0</TD> <TD>4.7</TD> <TD>4.3</TD> <TD>10.7</TD> <TD>14.0</TD> <TD>6.0</TD> <TD>6.3</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes: Phragmites australis, Scirpus lacustris (Q).</li>\n
              <LI> Submerged macrophytes (Q)\n
              <BR>Elodea canadensis, Potamogeton praelongus, P. Perfoliatus, P. pusillus, P.  pectinatus.</li>\n
              <LI> Phytoplankton (3)\n
              <BR>Mallomonas akrokomos, Dinobryon divergens, Cyclotella operculata, Stephanodiscus alpinus, Rhodomonas minuta, Cryptomonas ovata.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton (3)\n
              <BR>Rotifera (Keratella cochlearis, Polyarthra vulgaris, P. major); Cladocera (Daphnia longispina hyalina); Copepoda (Eudiaptomus gracilis).</li>\n
              <LI> Fish: Salvelinus alpinus, Phoxinus phoxinus, Gobio gobio, Cottus gobio (Q).\n
              </UL>\n
              \n
              <B>F3 PRIMARY PRODUCTION RATE (Q)</B>\n
              \n
              <UL>\n
              <LI> Net primary production rate [mg C m-2 day-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>1976</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>184.4</TD> <TD>-</TD> <TD>140.9</TD> <TD>440</TD> <TD>320</TD> <TD>462</TD> <TD>119</TD> <TD>231</TD> <TD>270</TD> <TD>186</TD> <TD>137</TD> <TD>90</TD> <TD>233</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>F4 BIOMASS: Fig. EUR-10-03, 04 and 05.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-03.gif" width="413" height="127"></p>\n
              Fig. EUR-10-03<BR>\n
              Phytoplankton biomass [mg l-1], 1981 (2).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-04.gif" width="402" height="242"></p>\n
              Fig. EUR-10-04<BR>\n
              Percent contribution of various algal groups to the total algal volume, 1981 (2).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-05.gif" width="342" height="140"></p>\n
              Fig. EUR-10-05<BR>\n
              Zooplankton biomass (cell volume, the centre of the lake)(3).\n
              </OL>\n
              <br>\n
              \n
              <B>F5 FISHERY PRODUCTS (Q)</B>\n
              \n
              <UL>\n
              <LI> Annual fish catch\n
              <BR>Not estimated (sport-fishing only).</li>\n
              </UL>\n
              \n
              <B>F7 NOTES ON THE REMARKABLE CHANGES OF BIOTA IN THE LAKE IN RECENT YEARS (Q)</B>\n
              <UL>\n
              <LI>No change in the plankton, but change in the littoral zone toward\n
              eutrophication; less species in diatoms and Cyanophyceae and more green algae.</li>\n
              </UL>\n
              \n
              \n
              <BR>\n
              <H3>G. SOCIO-ECONOMIC CONDITIONS</H3>\n
              \n
              <B>G1 LAND USE IN THE CATCHMENT AREA (Q)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TD COLSPAN=5>1978</TD></TR>\n
              <TR><TH></TH> <TH>Area[km2]</TH> <TH>[%]</TH> <TH></TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Natural landscape</TD> <TD></TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Woody vegetation</TD> <TD>17.4</TD> <TD>64.6</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Rocky barrens</TD> <TD>7.6</TD> <TD>28.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Agricultural land</TD> <TD></TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Meadows</TD> <TD>1.8</TD> <TD>6.5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Residential area</TD> <TD>0.2</TD> <TD>0.6</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Total</TD> <TD>27.0</TD> <TD>100.0</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Main types of woody vegetation\n
              <BR>Picea abies, Fagus silvatica, Acer montana, Larix decidua.</li>\n
              </UL>\n
              \n
              <B>G3 POPULATION IN THE CATCHMENT AREA </B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TD COLSPAN=5>1970</TD></TR>\n
              <TR ALIGN="center"><TD></TD></TR>\n
              <TR><TH></TH> <TH>Population</TH> <TH>Population density [km-2]</TH> <TH>Major cities (population)</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>300</TD> <TD>11</TD> <TD>In summer up to 8,000 tourists per day</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <BR>\n
              <H3>H. LAKE UTILIZATION</H3>\n
              \n
              <B>H1 LAKE UTILIZATION</B>\n
              <UL>\n
              <LI>Tourism and recreation (swimming, sport-fishing).</li>\n
              </UL>\n
              \n
              \n
              <BR>\n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS</H3>\n
              \n
              <B>I1 ENHANCED SILTATION (Q)</B>\n
              \n
              <UL>\n
              <LI> Extent of damage: None.</li>\n
              </UL>\n
              \n
              <B>I3 EUTROPHICATION (Q)</B>\n
              \n
              <UL>\n
              <LI> Nitrogen and phosphorus loadings to the lake [t yr-1]\n
              <BR>1981  T-P: 0.394.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>J. WASTEWATER TREATMENTS</H3>\n
              \n
              <B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B>\n
              <OL>\n
              c) Limited pollution with wastewater treatment.\n
              </OL>\n
              \n
              <B>J3 SANITARY FACILITIES AND SEWERAGE</B>\n
              \n
              <UL>\n
              <LI> Municipal wastewater treatment systems\n
              <BR>Secondary treatment system (activated sludge) for domestic wastewater present.  The treated effluent is diverted to the outside of the lake's drainage basin.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI TYPE=A VALUE=17> Questionnaire filled by Dr. G. Malicky, Lunz Biological Station, Lunz.</li>\n
              <LI TYPE=1 VALUE=1> Pambalk, I. & Schlott, G. (1982)  Osterr. Eutrophieprogramm: Fortsetzung der Untersuchungen des OECD-Projektes (Temperatur, Sauerstoff, Phosphor, pH, Leitfahigkeit).  Jber. Biol. Stat. Lunz, 5: 111-115.</li>\n
              <LI> Malicky, G. (1982)  Das Phytoplankton des Lunzer Untersee im Jahr 1981.  Jber. Biol. Stat. Lunz, 5: 125-127.</li>\n
              <LI> Ruttner-Kolisko, A. (1978)  Durchflutung und Produktion im Lunzer Untersee.  Jber. Biol. Stat. Lunz, 1: 98-115.</li>\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              """
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            "more_info" => null
            "created_at" => "2020-04-23 09:03:37"
            "updated_at" => "2020-06-09 16:57:24"
          ]
          #original: array:18 [
            "id" => 3472
            "lake_id" => 96
            "lake_metadata_id" => 1
            "item_id" => 198
            "author" => null
            "original_file_name" => "eur-10.html"
            "system_file_name" => "lake_item_3472.html"
            "file_type" => "6"
            "file_size" => 14918
            "group_name_id" => 6
            "file_title" => "Lunzer See"
            "search_flag" => 0
            "inner_html" => 2
            "html" => """
              \n
              \n
              <H2>LUNZER SEE</H2>\n
              \n
              <b>A view of the whole lake</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-00.jpg" alt="Photo." width=380 height=256><br>\n
              Photo: H. Loffler\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Nieder-Osterreich, Austria.</li>\n
              <LI> 47:51N, 15:04E; 608 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>B. DESCRIPTION</H3>\n
              \n
              <OL>\n
              \n
              Lunzer Untersee (Lower Lunz Lake) is of glacial origin, and located approximately 120 km southwest of Vienna.  There are two small neighboring lakes, Mittelsee (Middle Lake) and Obersee (Upper Lake) in the upstream of the Seebach, the main inflowing river to Untersee.  The lake is only 0.7 km2 wide, has a maximum depth of 33.7 m, and a fairly short residence time (0.7 year).  The nutritional level of the lake water is still oligotrophic, but the littoral zone has recently been eutrophicated considerably, with remarkable changes in the aquatic flora.\n
              <br>\n
              Ninety percent or more of the total drainage basin area consist of karstic plateau and the forests of Norway spruce and European beech.  The density of year-round population in the drainage basin is low (11 km-2), but summer visitors may amount to 8,000 day-1 at the maximum.  Domestic waste water of this district has been diverted to preserve the quality of the lake water.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS (Q)</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>1</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>0.013</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>33.7</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>20.0</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Unregulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>4.2</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>0.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>27</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL (Q)</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-10-01.</li>\n
              <LI> Names of main islands: None.</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Seebach-Ausrinn R.).</li>\n
              </UL>\n
              \n
              <B>D2 CLIMATIC (Q)</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Lunz Biological Station*</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Mean temp. [deg C]</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>-4.5</TD> <TD>-2.1</TD> <TD>1.9</TD> <TD>6.6</TD> <TD>11.1</TD> <TD>14.3</TD> <TD>16.1</TD> <TD>15.4</TD> <TD>12.7</TD> <TD>7.5</TD> <TD>2.2</TD> <TD>-1.6</TD> <TD>6.6</TD></TR>\n
              <TR><TD COLSPAN=13>Precipitation [mm]</TD></TR>\n
              <TR ALIGN="center"><TD>108</TD> <TD>121</TD> <TD>109</TD> <TD>132</TD> <TD>148</TD> <TD>200</TD> <TD>243</TD> <TD>193</TD> <TD>116</TD> <TD>117</TD> <TD>107</TD> <TD>114</TD> <TD>1,706</TD></TR>\n
              <TR><TD COLSPAN=13>* 20-year mean.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Number of hours of bright sunshine (1927-1948): 1,312 hr yr-1.</li>\n
              <LI> Snowfall\n
              <BR>Period of snowfall (1927-1948): 1 November-15 April.  Depth of maximum snow accumulation (1981): 1.25 m.</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-01.gif" width="419" height="224"></p>\n
              Fig. EUR-10-01<BR>\n
              Bathymetric map (Q).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature [deg C](Q)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station 1, 1981</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>1</TD> <TD>2.4</TD> <TD>2.5</TD> <TD>4.5</TD> <TD>7.6</TD> <TD>10.7</TD> <TD>12.9</TD> <TD>11.9</TD> <TD>13.9</TD> <TD>12.4</TD> <TD>9.8</TD> <TD>5.8</TD> <TD>2.6</TD></TR>\n
              <TR ALIGN="center"><TD>5</TD> <TD>3.6</TD> <TD>3.2</TD> <TD>4.0</TD> <TD>7.6</TD> <TD>9.4</TD> <TD>11.3</TD> <TD>11.5</TD> <TD>13.7</TD> <TD>12.1</TD> <TD>9.8</TD> <TD>5.8</TD> <TD>2.7</TD></TR>\n
              <TR ALIGN="center"><TD>10</TD> <TD>3.6</TD> <TD>3.4</TD> <TD>3.9</TD> <TD>6.3</TD> <TD>7.6</TD> <TD>9.4</TD> <TD>9.8</TD> <TD>11.0</TD> <TD>10.8</TD> <TD>9.8</TD> <TD>5.8</TD> <TD>2.8</TD></TR>\n
              <TR ALIGN="center"><TD>15</TD> <TD>3.6</TD> <TD>3.4</TD> <TD>3.7</TD> <TD>5.2</TD> <TD>5.6</TD> <TD>6.7</TD> <TD>9.0</TD> <TD>9.0</TD> <TD>8.8</TD> <TD>9.8</TD> <TD>5.8</TD> <TD>3.0</TD></TR>\n
              <TR ALIGN="center"><TD>20</TD> <TD>3.6</TD> <TD>3.4</TD> <TD>3.7</TD> <TD>4.6</TD> <TD>5.0</TD> <TD>5.4</TD> <TD>5.8</TD> <TD>5.5</TD> <TD>5.8</TD> <TD>5.8</TD> <TD>5.8</TD> <TD>3.0</TD></TR>\n
              <TR ALIGN="center"><TD>30</TD> <TD>3.9</TD> <TD>3.4</TD> <TD>3.7</TD> <TD>4.2</TD> <TD>4.5</TD> <TD>4.6</TD> <TD>5.0</TD> <TD>4.9</TD> <TD>4.9</TD> <TD>5.0</TD> <TD>5.7</TD> <TD>3.5</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: March-December.</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>The thermocline is formed from middle May to early October.  Strong effect of flushing by the tributary Seebach.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E1 TRANSPARENCY: Fig. EUR-10-02.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-02.gif" width="404" height="147"></p>\n
              Fig. EUR-10-02<BR>\n
              Seasonal trend of transparency [m], Station 1, 1981 (2).\n
              </OL>\n
              <br>\n
              \n
              <B>E2 pH (1)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station 1, 1981</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>S*</TD> <TD>7.7</TD> <TD>7.5</TD> <TD>7.7</TD> <TD>7.6</TD> <TD>7.6</TD> <TD>7.9</TD> <TD>7.7</TD> <TD>7.4</TD> <TD>7.4</TD> <TD>7.4</TD> <TD>7.2</TD> <TD>7.7</TD></TR>\n
              <TR><TD COLSPAN=13>* Surface.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E4 DO [mg l-1]</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station 1, 1981</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>1</TD> <TD>10.8</TD> <TD>12.4</TD> <TD>13.9</TD> <TD>15.1</TD> <TD>14.7</TD> <TD>12.3</TD> <TD>11.4</TD> <TD>11.5</TD> <TD>12.0</TD> <TD>12.2</TD> <TD>11.7</TD> <TD>11.7</TD></TR>\n
              <TR ALIGN="center"><TD>5</TD> <TD>10.8</TD> <TD>12.4</TD> <TD>14.7</TD> <TD>14.9</TD> <TD>14.8</TD> <TD>11.8</TD> <TD>11.9</TD> <TD>11.7</TD> <TD>12.4</TD> <TD>12.6</TD> <TD>10.3</TD> <TD>11.5</TD></TR>\n
              <TR ALIGN="center"><TD>10</TD> <TD>10.9</TD> <TD>12.2</TD> <TD>13.8</TD> <TD>15.5</TD> <TD>15.7</TD> <TD>12.3</TD> <TD>11.7</TD> <TD>12.1</TD> <TD>11.8</TD> <TD>12.6</TD> <TD>9.9</TD> <TD>11.8</TD></TR>\n
              <TR ALIGN="center"><TD>15</TD> <TD>10.9</TD> <TD>12.2</TD> <TD>12.8</TD> <TD>13.9</TD> <TD>13.9</TD> <TD>12.0</TD> <TD>11.9</TD> <TD>11.5</TD> <TD>11.4</TD> <TD>12.2</TD> <TD>10.1</TD> <TD>11.4</TD></TR>\n
              <TR ALIGN="center"><TD>20</TD> <TD>10.9</TD> <TD>11.9</TD> <TD>12.7</TD> <TD>12.6</TD> <TD>12.0</TD> <TD>10.2</TD> <TD>9.5</TD> <TD>8.9</TD> <TD>9.1</TD> <TD>9.3</TD> <TD>9.9</TD> <TD>11.4</TD></TR>\n
              <TR ALIGN="center"><TD>30</TD> <TD>10.9</TD> <TD>11.1</TD> <TD>10.8</TD> <TD>11.2</TD> <TD>9.8</TD> <TD>6.7</TD> <TD>6.0</TD> <TD>5.1</TD> <TD>3.5</TD> <TD>2.9</TD> <TD>9.5</TD> <TD>11.2</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION [mg m-2](Q)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>1975</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>  0-20*</TD> <TD>0.77</TD> <TD>1.65</TD> <TD>0.73</TD> <TD>3.1</TD> <TD>5.8</TD> <TD>1.6</TD> <TD>1.3</TD> <TD>1.2</TD> <TD>2.6</TD> <TD>2.4</TD> <TD>1.2</TD> <TD>1.4</TD></TR>\n
              <TR><TD COLSPAN=13>* Integrated sample.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION</B>\n
              \n
              <UL>\n
              <LI> Total-P [micro g l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Station 1, 1981</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>1</TD> <TD>5.3</TD> <TD>14.0</TD> <TD>5.0</TD> <TD>7.0</TD> <TD>5.3</TD> <TD>6.0</TD> <TD>5.7</TD> <TD>8.0</TD> <TD>7.3</TD> <TD>5.7</TD> <TD>5.7</TD> <TD>6.7</TD></TR>\n
              <TR ALIGN="center"><TD>5</TD> <TD>5.7</TD> <TD>8.3</TD> <TD>7.0</TD> <TD>9.0</TD> <TD>5.3</TD> <TD>8.7</TD> <TD>7.7</TD> <TD>8.0</TD> <TD>10.3</TD> <TD>8.0</TD> <TD>5.0</TD> <TD>6.7</TD></TR>\n
              <TR ALIGN="center"><TD>10</TD> <TD>5.7</TD> <TD>8.7</TD> <TD>6.3</TD> <TD>7.3</TD> <TD>6.0</TD> <TD>5.0</TD> <TD>6.7</TD> <TD>5.7</TD> <TD>4.0</TD> <TD>6.3</TD> <TD>5.7</TD> <TD>8.0</TD></TR>\n
              <TR ALIGN="center"><TD>15</TD> <TD>5.7</TD> <TD>8.3</TD> <TD>5.7</TD> <TD>5.0</TD> <TD>6.0</TD> <TD>3.7</TD> <TD>7.0</TD> <TD>6.7</TD> <TD>3.7</TD> <TD>5.0</TD> <TD>6.7</TD> <TD>6.7</TD></TR>\n
              <TR ALIGN="center"><TD>20</TD> <TD>6.3</TD> <TD>9.3</TD> <TD>7.0</TD> <TD>5.3</TD> <TD>5.7</TD> <TD>4.0</TD> <TD>4.0</TD> <TD>2.7</TD> <TD>3.7</TD> <TD>4.7</TD> <TD>5.7</TD> <TD>6.7</TD></TR>\n
              <TR ALIGN="center"><TD>30</TD> <TD>6.7</TD> <TD>16.3</TD> <TD>10.7</TD> <TD>8.7</TD> <TD>8.0</TD> <TD>4.0</TD> <TD>4.7</TD> <TD>4.3</TD> <TD>10.7</TD> <TD>14.0</TD> <TD>6.0</TD> <TD>6.3</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes: Phragmites australis, Scirpus lacustris (Q).</li>\n
              <LI> Submerged macrophytes (Q)\n
              <BR>Elodea canadensis, Potamogeton praelongus, P. Perfoliatus, P. pusillus, P.  pectinatus.</li>\n
              <LI> Phytoplankton (3)\n
              <BR>Mallomonas akrokomos, Dinobryon divergens, Cyclotella operculata, Stephanodiscus alpinus, Rhodomonas minuta, Cryptomonas ovata.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton (3)\n
              <BR>Rotifera (Keratella cochlearis, Polyarthra vulgaris, P. major); Cladocera (Daphnia longispina hyalina); Copepoda (Eudiaptomus gracilis).</li>\n
              <LI> Fish: Salvelinus alpinus, Phoxinus phoxinus, Gobio gobio, Cottus gobio (Q).\n
              </UL>\n
              \n
              <B>F3 PRIMARY PRODUCTION RATE (Q)</B>\n
              \n
              <UL>\n
              <LI> Net primary production rate [mg C m-2 day-1]</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>1976</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>184.4</TD> <TD>-</TD> <TD>140.9</TD> <TD>440</TD> <TD>320</TD> <TD>462</TD> <TD>119</TD> <TD>231</TD> <TD>270</TD> <TD>186</TD> <TD>137</TD> <TD>90</TD> <TD>233</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>F4 BIOMASS: Fig. EUR-10-03, 04 and 05.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-03.gif" width="413" height="127"></p>\n
              Fig. EUR-10-03<BR>\n
              Phytoplankton biomass [mg l-1], 1981 (2).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-04.gif" width="402" height="242"></p>\n
              Fig. EUR-10-04<BR>\n
              Percent contribution of various algal groups to the total algal volume, 1981 (2).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur10-05.gif" width="342" height="140"></p>\n
              Fig. EUR-10-05<BR>\n
              Zooplankton biomass (cell volume, the centre of the lake)(3).\n
              </OL>\n
              <br>\n
              \n
              <B>F5 FISHERY PRODUCTS (Q)</B>\n
              \n
              <UL>\n
              <LI> Annual fish catch\n
              <BR>Not estimated (sport-fishing only).</li>\n
              </UL>\n
              \n
              <B>F7 NOTES ON THE REMARKABLE CHANGES OF BIOTA IN THE LAKE IN RECENT YEARS (Q)</B>\n
              <UL>\n
              <LI>No change in the plankton, but change in the littoral zone toward\n
              eutrophication; less species in diatoms and Cyanophyceae and more green algae.</li>\n
              </UL>\n
              \n
              \n
              <BR>\n
              <H3>G. SOCIO-ECONOMIC CONDITIONS</H3>\n
              \n
              <B>G1 LAND USE IN THE CATCHMENT AREA (Q)</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TD COLSPAN=5>1978</TD></TR>\n
              <TR><TH></TH> <TH>Area[km2]</TH> <TH>[%]</TH> <TH></TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Natural landscape</TD> <TD></TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Woody vegetation</TD> <TD>17.4</TD> <TD>64.6</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Rocky barrens</TD> <TD>7.6</TD> <TD>28.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Agricultural land</TD> <TD></TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Meadows</TD> <TD>1.8</TD> <TD>6.5</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Residential area</TD> <TD>0.2</TD> <TD>0.6</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">- Total</TD> <TD>27.0</TD> <TD>100.0</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <UL>\n
              <LI> Main types of woody vegetation\n
              <BR>Picea abies, Fagus silvatica, Acer montana, Larix decidua.</li>\n
              </UL>\n
              \n
              <B>G3 POPULATION IN THE CATCHMENT AREA </B>\n
              \n
              <OL>\n
              <TABLE WIDTH=500>\n
              \n
              <TR><TD COLSPAN=5>1970</TD></TR>\n
              <TR ALIGN="center"><TD></TD></TR>\n
              <TR><TH></TH> <TH>Population</TH> <TH>Population density [km-2]</TH> <TH>Major cities (population)</TH></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Total</TD> <TD>300</TD> <TD>11</TD> <TD>In summer up to 8,000 tourists per day</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              <BR>\n
              <H3>H. LAKE UTILIZATION</H3>\n
              \n
              <B>H1 LAKE UTILIZATION</B>\n
              <UL>\n
              <LI>Tourism and recreation (swimming, sport-fishing).</li>\n
              </UL>\n
              \n
              \n
              <BR>\n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS</H3>\n
              \n
              <B>I1 ENHANCED SILTATION (Q)</B>\n
              \n
              <UL>\n
              <LI> Extent of damage: None.</li>\n
              </UL>\n
              \n
              <B>I3 EUTROPHICATION (Q)</B>\n
              \n
              <UL>\n
              <LI> Nitrogen and phosphorus loadings to the lake [t yr-1]\n
              <BR>1981  T-P: 0.394.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>J. WASTEWATER TREATMENTS</H3>\n
              \n
              <B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B>\n
              <OL>\n
              c) Limited pollution with wastewater treatment.\n
              </OL>\n
              \n
              <B>J3 SANITARY FACILITIES AND SEWERAGE</B>\n
              \n
              <UL>\n
              <LI> Municipal wastewater treatment systems\n
              <BR>Secondary treatment system (activated sludge) for domestic wastewater present.  The treated effluent is diverted to the outside of the lake's drainage basin.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
              <LI TYPE=A VALUE=17> Questionnaire filled by Dr. G. Malicky, Lunz Biological Station, Lunz.</li>\n
              <LI TYPE=1 VALUE=1> Pambalk, I. & Schlott, G. (1982)  Osterr. Eutrophieprogramm: Fortsetzung der Untersuchungen des OECD-Projektes (Temperatur, Sauerstoff, Phosphor, pH, Leitfahigkeit).  Jber. Biol. Stat. Lunz, 5: 111-115.</li>\n
              <LI> Malicky, G. (1982)  Das Phytoplankton des Lunzer Untersee im Jahr 1981.  Jber. Biol. Stat. Lunz, 5: 125-127.</li>\n
              <LI> Ruttner-Kolisko, A. (1978)  Durchflutung und Produktion im Lunzer Untersee.  Jber. Biol. Stat. Lunz, 1: 98-115.</li>\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              """
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            "html" => """
              \n
              \n
              <H2>WINDERMERE</H2>\n
              \n
              <b>A view on the lakeshore at The Ferry House</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-00.jpg" alt="Photo." width=380 height=258><br>\n
              Photo: T. Nakajima\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Cumbria, UK.</li>\n
              <LI> 54:20N, 2:57W; 39 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>B. DESCRIPTION</H3>\n
              \n
              <OL>\n
              \n
              Windermere is the largest of many picturesque lakes formed by the activity of the Pleistocene ice sheet in the Lake District National Park of northwest England.  The park is studded not only with lakes but also with peaks including the highest in England (Sca Fell,978 m) and with historical and archeological relics, producing a very attractive landscape.\n
              <br>\n
              The lake is long and narrow from the north to the south, and an island in the central part divides the whole lake into the north and the south basin.  Hilly highland stretches behind the shoreline and is used for grazing grounds and woodlands.  There are two towns, Ambleside and Windermere, along the northeastern shore.  The Freshwater Biological Association's Windermere Laboratory established in 1902 is situated in the midst of western shore.\n
              <br>\n
              There are so many lakes, Rydal Water, Grassmere, Esthwaite Water and so forth, in the drainage basin, and the water of these lakes flows into Windermere.  Although the pH value of rain water in this area averages 4.4, that of lake water has been very stable since 1928 around 7.0.  The present trophic level of the lake is mesotrophic, but eutrophication is proceeding gradually rowing to the influx of nutrients from farms and residential areas.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>15</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>0.315</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>64</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>21.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Unregulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>17</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>-</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>231</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-11-01.</li>\n
              <LI> Names of main islands: Belle.</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Leven R.)(3).</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-01.gif" width="215" height="345"></p>\n
              Fig. EUR-11-01<BR>\n
              Bathymetric map (2).\n
              </OL>\n
              <br>\n
              \n
              <B>D2 CLIMATIC (4)</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Manchester*, 1951-1980</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Mean temp. [deg C]</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>3.7</TD> <TD>3.9</TD> <TD>5.7</TD> <TD>8.1</TD> <TD>11.4</TD> <TD>14.3</TD> <TD>15.6</TD> <TD>15.6</TD> <TD>13.6</TD> <TD>10.6</TD> <TD>6.4</TD> <TD>4.7</TD> <TD>9.5</TD></TR>\n
              <TR><TD COLSPAN=13>Precipitation [mm]</TD></TR>\n
              <TR ALIGN="center"><TD>67</TD> <TD>52</TD> <TD>51</TD> <TD>50</TD> <TD>60</TD> <TD>63</TD> <TD>78</TD> <TD>85</TD> <TD>76</TD> <TD>69</TD> <TD>77</TD> <TD>78</TD> <TD>805</TD></TR>\n
              <TR><TD COLSPAN=13>* Circa 110 km south of the lake.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-02.gif" width="407" height="145"></p>\n
              Fig. EUR-11-02<BR>\n
              Precipitation at Wraymires Hatchery (ca. 3 km west of the centre of the lake)(1).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-03.gif" width="459" height="140"></p>\n
              Fig. EUR-11-03<BR>\n
              Radiation (weekly means).  Open bar 1977, shaded bar 1978 [cal cm-2 day-1](5).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature [deg C](6)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Wray Castle Boathouse, The Ferry House, 1933-1975</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>S*</TD> <TD>4.8</TD> <TD>3.9</TD> <TD>4.8</TD> <TD>7.2</TD> <TD>11.1</TD> <TD>15.8</TD> <TD>17.4</TD> <TD>17.3</TD> <TD>15.1</TD> <TD>11.8</TD> <TD>8.4</TD> <TD>6.2</TD></TR>\n
              <TR><TD COLSPAN=13>* Surface.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-04.gif" width="436" height="160"></p>\n
              Fig. EUR-11-04<BR>\n
              Seasonal and vertical distribution of water temperature [deg C](South Basin, 1979-1980)(7).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: None.</li>\n
              <LI> Mixing type: Monomictic.</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>The thermocline is formed from June to early November.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E2 pH</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>South Basin, 1974-1977</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>7.0</TD> <TD>7.0</TD> <TD>7.0</TD> <TD>7.2</TD> <TD>7.3</TD> <TD>7.3</TD> <TD>7.5</TD> <TD>8.3</TD> <TD>7.3</TD> <TD>6.9</TD> <TD>6.9</TD> <TD>6.9</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E3 SS: Fig. EUR-11-05.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-05.gif" width="326" height="209"></p>\n
              Fig. EUR-11-05<BR>\n
              Total suspended load [mg l-1], North Basin, 1980 (9).\n
              </OL>\n
              <br>\n
              \n
              <B>E4 DO: Fig. EUR-11-06.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-06.gif" width="321" height="236"></p>\n
              Fig. EUR-11-06<BR>\n
              Seasonal trend of DO profile [mg l-1], South Basin, 1979 (10).\n
              </OL>\n
              <br>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION: Fig. EUR-11-07.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-07.gif" width="531" height="150"></p>\n
              Fig. EUR-11-07<BR>\n
              Chlorophyll a concentration, South Basin, 0.7 m [micro g l-1](10).\n
              </OL>\n
              <br>\n
              \n
              <B>E7 NITROGEN CONCENTRATION: Fig. EUR-11-08 and 09.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-08.gif" width="357" height="197"></p>\n
              Fig. EUR-11-08<BR>\n
              NH4-N and NO3-N concentrations [micro g l-1], South Basin, 0-7 m (10).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-09.gif" width="410" height="205"></p>\n
              Fig. EUR-11-09<BR>\n
              Vertical distribution of N concentrations [micro g l-1], South Basin, 1979 (10).\n
              </OL>\n
              <br>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION: Fig. EUR-11-10 and 11.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-10.gif" width="372" height="197"></p>\n
              Fig. EUR-11-10<BR>\n
              Total-P and SRP concentrations [micro g l-1], South Basin, 0-7 m (10).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-11.gif" width="399" height="167"></p>\n
              Fig. EUR-11-11<BR>\n
              Vertical distribution of P concentrations [micro g l-1], South Basin, 1979 (10).\n
              </OL>\n
              <br>\n
              \n
              <B>E10 PAST TRENDS: Fig. EUR-11-12.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-12.gif" width="414" height="278"></p>\n
              Fig. EUR-11-12<BR>\n
              Trends of solutes in the lake water (1).\n
              </OL>\n
              <br>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes (11)\n
              <BR>Phragmites australis, Typha angustifolia, Scirpus lacustris, Phalaris arundinacea, Carex elata.</li>\n
              <LI> Floating macrophytes (11)\n
              <BR>Nymphaea sp., Potamogeton natans.</li>\n
              <LI> Submerged macrophytes (11)\n
              <BR>Potamogeton perfoliatus, P. gramineus, Elodea canadensis, E. nuttallii, Myriophyllum alterniflorum.</li>\n
              <LI> Phytoplankton (7, 9, 12)\n
              <BR>Asteronella formosa, Cosmarium spp., Tabellaria flocculosa, Fragilaria crotonensis, Cyclotella meneghiniana, Oscillartoria limnetica, Melosira italica.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton: Cyclops abyssorum, Mesocyclops leuckarti (13).</li>\n
              <LI> Benthos (14, 15)\n
              <BR>Isopoda (Ascellus aquaticus), Platylminthes (Dendrocoelum lacteum), Neuroptera (Sialis lutaria), Ephemeroptera (Caenis sp.), Crangonyx, Gammarus, Oligochaetes, Chironomids.</li>\n
              <LI> Fish (16)\n
              <BR>Salvelinus alpinus, Salmo trutta, Anguilla anguilla, Phoxinus phoxinus, Perca fluviatilis, Esox lucius, Salmo salar, Rutilus rutilus, Scardinius eryhrophthaimus, Tinca tinca, Cottus gobio, Noemacheilus barbatulus, Gasterosteus aculeatus.</li>\n
              </UL>\n
              \n
              <B>F4 BIOMASS: Fig. EUR-11-13 and 14.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-13.gif" width="491" height="330"></p>\n
              Fig. EUR-11-13<BR>\n
              Biomass of zooplankton [mg l-1], South Basin (10).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-14.gif" width="289" height="327"></p>\n
              Fig. EUR-11-14<BR>\n
              Trends of the biomass and population of perch (17).\n
              </OL>\n
              <br>\n
              a<BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              \n
              <OL>\n
              <LI> Sutcliffe, D. W., Carrick, T. R., Heron, J., Rigg, E., Talling, J. F., Woof, C. &amp; Lund, J. W. G. (1982)  Long-term and seasonal changes in the chemical composition of precipitation and surface waters of lakes and tarns in the English Lake District.  Freshwater Biol., 12: 451-506.</li>\n
              <LI> Ramsbottom, A. E. (1976)  Depth Charts of the Cumbrian Lakes.  Freshwater Biological Association Scientific Publications, No. 33.  39 pp.</li>\n
              <LI> Hutchinson, G. E. (1957)  A Treatise on Limnology, Vol.1. Part 1.  Geography and Physics of Lakes.  John Wiley &amp; Sons, Inc., New York.</li>\n
              <LI> Tokyo Astronomical Observatory (ed.)(1986)  Chronological Scientific Tables, 1007 pp.  Maruzen Co., Tokyo.*</li>\n
              <LI> Davison, W., Heaney, S. I., Talling, J. F. &amp; Rigg, E. (1980)  Seasonal transformations and movements of iron in a productive English lake with deep-water anoxia.  Schweiz. Z. Hydrol., 42: 196-224.</li>\n
              <LI> Kipling, C. &amp; Roscoe, M. E. (1977)  Surface Water Temperature of Windermere (1933-1975).  Freshwater Biological Association Scientific Publications, No. 2, pp. 60.</li>\n
              <LI> Reynolds, C. S., Marison, H. R. &amp; Butterwick, C. (1982)  The sedimentary flux of phytoplankton in the south basin of Windermere.  Limnol. Oceanogr.  27: 1162-1175.</li>\n
              <LI> Carrick, T. R. &amp; Sutcliffe, D. W. (1982)  Concentrations of Major Ions in Lakes and Tarns of the English Lake District (1953-1978).  Freshwater Biological Association Scientific Publications, No. 16, 170 pp.</li>\n
              <LI> Scholkovitz, E. R. &amp; Copland, D. (1982)  The major-element chemistry of suspended particles in the north basin of Windermere.  Geochim. Cosmochim Acta, 46: 1921-1930.</li>\n
              <LI> George, D. G. (1981)  The spatial distribution of nutrients in the South Basin of Windermere.  Freshwater Biol., 11: 405-424.</li>\n
              <LI> Stokoe, R. (1983)  Aquatic Macrophytes in the Tarns and Lakes of Cumbria.  Freshwater Biological Association Scientific Publications, No. 18.   60 pp.</li>\n
              <LI> Reynolds, C. S. (1980)  Phytoplankton assemblages and their periodicity in stratifying lake systems.  Holarct. Ecol., 3: 141-159.</li>\n
              <LI> Smyly, W. J. P. (1978)  Strategies for co-existence in two limnetic cyclopoid copepods.  Verh. Internat. Verein. Limnol., 20: 2501-2504.</li>\n
              <LI> Marcus, J. H., Sutcliffe, D. W. &amp; Willoughby, L. G. (1978)  Feeding and growth of Asellus aquaticus (Isopoda) on food items from the littoral of Windermere, including green leaves of Elodea canadensis.  Freshwater Biol., 8: 505-519.</li>\n
              <LI> Macan, T. T. & Silva, P. K. (1979)  On the occurrence of Dendrocoelum lacteum (Muller) and Asellus aquaticus  (L.) as predator and prey in the stony substratum of Windermere.  Arch. Hydrobiol., 86: 95-111.</li>\n
              <LI> Bagenal, T. B. (1982)  Experimental manipulations of the fish populations in Windermere. Hydrobiologia, 86: 201-205.</li>\n
              <LI> Craig, J. F., Kipling, C., Le Cren, E. D. &amp; McCormack, J. C. (1979)  Estimates of the numbers, biomass and year-class strengths of perch (Perca fluviatilis L.) in Windermere from 1967 to 1977 and some comparisons with earlier years.  J. Animal Ecol., 48: 315-325.  </li>\n
              <br>* Printed in Japanese.\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
              """
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          #original: array:18 [
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            "lake_id" => 97
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            "file_title" => "Windermere"
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              \n
              \n
              <H2>WINDERMERE</H2>\n
              \n
              <b>A view on the lakeshore at The Ferry House</b><br><br>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-00.jpg" alt="Photo." width=380 height=258><br>\n
              Photo: T. Nakajima\n
              <br><br>\n
              \n
              \n
              \n
              \n
              <BR>\n
              <H3>A. LOCATION</H3>\n
              \n
              \n
              <UL>\n
              <LI> Cumbria, UK.</li>\n
              <LI> 54:20N, 2:57W; 39 m above sea level.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>B. DESCRIPTION</H3>\n
              \n
              <OL>\n
              \n
              Windermere is the largest of many picturesque lakes formed by the activity of the Pleistocene ice sheet in the Lake District National Park of northwest England.  The park is studded not only with lakes but also with peaks including the highest in England (Sca Fell,978 m) and with historical and archeological relics, producing a very attractive landscape.\n
              <br>\n
              The lake is long and narrow from the north to the south, and an island in the central part divides the whole lake into the north and the south basin.  Hilly highland stretches behind the shoreline and is used for grazing grounds and woodlands.  There are two towns, Ambleside and Windermere, along the northeastern shore.  The Freshwater Biological Association's Windermere Laboratory established in 1902 is situated in the midst of western shore.\n
              <br>\n
              There are so many lakes, Rydal Water, Grassmere, Esthwaite Water and so forth, in the drainage basin, and the water of these lakes flows into Windermere.  Although the pH value of rain water in this area averages 4.4, that of lake water has been very stable since 1928 around 7.0.  The present trophic level of the lake is mesotrophic, but eutrophication is proceeding gradually rowing to the influx of nutrients from farms and residential areas.\n
              <br>\n
              \n
              </ol>\n
              <BR>\n
              <H3>C. PHYSICAL DIMENSIONS</H3>\n
              \n
              <OL>\n
              <TABLE WIDTH=350>\n
              \n
              <TR ALIGN="center"><TD ALIGN="left">Surface area [km2]</TD> <TD>15</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Volume [km3]</TD> <TD>0.315</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Maximum depth [m]</TD> <TD>64</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Mean depth [m]</TD> <TD>21.3</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Water level</TD> <TD>Unregulated</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Length of shoreline [km]</TD> <TD>17</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Residence time [yr]</TD> <TD>-</TD></TR>\n
              <TR ALIGN="center"><TD ALIGN="left">Catchment area [km2]</TD> <TD>231</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <B>D1 GEOGRAPHICAL</B>\n
              \n
              <UL>\n
              <LI> Bathymetric map: Fig. EUR-11-01.</li>\n
              <LI> Names of main islands: Belle.</li>\n
              <LI> Number of outflowing rivers and channels (name): 1 (Leven R.)(3).</li>\n
              </UL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-01.gif" width="215" height="345"></p>\n
              Fig. EUR-11-01<BR>\n
              Bathymetric map (2).\n
              </OL>\n
              <br>\n
              \n
              <B>D2 CLIMATIC (4)</B>\n
              \n
              <UL>\n
              <LI> Climatic data at Manchester*, 1951-1980</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Mean temp. [deg C]</TD></TR>\n
              <TR><TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH> <TH>Ann.</TH></TR>\n
              <TR ALIGN="center"><TD>3.7</TD> <TD>3.9</TD> <TD>5.7</TD> <TD>8.1</TD> <TD>11.4</TD> <TD>14.3</TD> <TD>15.6</TD> <TD>15.6</TD> <TD>13.6</TD> <TD>10.6</TD> <TD>6.4</TD> <TD>4.7</TD> <TD>9.5</TD></TR>\n
              <TR><TD COLSPAN=13>Precipitation [mm]</TD></TR>\n
              <TR ALIGN="center"><TD>67</TD> <TD>52</TD> <TD>51</TD> <TD>50</TD> <TD>60</TD> <TD>63</TD> <TD>78</TD> <TD>85</TD> <TD>76</TD> <TD>69</TD> <TD>77</TD> <TD>78</TD> <TD>805</TD></TR>\n
              <TR><TD COLSPAN=13>* Circa 110 km south of the lake.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-02.gif" width="407" height="145"></p>\n
              Fig. EUR-11-02<BR>\n
              Precipitation at Wraymires Hatchery (ca. 3 km west of the centre of the lake)(1).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-03.gif" width="459" height="140"></p>\n
              Fig. EUR-11-03<BR>\n
              Radiation (weekly means).  Open bar 1977, shaded bar 1978 [cal cm-2 day-1](5).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Water temperature [deg C](6)</li>\n
              </UL>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>Wray Castle Boathouse, The Ferry House, 1933-1975</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>S*</TD> <TD>4.8</TD> <TD>3.9</TD> <TD>4.8</TD> <TD>7.2</TD> <TD>11.1</TD> <TD>15.8</TD> <TD>17.4</TD> <TD>17.3</TD> <TD>15.1</TD> <TD>11.8</TD> <TD>8.4</TD> <TD>6.2</TD></TR>\n
              <TR><TD COLSPAN=13>* Surface.</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-04.gif" width="436" height="160"></p>\n
              Fig. EUR-11-04<BR>\n
              Seasonal and vertical distribution of water temperature [deg C](South Basin, 1979-1980)(7).\n
              </OL>\n
              <br>\n
              \n
              \n
              <UL>\n
              <LI> Freezing period: None.</li>\n
              <LI> Mixing type: Monomictic.</li>\n
              <LI> Notes on water mixing and thermocline formation\n
              <BR>The thermocline is formed from June to early November.</li>\n
              </UL>\n
              \n
              \n
              \n
              <BR>\n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <B>E2 pH</B>\n
              \n
              <OL>\n
              <TABLE WIDTH=570>\n
              \n
              <TR><TD COLSPAN=13>South Basin, 1974-1977</TD></TR>\n
              \n
              <TR><TH>Depth [m]</TH> <TH>Jan</TH> <TH>Feb</TH> <TH>Mar</TH> <TH>Apr</TH> <TH>May</TH> <TH>Jun</TH> <TH>Jul</TH> <TH>Aug</TH> <TH>Sep</TH> <TH>Oct</TH> <TH>Nov</TH> <TH>Dec</TH></TR>\n
              <TR ALIGN="center"><TD>0-10</TD> <TD>7.0</TD> <TD>7.0</TD> <TD>7.0</TD> <TD>7.2</TD> <TD>7.3</TD> <TD>7.3</TD> <TD>7.5</TD> <TD>8.3</TD> <TD>7.3</TD> <TD>6.9</TD> <TD>6.9</TD> <TD>6.9</TD></TR>\n
              </TABLE>\n
              </OL>\n
              \n
              <B>E3 SS: Fig. EUR-11-05.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-05.gif" width="326" height="209"></p>\n
              Fig. EUR-11-05<BR>\n
              Total suspended load [mg l-1], North Basin, 1980 (9).\n
              </OL>\n
              <br>\n
              \n
              <B>E4 DO: Fig. EUR-11-06.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-06.gif" width="321" height="236"></p>\n
              Fig. EUR-11-06<BR>\n
              Seasonal trend of DO profile [mg l-1], South Basin, 1979 (10).\n
              </OL>\n
              <br>\n
              \n
              <B>E6 CHLOROPHYLL CONCENTRATION: Fig. EUR-11-07.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-07.gif" width="531" height="150"></p>\n
              Fig. EUR-11-07<BR>\n
              Chlorophyll a concentration, South Basin, 0.7 m [micro g l-1](10).\n
              </OL>\n
              <br>\n
              \n
              <B>E7 NITROGEN CONCENTRATION: Fig. EUR-11-08 and 09.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-08.gif" width="357" height="197"></p>\n
              Fig. EUR-11-08<BR>\n
              NH4-N and NO3-N concentrations [micro g l-1], South Basin, 0-7 m (10).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-09.gif" width="410" height="205"></p>\n
              Fig. EUR-11-09<BR>\n
              Vertical distribution of N concentrations [micro g l-1], South Basin, 1979 (10).\n
              </OL>\n
              <br>\n
              \n
              <B>E8 PHOSPHORUS CONCENTRATION: Fig. EUR-11-10 and 11.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-10.gif" width="372" height="197"></p>\n
              Fig. EUR-11-10<BR>\n
              Total-P and SRP concentrations [micro g l-1], South Basin, 0-7 m (10).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-11.gif" width="399" height="167"></p>\n
              Fig. EUR-11-11<BR>\n
              Vertical distribution of P concentrations [micro g l-1], South Basin, 1979 (10).\n
              </OL>\n
              <br>\n
              \n
              <B>E10 PAST TRENDS: Fig. EUR-11-12.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-12.gif" width="414" height="278"></p>\n
              Fig. EUR-11-12<BR>\n
              Trends of solutes in the lake water (1).\n
              </OL>\n
              <br>\n
              \n
              \n
              \n
              <BR>\n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <B>F1 FLORA</B>\n
              \n
              <UL>\n
              <LI> Emerged macrophytes (11)\n
              <BR>Phragmites australis, Typha angustifolia, Scirpus lacustris, Phalaris arundinacea, Carex elata.</li>\n
              <LI> Floating macrophytes (11)\n
              <BR>Nymphaea sp., Potamogeton natans.</li>\n
              <LI> Submerged macrophytes (11)\n
              <BR>Potamogeton perfoliatus, P. gramineus, Elodea canadensis, E. nuttallii, Myriophyllum alterniflorum.</li>\n
              <LI> Phytoplankton (7, 9, 12)\n
              <BR>Asteronella formosa, Cosmarium spp., Tabellaria flocculosa, Fragilaria crotonensis, Cyclotella meneghiniana, Oscillartoria limnetica, Melosira italica.</li>\n
              </UL>\n
              \n
              <B>F2 FAUNA</B>\n
              \n
              <UL>\n
              <LI> Zooplankton: Cyclops abyssorum, Mesocyclops leuckarti (13).</li>\n
              <LI> Benthos (14, 15)\n
              <BR>Isopoda (Ascellus aquaticus), Platylminthes (Dendrocoelum lacteum), Neuroptera (Sialis lutaria), Ephemeroptera (Caenis sp.), Crangonyx, Gammarus, Oligochaetes, Chironomids.</li>\n
              <LI> Fish (16)\n
              <BR>Salvelinus alpinus, Salmo trutta, Anguilla anguilla, Phoxinus phoxinus, Perca fluviatilis, Esox lucius, Salmo salar, Rutilus rutilus, Scardinius eryhrophthaimus, Tinca tinca, Cottus gobio, Noemacheilus barbatulus, Gasterosteus aculeatus.</li>\n
              </UL>\n
              \n
              <B>F4 BIOMASS: Fig. EUR-11-13 and 14.</B>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-13.gif" width="491" height="330"></p>\n
              Fig. EUR-11-13<BR>\n
              Biomass of zooplankton [mg l-1], South Basin (10).\n
              </OL>\n
              <br>\n
              \n
              <ol>\n
              <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur11-14.gif" width="289" height="327"></p>\n
              Fig. EUR-11-14<BR>\n
              Trends of the biomass and population of perch (17).\n
              </OL>\n
              <br>\n
              a<BR>\n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              \n
              <OL>\n
              <LI> Sutcliffe, D. W., Carrick, T. R., Heron, J., Rigg, E., Talling, J. F., Woof, C. &amp; Lund, J. W. G. (1982)  Long-term and seasonal changes in the chemical composition of precipitation and surface waters of lakes and tarns in the English Lake District.  Freshwater Biol., 12: 451-506.</li>\n
              <LI> Ramsbottom, A. E. (1976)  Depth Charts of the Cumbrian Lakes.  Freshwater Biological Association Scientific Publications, No. 33.  39 pp.</li>\n
              <LI> Hutchinson, G. E. (1957)  A Treatise on Limnology, Vol.1. Part 1.  Geography and Physics of Lakes.  John Wiley &amp; Sons, Inc., New York.</li>\n
              <LI> Tokyo Astronomical Observatory (ed.)(1986)  Chronological Scientific Tables, 1007 pp.  Maruzen Co., Tokyo.*</li>\n
              <LI> Davison, W., Heaney, S. I., Talling, J. F. &amp; Rigg, E. (1980)  Seasonal transformations and movements of iron in a productive English lake with deep-water anoxia.  Schweiz. Z. Hydrol., 42: 196-224.</li>\n
              <LI> Kipling, C. &amp; Roscoe, M. E. (1977)  Surface Water Temperature of Windermere (1933-1975).  Freshwater Biological Association Scientific Publications, No. 2, pp. 60.</li>\n
              <LI> Reynolds, C. S., Marison, H. R. &amp; Butterwick, C. (1982)  The sedimentary flux of phytoplankton in the south basin of Windermere.  Limnol. Oceanogr.  27: 1162-1175.</li>\n
              <LI> Carrick, T. R. &amp; Sutcliffe, D. W. (1982)  Concentrations of Major Ions in Lakes and Tarns of the English Lake District (1953-1978).  Freshwater Biological Association Scientific Publications, No. 16, 170 pp.</li>\n
              <LI> Scholkovitz, E. R. &amp; Copland, D. (1982)  The major-element chemistry of suspended particles in the north basin of Windermere.  Geochim. Cosmochim Acta, 46: 1921-1930.</li>\n
              <LI> George, D. G. (1981)  The spatial distribution of nutrients in the South Basin of Windermere.  Freshwater Biol., 11: 405-424.</li>\n
              <LI> Stokoe, R. (1983)  Aquatic Macrophytes in the Tarns and Lakes of Cumbria.  Freshwater Biological Association Scientific Publications, No. 18.   60 pp.</li>\n
              <LI> Reynolds, C. S. (1980)  Phytoplankton assemblages and their periodicity in stratifying lake systems.  Holarct. Ecol., 3: 141-159.</li>\n
              <LI> Smyly, W. J. P. (1978)  Strategies for co-existence in two limnetic cyclopoid copepods.  Verh. Internat. Verein. Limnol., 20: 2501-2504.</li>\n
              <LI> Marcus, J. H., Sutcliffe, D. W. &amp; Willoughby, L. G. (1978)  Feeding and growth of Asellus aquaticus (Isopoda) on food items from the littoral of Windermere, including green leaves of Elodea canadensis.  Freshwater Biol., 8: 505-519.</li>\n
              <LI> Macan, T. T. & Silva, P. K. (1979)  On the occurrence of Dendrocoelum lacteum (Muller) and Asellus aquaticus  (L.) as predator and prey in the stony substratum of Windermere.  Arch. Hydrobiol., 86: 95-111.</li>\n
              <LI> Bagenal, T. B. (1982)  Experimental manipulations of the fish populations in Windermere. Hydrobiologia, 86: 201-205.</li>\n
              <LI> Craig, J. F., Kipling, C., Le Cren, E. D. &amp; McCormack, J. C. (1979)  Estimates of the numbers, biomass and year-class strengths of perch (Perca fluviatilis L.) in Windermere from 1967 to 1977 and some comparisons with earlier years.  J. Animal Ecol., 48: 315-325.  </li>\n
              <br>* Printed in Japanese.\n
              </OL>\n
              \n
              \n
              \n
              \n
              \n
              \n
              \n
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              \n
              \n
              <H2>LAKE BALATON</H2>\n
              \n
              <P><B>From the rooftop of Balaton Limnological Research\n
              Institue, Tihany</B><BR>\n
              <BR>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-00.jpg" ALT="Photo." WIDTH="380" HEIGHT="259"\n
              NATURALSIZEFLAG="0" ALIGN="BOTTOM"><BR>\n
              Photo: A. Kurata</P>\n
              \n
              <P><BR>\n
              <BR>\n
              <BR>\n
              </P>\n
              \n
              <H3>A. LOCATION</H3>\n
              \n
              <UL>\n
                <LI>Somogy and Veszprem, Hungary.</li>\n
                <LI>46:42-47:04N, 17:15-18:10E; 104.8* m above sea level. </li><BR>\n
                * Adriatic.\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3><BR>\n
              <BR>\n
              <BR>\n
              B. DESCRIPTION</H3>\n
              \n
              </H3></H3></H3>\n
              \n
              <OL>\n
                <P>Lake Balaton was formed mainly by tectonic\n
                forces 12,000-20,000 years ago. Prior to the opening of Sio-canal\n
                in 1863, its water level was 3 m higher and its surface was about\n
                twice larger than at the present. With its surface area of 593\n
                km2, Lake Balaton is the largest lake in Central Europe, but\n
                its mean depth is only 3.2 m. <BR>\n
                The main inflow, the Zala River, empties\n
                into the southwestern end of the lake, while the Sio-canal drains\n
                the water from the eastern basin into the River Danube. <BR>\n
                The lake is covered by ice in winter. In\n
                summer the average water temperature is 23deg C. The strong waves\n
                swirl up much sediments, rendering the transparency low. <BR>\n
                The major ions of the water are Ca2+, Mg2+\n
                and HCO3-. The pH is 8.4, rising to higher values during intensive\n
                primary production. Oxygen deficiency is formed only temporarily\n
                in the western part of the lake in calm summer periods with algal\n
                blooms. <BR>\n
                The distribution of macrophytes is restricted\n
                by strong waves to a relatively narrow belt. Only 3 percent of\n
                the lake surface is covered by reeds, and even less by submerged\n
                macrophytes. The major primary producers are phytoplankton. Zooplankton\n
                is not abundant. Zoobenthos represents an important food for\n
                the fish. The annual commercial fish catch is 1200 tons. <BR>\n
                The southern shore of the lake consists\n
                of sandy beach, while on the northern shore there are mountains\n
                of volcanic origin with old ruins on their tops and vineyards\n
                on their slopes. The picturesque landscape and the water ideal\n
                for swimming and other water sports attract 2 million tourists\n
                annually. <BR>\n
                The sewage discharge from rapidly developing\n
                towns in the watershed, the growing use of fertilizers in agriculture\n
                and large animal farms increased the nutrient loading to the\n
                lake in the last decades. A rapid eutrophication became apparent\n
                by increased production and biomass of phytoplankton. Blooms\n
                of blue-green algae are frequent in the most polluted western\n
                part of the lake. <BR>\n
                A eutrophication\n
                control program has been formulated, based on intensive scientific\n
                researches. Most of the municipal sewage is now diverted from\n
                recreational areas. Phosphorus removal was introduced at other\n
                sewage treatment plants. A reservoir was constructed to retain\n
                the nutrients carried by the Zala River. Pollution due to liquid\n
                manure was reduced. Construction of more reservoirs on major\n
                tributaries of the lake and a soil protection program are in\n
                progress (Q). <BR>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>C. PHYSICAL DIMENSIONS</H3>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Surface area [km2]</TD> \n
                    <TD>\n
                    593</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Volume [km3]</TD> \n
                    <TD>\n
                    1.9</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Maximum depth [m]</TD> \n
                    <TD>\n
                    12.2</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Mean depth [m]</TD> \n
                    <TD>\n
                    3.3</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Water level</TD> \n
                    <TD>\n
                    Regulated</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Normal range of annual water level fluctuation [m]</TD> \n
                    <TD>\n
                    0.3</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Length of shoreline [km]</TD> \n
                    <TD>\n
                    236</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Residence time [yr]</TD> \n
                    <TD>\n
                    2</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Catchment area [km2]</TD> \n
                    <TD>\n
                    5,181</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>D. PHYSIOGRAPHIC FEATURES (2)</H3>\n
              \n
              <P><B>D1 GEOGRAPHICAL</B></P>\n
              \n
              <UL>\n
                <LI></li>  \n
                <LI>Bathymetric map: Fig. EUR-04-01.</li>\n
                <LI>Names of main islands: None.</li>\n
                <LI>Number of outflowing rivers and channels (name): 1 (Sio-canal).</li>\n
              </UL>\n
              \n
              <P><B>D2 CLIMATIC</B></P>\n
              \n
              <UL>\n
                <LI>Climatic data at Siofok</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Mean temp. [deg C]*1</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    -1.4</TD> \n
                    <TD>\n
                    0.6</TD> \n
                    <TD>\n
                    5.0</TD> \n
                    <TD>\n
                    10.7</TD> \n
                    <TD>\n
                    15.6</TD> \n
                    <TD>\n
                    19.4</TD> \n
                    <TD>\n
                    20.8</TD> \n
                    <TD>\n
                    20.2</TD> \n
                    <TD>\n
                    16.3</TD> \n
                    <TD>\n
                    10.8</TD> \n
                    <TD>\n
                    5.6</TD> \n
                    <TD>\n
                    1.0</TD> \n
                    <TD>\n
                    10.4</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Precipitation [mm]*2</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    36.5</TD> \n
                    <TD>\n
                    37.7</TD> \n
                    <TD>\n
                    35.6</TD> \n
                    <TD>\n
                    44.7</TD> \n
                    <TD>\n
                    60.4</TD> \n
                    <TD>\n
                    80.8</TD> \n
                    <TD>\n
                    73.3</TD> \n
                    <TD>\n
                    62.4</TD> \n
                    <TD>\n
                    48.4</TD> \n
                    <TD>\n
                    42.9</TD> \n
                    <TD>\n
                    65.5</TD> \n
                    <TD>\n
                    45.7</TD> \n
                    <TD>\n
                    633.9</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    *1 1947-1963. *2 1951-1980.</TD>\n
                     \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Number of hours of bright sunshine (1951-1980): 2,052 hr\n
                yr-1.</li>\n
                <LI>Solar radiation (1931-1960): 12.2 MJ m-2 day-1.</li>\n
              </UL>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-01.gif" width="415" height="276"></p>\n
                <p>Fig. EUR-04-01<BR>\n
                  Bathymetric map (Q).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <UL>\n
                <LI>Water temperature [deg C]</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    1947-1963</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    11.5</TD> \n
                    <TD>\n
                    17.6</TD> \n
                    <TD>\n
                    21.9</TD> \n
                    <TD>\n
                    23.2</TD> \n
                    <TD>\n
                    22.9</TD> \n
                    <TD>\n
                    19.2</TD> \n
                    <TD>\n
                    13.3</TD> \n
                    <TD>\n
                    6.9</TD> \n
                    <TD>\n
                    2.0</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Freezing period (1927-1963): 4 January-24 February.</li>\n
                <LI>Mixing type: Polymictic.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>E. LAKE WATER QUALITY (3)</H3>\n
              \n
              <P><B>E1 TRANSPARENCY [m]</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    0.49</TD> \n
                    <TD>\n
                    0.38</TD> \n
                    <TD>\n
                    0.50</TD> \n
                    <TD>\n
                    0.47</TD> \n
                    <TD>\n
                    0.50</TD> \n
                    <TD>\n
                    0.35</TD> \n
                    <TD>\n
                    0.41</TD> \n
                    <TD>\n
                    0.46</TD> \n
                    <TD>\n
                    0.50</TD> \n
                    <TD>\n
                    0.65</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    0.72</TD> \n
                    <TD>\n
                    0.48</TD> \n
                    <TD>\n
                    0.49</TD> \n
                    <TD>\n
                    0.56</TD> \n
                    <TD>\n
                    0.69</TD> \n
                    <TD>\n
                    0.45</TD> \n
                    <TD>\n
                    0.64</TD> \n
                    <TD>\n
                    0.53</TD> \n
                    <TD>\n
                    0.60</TD> \n
                    <TD>\n
                    0.52</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    0.71</TD> \n
                    <TD>\n
                    0.45</TD> \n
                    <TD>\n
                    0.45</TD> \n
                    <TD>\n
                    0.71</TD> \n
                    <TD>\n
                    0.67</TD> \n
                    <TD>\n
                    0.55</TD> \n
                    <TD>\n
                    0.69</TD> \n
                    <TD>\n
                    0.70</TD> \n
                    <TD>\n
                    0.57</TD> \n
                    <TD>\n
                    1.25</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E2 pH</B></P>\n
              \n
              <OL>\n
                <P>8.4, rising to 8.9 in the western part of the lake during\n
                summer algal blooms.\n
              </OL>\n
              \n
              <P><B>E3 SS [mg l-1]</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    34.1</TD> \n
                    <TD>\n
                    39.6</TD> \n
                    <TD>\n
                    27.6</TD> \n
                    <TD>\n
                    40.6</TD> \n
                    <TD>\n
                    23.1</TD> \n
                    <TD>\n
                    31.7</TD> \n
                    <TD>\n
                    23.4</TD> \n
                    <TD>\n
                    25.8</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    14.5</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    20.7</TD> \n
                    <TD>\n
                    22.2</TD> \n
                    <TD>\n
                    22.5</TD> \n
                    <TD>\n
                    13.9</TD> \n
                    <TD>\n
                    16.4</TD> \n
                    <TD>\n
                    29.1</TD> \n
                    <TD>\n
                    13.5</TD> \n
                    <TD>\n
                    22.6</TD> \n
                    <TD>\n
                    56.0</TD> \n
                    <TD>\n
                    13.4</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    16.1</TD> \n
                    <TD>\n
                    19.7</TD> \n
                    <TD>\n
                    23.9</TD> \n
                    <TD>\n
                    13.7</TD> \n
                    <TD>\n
                    25.0</TD> \n
                    <TD>\n
                    23.1</TD> \n
                    <TD>\n
                    13.6</TD> \n
                    <TD>\n
                    18.6</TD> \n
                    <TD>\n
                    20.1</TD> \n
                    <TD>\n
                    4.9</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E4 DO [mg l-1]</B></P>\n
              \n
              <P></P>\n
              \n
              <OL>\n
                <P>The dissolved O2 concentration is usually close to the saturation\n
                level. Strong oversaturation at the surface and O2 deficiency\n
                near bottom sediment are found only in the western part of the\n
                lake in calm summer periods during algal blooms.\n
              </OL>\n
              \n
              <P><B>E5 COD [mg l-1]</B></P>\n
              \n
              <P></P>\n
              \n
              <UL>\n
                <LI>Determined by KMnO4 method.</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    7.86</TD> \n
                    <TD>\n
                    8.60</TD> \n
                    <TD>\n
                    6.50</TD> \n
                    <TD>\n
                    7.38</TD> \n
                    <TD>\n
                    9.80</TD> \n
                    <TD>\n
                    7.72</TD> \n
                    <TD>\n
                    7.96</TD> \n
                    <TD>\n
                    8.00</TD> \n
                    <TD>\n
                    8.07</TD> \n
                    <TD>\n
                    9.80</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    5.96</TD> \n
                    <TD>\n
                    5.10</TD> \n
                    <TD>\n
                    5.00</TD> \n
                    <TD>\n
                    4.68</TD> \n
                    <TD>\n
                    6.32</TD> \n
                    <TD>\n
                    5.64</TD> \n
                    <TD>\n
                    6.04</TD> \n
                    <TD>\n
                    6.45</TD> \n
                    <TD>\n
                    5.95</TD> \n
                    <TD>\n
                    5.00</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    4.88</TD> \n
                    <TD>\n
                    4.80</TD> \n
                    <TD>\n
                    4.02</TD> \n
                    <TD>\n
                    3.26</TD> \n
                    <TD>\n
                    4.70</TD> \n
                    <TD>\n
                    4.46</TD> \n
                    <TD>\n
                    4.46</TD> \n
                    <TD>\n
                    4.67</TD> \n
                    <TD>\n
                    4.43</TD> \n
                    <TD>\n
                    4.90</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E6 CHLOROPHYLL CONCENTRATION [micro g l-1]</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    34.0</TD> \n
                    <TD>\n
                    30.8</TD> \n
                    <TD>\n
                    19.8</TD> \n
                    <TD>\n
                    20.4</TD> \n
                    <TD>\n
                    33.5</TD> \n
                    <TD>\n
                    51.4</TD> \n
                    <TD>\n
                    38.4</TD> \n
                    <TD>\n
                    41.4</TD> \n
                    <TD>\n
                    42.8</TD> \n
                    <TD>\n
                    42.9</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    12.4</TD> \n
                    <TD>\n
                    19.4</TD> \n
                    <TD>\n
                    10.6</TD> \n
                    <TD>\n
                    7.4</TD> \n
                    <TD>\n
                    8.8</TD> \n
                    <TD>\n
                    22.6</TD> \n
                    <TD>\n
                    19.5</TD> \n
                    <TD>\n
                    16.7</TD> \n
                    <TD>\n
                    15.4</TD> \n
                    <TD>\n
                    16.1</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    7.2</TD> \n
                    <TD>\n
                    9.2</TD> \n
                    <TD>\n
                    8.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    5.4</TD> \n
                    <TD>\n
                    9.8</TD> \n
                    <TD>\n
                    11.7</TD> \n
                    <TD>\n
                    10.0</TD> \n
                    <TD>\n
                    6.8</TD> \n
                    <TD>\n
                    5.1</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E7 NITROGEN CONCENTRATION</B></P>\n
              \n
              <UL>\n
                <LI>Total-N [mg l-1] </li><BR>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.81</TD> \n
                    <TD>\n
                    1.85</TD> \n
                    <TD>\n
                    1.23</TD> \n
                    <TD>\n
                    1.50</TD> \n
                    <TD>\n
                    1.39</TD> \n
                    <TD>\n
                    2.01</TD> \n
                    <TD>\n
                    1.51</TD> \n
                    <TD>\n
                    1.57</TD> \n
                    <TD>\n
                    1.72</TD> \n
                    <TD>\n
                    1.94</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    0.98</TD> \n
                    <TD>\n
                    0.90</TD> \n
                    <TD>\n
                    0.92</TD> \n
                    <TD>\n
                    0.87</TD> \n
                    <TD>\n
                    0.99</TD> \n
                    <TD>\n
                    0.87</TD> \n
                    <TD>\n
                    1.19</TD> \n
                    <TD>\n
                    1.09</TD> \n
                    <TD>\n
                    0.63</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    0.93</TD> \n
                    <TD>\n
                    0.80</TD> \n
                    <TD>\n
                    0.72</TD> \n
                    <TD>\n
                    0.61</TD> \n
                    <TD>\n
                    0.70</TD> \n
                    <TD>\n
                    0.79</TD> \n
                    <TD>\n
                    0.71</TD> \n
                    <TD>\n
                    1.07</TD> \n
                    <TD>\n
                    0.69</TD> \n
                    <TD>\n
                    0.59</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E8 PHOSPHORUS CONCENTRATION</B></P>\n
              \n
              <UL>\n
                <LI>Total-P [mg l-1] </li><BR>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    .075</TD> \n
                    <TD>\n
                    .089</TD> \n
                    <TD>\n
                    .068</TD> \n
                    <TD>\n
                    .089</TD> \n
                    <TD>\n
                    .101</TD> \n
                    <TD>\n
                    .104</TD> \n
                    <TD>\n
                    .114</TD> \n
                    <TD>\n
                    .089</TD> \n
                    <TD>\n
                    .143</TD> \n
                    <TD>\n
                    .078</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    .032</TD> \n
                    <TD>\n
                    .052</TD> \n
                    <TD>\n
                    .036</TD> \n
                    <TD>\n
                    .033</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .037</TD> \n
                    <TD>\n
                    .039</TD> \n
                    <TD>\n
                    .040</TD> \n
                    <TD>\n
                    .059</TD> \n
                    <TD>\n
                    .043</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    .024</TD> \n
                    <TD>\n
                    .028</TD> \n
                    <TD>\n
                    .034</TD> \n
                    <TD>\n
                    .022</TD> \n
                    <TD>\n
                    .027</TD> \n
                    <TD>\n
                    .028</TD> \n
                    <TD>\n
                    .033</TD> \n
                    <TD>\n
                    .043</TD> \n
                    <TD>\n
                    .031</TD> \n
                    <TD>\n
                    .028</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <P><B>F1 FLORA (4)</B></P>\n
              \n
              <UL>\n
                <LI>Emerged macrophytes: Phragmites australis, Typha latifolia.</li>\n
                <LI>Floating macrophytes <BR>\n
                Lemna minor, L. trisulca, L. gibba, Spirodela polyrrhiza, Wolffia\n
                arrhiza, Hydrocharis morsus-ranae, Nymphaea alba, Nuphar luteum,\n
                Trapa natans.</li>\n
                <LI>Submerged macrophytes <BR>\n
                Potamogeton perfoliatus, P. crispus, P. pectinatus, Najas marina,\n
                Stratiotes alloides, Ceratophyllum demersum, Myriophyllum spicatum.</li>\n
                <LI>Phytoplankton <BR>\n
                Spring Nitzschia acicularis, Cyclotella ocellata, C. bodanica,\n
                Stefanodiscus hantzschii. Summer: Eastern part Ceratium hirundinella,\n
                Melosira granulata, Botryococcus braunii. Summer: western part\n
                Anabaenopsis raciborskii, Anabaena spiroides, A. aphanizomenoides,\n
                Aphanizomenon flos-aquae.</li>\n
              </UL>\n
              \n
              <P><B>F2 FAUNA (5)</B></P>\n
              \n
              <UL>\n
                <LI>Zooplankton <BR>\n
                Polyarthra vulgaris, Keratella quadrata, Pompholyx sulcata. Daphnia\n
                cucullata, D. galeata, Eudiaptomus gracilis, Mesocyclops leucarti,\n
                Cyclops vicinus.</li>\n
                <LI>Benthos <BR>\n
                Ectinosoma abrau, Darwinula stevensoni, Potamothrix hammoniensis,\n
                Tanypus punctipennis, Lithoglyphus naticoides, Dreissena polymorpha.</li>\n
                <LI>Fish <BR>\n
                Abramis brama*, Cyprinus carpio*, Stizostedion lucioperca*, Aspius\n
                aspius, Pelecus cultratus, Esox lucius, Anguilla anguilla*. *\n
                Economically important.</li>\n
              </UL>\n
              \n
              <P><B>F3 PRIMARY PRODUCTION RATE [mg C m-2 day-1](6, 7)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1973</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    312</TD> \n
                    <TD>\n
                    447</TD> \n
                    <TD>\n
                    524</TD> \n
                    <TD>\n
                    594</TD> \n
                    <TD>\n
                    726</TD> \n
                    <TD>\n
                    858</TD> \n
                    <TD>\n
                    6,640</TD> \n
                    <TD>\n
                    6,628</TD> \n
                    <TD>\n
                    2,265</TD> \n
                    <TD>\n
                    126</TD> \n
                    <TD>\n
                    434</TD> \n
                    <TD>\n
                    373</TD> \n
                    <TD>\n
                    613*</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1976</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    127</TD> \n
                    <TD>\n
                    96</TD> \n
                    <TD>\n
                    447</TD> \n
                    <TD>\n
                    432</TD> \n
                    <TD>\n
                    496</TD> \n
                    <TD>\n
                    988</TD> \n
                    <TD>\n
                    1,551</TD> \n
                    <TD>\n
                    1,132</TD> \n
                    <TD>\n
                    841</TD> \n
                    <TD>\n
                    386</TD> \n
                    <TD>\n
                    214</TD> \n
                    <TD>\n
                    159</TD> \n
                    <TD>\n
                    210*</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1977</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    103</TD> \n
                    <TD>\n
                    105</TD> \n
                    <TD>\n
                    248</TD> \n
                    <TD>\n
                    616</TD> \n
                    <TD>\n
                    633</TD> \n
                    <TD>\n
                    951</TD> \n
                    <TD>\n
                    1,228</TD> \n
                    <TD>\n
                    847</TD> \n
                    <TD>\n
                    638</TD> \n
                    <TD>\n
                    313</TD> \n
                    <TD>\n
                    203</TD> \n
                    <TD>\n
                    41</TD> \n
                    <TD>\n
                    181*</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    * [g C m-2 yr-1].</TD>\n
                     \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>F4 BIOMASS</B></P>\n
              \n
              <UL>\n
                <LI>Zooplankton: 2.5 [g (dry wt.) m-2].</li>\n
                <LI>Zoobenthos: 2.7 [g (dry wt.) m-2].</li>\n
                <LI>Fish [ton(wet wt.) per lake] <BR>\n
                Abramis brama: 9578. Stizostedion lucioperca: 578.</li>\n
              </UL>\n
              \n
              <P><B>F5 FISHERY PRODUCTS</B></P>\n
              \n
              <UL>\n
                <LI>Annual fish catch [metric tons] <BR>\n
                1985: 1,315.</li>\n
              </UL>\n
              \n
              <P><B>F6 PAST TRENDS: Fig. EUR-04-02, 03, 04, 05 and 06.</B></P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-02.gif" width="346" height="268"></p>\n
                <p>Fig. EUR-04-02<BR>\n
                  Trend of increase of primary production in the Keszthely-basin\n
                  (6).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-03.gif" width="357" height="277"></p>\n
                <p>Fig. EUR-04-03<BR>\n
                  Trend of increase of algae counts in the Keszthely-basin (4).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-04.gif" width="418" height="263"></p>\n
                <p>Fig. EUR-04-04<BR>\n
                  Trend of increase of algae counts in the Siofok-basin (4).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-05.gif" width="416" height="305"></p>\n
                <p>Fig. EUR-04-05<BR>\n
                  Trend of increase of phytoplankton biomass in the Keszthely-basin\n
                  (4).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-06.gif" width="392" height="294"></p>\n
                <p>Fig. EUR-04-06<BR>\n
                  Trend of increase of phytoplankton biomass in the Siofok-basin\n
                  (4).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              <BR>\n
              </P>\n
              \n
              <H3>G. SOCIO-ECONOMIC CONDITIONS (8)</H3>\n
              \n
              <P><B>G1 LAND USE IN THE CATCHMENT AREA</B></P>\n
              \n
              <P></P>\n
              \n
              <OL>\n
                <P>1982 <TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Area [km2]</TH> \n
                    <TH>\n
                    [%]</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Natural landscape</TD> \n
                    <TD></TD>\n
                    <TD WIDTH="34%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Woody vegetation</TD> \n
                    <TD>\n
                    1,343</TD> \n
                    <TD>\n
                    25.9</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Herbaceous vegetation</TD> \n
                    <TD>\n
                    362</TD> \n
                    <TD>\n
                    7.0</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Swamp</TD> \n
                    <TD>\n
                    106</TD> \n
                    <TD>\n
                    2.0</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Agricultural land</TD> \n
                    <TD></TD>\n
                    <TD WIDTH="34%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Crop field</TD> \n
                    <TD>\n
                    2,428</TD> \n
                    <TD>\n
                    46.9</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Pasture land</TD> \n
                    <TD>\n
                    505</TD> \n
                    <TD>\n
                    9.7</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Residential area</TD> \n
                    <TD>\n
                    437</TD> \n
                    <TD>\n
                    8.4</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Others</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Total</TD> \n
                    <TD>\n
                    5,181</TD> \n
                    <TD>\n
                    100.0</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Main types of woody vegetation <BR>\n
                Deciduous forest (Carpinus betulus, Quercus petraea, Acer campestris,\n
                Quercus pubescens, Quercus cerris, Fraxinus ornus).</li>\n
                <LI>Main kinds of crops: Wheat, maize, hay, grape and fruits.</li>\n
                <LI>Levels of fertilized application on crop fields <BR>\n
                Heavy (121 kg N + 90 kg P2O5 + 126 kg K2O ha-1 yr-1).</li>\n
              </UL>\n
              \n
              <P><B>G2 INDUSTRIES IN THE CATCHMENT AREA AND THE LAKE</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="4">\n
                    1980</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    No. of persons engaged</TH> \n
                    <TH>\n
                    No. of establishments</TH> \n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Primary industry</TD> \n
                    <TD>\n
                    46,400</TD> \n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Animal husbandry</TD> \n
                    <TD></TD>\n
                    <TD>\n
                    334</TD> \n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Secondary industry</TD> \n
                    <TD>\n
                    65,200</TD> \n
                    <TD>\n
                    741</TD> \n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Tertiary industry</TD> \n
                    <TD>\n
                    78,900</TD> \n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Numbers of domestic animals in the catchment area <BR>\n
                Cattle 90,000, Sheep 110,000, Swine 220,000, Poultry 1,500,000.</li>\n
              </UL>\n
              \n
              <P><B>G3 POPULATION IN THE CATCHMENT AREA</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Population</TH> \n
                    <TH>\n
                    Population density [km-2]</TH> \n
                    <TH>\n
                    Major cities (population)</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Urban</TD> \n
                    <TD>\n
                    180,500</TD> \n
                    <TD></TD>\n
                    <TD>\n
                    Zalaegerszeg, Tapolca,</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Rural</TD> \n
                    <TD>\n
                    224,300</TD> \n
                    <TD></TD>\n
                    <TD>\n
                    Marcali, Keszthely,</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Total</TD> \n
                    <TD>\n
                    404,800</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    Siofok, Balatonfured</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>H. LAKE UTILIZATION</H3>\n
              \n
              <P><B>H1 LAKE UTILIZATION</B></P>\n
              \n
              <P></P>\n
              \n
              <OL>\n
                <P>Source of water, navigation and transportation, sightseeing\n
                and tourism (no.of visitors in 1982: 1,800,000), recreation (swimming,\n
                sport-fishing,yachting) and fisheries.\n
              </OL>\n
              \n
              <P><B>H2 THE LAKE AS WATER RESOURCE</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Use rate [m3 sec-1]</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Domestic</TD> \n
                    <TD>\n
                    0.273</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Irrigation</TD> \n
                    <TD>\n
                    0.079</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Industrial</TD> \n
                    <TD>\n
                    0.330</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Power plant</TD> \n
                    <TD>\n
                    -</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Others</TD> \n
                    <TD>\n
                    -</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS</H3>\n
              \n
              <P><B>I1 ENHANCED SILTATION</B></P>\n
              \n
              <UL>\n
                <LI>Extent of damage: Not serious.</li>\n
              </UL>\n
              \n
              <P><B>I2 TOXIC CONTAMINATION (9)</B></P>\n
              \n
              <UL>\n
                <LI>Present status: Detected but not serious.</li>\n
                <LI>Main contaminants, their concentrations and sources (lake\n
                average)</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH ROWSPAN="2">\n
                    Name of contaminant</TH> \n
                    <TH COLSPAN="6">\n
                    Range of concentration [ppm] in*1</TH>\n
                     \n
                    <TH ROWSPAN="2">\n
                    Main sources</TH> \n
                  </TR>\n
                  <TR>\n
                     \n
                    <TH>\n
                    Water</TH> \n
                    <TH>\n
                    Bottom mud</TH> \n
                    <TH>\n
                    Fish*2</TH>\n
                    <TH COLSPAN="3">\n
                    Other organisms</TH>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    1982</TD> \n
                    <TD>\n
                    1984</TD> \n
                    <TD>\n
                    1982</TD> \n
                    <TD>\n
                    1982*3</TD> \n
                    <TD>\n
                    1982*4</TD> \n
                    <TD>\n
                    1982*5</TD> \n
                    <TD WIDTH="13%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Cu</TD> \n
                    <TD>\n
                    (0.005)</TD> \n
                    <TD>\n
                    (10)</TD> \n
                    <TD>\n
                    (3.12)</TD> \n
                    <TD>\n
                    (12.3)</TD> \n
                    <TD>\n
                    (18.6)</TD> \n
                    <TD>\n
                    (42.5)</TD> \n
                    <TD>\n
                    Waste</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Zn</TD> \n
                    <TD>\n
                    (0.057)</TD> \n
                    <TD>\n
                    (90)</TD> \n
                    <TD>\n
                    (64.3)</TD> \n
                    <TD>\n
                    (468)</TD> \n
                    <TD>\n
                    (73.5)</TD> \n
                    <TD>\n
                    (111)</TD> \n
                    <TD>\n
                    dumps and</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Ca</TD> \n
                    <TD>\n
                    (0.0008)</TD> \n
                    <TD>\n
                    (1.5)</TD> \n
                    <TD>\n
                    (0.65)</TD> \n
                    <TD>\n
                    (3.7)</TD> \n
                    <TD>\n
                    (3.99)</TD> \n
                    <TD>\n
                    (1.47)</TD> \n
                    <TD>\n
                    agriculture</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Hg</TD> \n
                    <TD>\n
                    (0.0007)</TD> \n
                    <TD>\n
                    (-)</TD> \n
                    <TD>\n
                    (0.36)</TD> \n
                    <TD>\n
                    (1.22)</TD> \n
                    <TD>\n
                    (1.88)</TD> \n
                    <TD>\n
                    (1.08)</TD> \n
                    <TD></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Pb</TD> \n
                    <TD>\n
                    (0.002)</TD> \n
                    <TD>\n
                    (30)</TD> \n
                    <TD>\n
                    (3.59)</TD> \n
                    <TD>\n
                    (48.5)</TD> \n
                    <TD>\n
                    (22.1)</TD> \n
                    <TD>\n
                    (12.3)</TD> \n
                    <TD></TD>\n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *1 For water on volume basis mg l-1; for bottom mud, fish and\n
                    other organisms on dry weight basis mg kg-1.</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *2 Abramis brama, muscle.</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *3 Anodonta oygnea, pill.</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *4 Chironomidae larvae, whole animals.</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *5 Crustacean plankton.</TD>\n
                     \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>I3 EUTROPHICATION</B></P>\n
              \n
              <UL>\n
                <LI>Nuisance caused by eutrophication <BR>\n
                Unusual algal bloom (Dominant species of algae Aphanizomenon\n
                flos-aquae, Anabaenopsis raciborskii, Anabaena aphanizomenoides,\n
                Anabaena spiroides).</li>\n
                <LI>Nitrogen and phosphorus loadings to the lake [t yr-1] <BR>\n
                whole lake basin,</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="6">\n
                    1975-1981</TD>\n
                     \n
                    <TD WIDTH="15%"></TD>\n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Sources</TH> \n
                    <TH>\n
                    Industrial</TH> \n
                    <TH>\n
                    Domestic</TH> \n
                    <TH>\n
                    Agricultural</TH> \n
                    <TH>\n
                    Natural</TH> \n
                    <TH>\n
                    Total</TH> \n
                    <TD WIDTH="15%"></TD>\n
                  </TR>\n
                  <TR>\n
                    <TD>\n
                    T-N</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    382</TD> \n
                    <TD>\n
                    1,973</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    3,148</TD> \n
                    <TD></TD>\n
                  </TR>\n
                  <TR>\n
                    <TD>\n
                    T-P</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    89</TD> \n
                    <TD>\n
                    150</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    314</TD> \n
                    <TD WIDTH="15%"></TD>\n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Supplementary notes <BR>\n
                The following measures are being taken to prevent further eutrophication.</li>\n
                <OL>\n
                  <LI>Development of sewerage and sewage treatment plants.</li>\n
                  <LI>Phosphorus removal at sewage treatment plants.</li>\n
                  <LI>Diversion of a greater part of treated effluents produced\n
                  in recreational areas from the watershed of the lake.</li>\n
                  <LI>Establishment of reservoirs on larger tributaries to retain\n
                  plant nutrients.</li>\n
                  <LI>Elimination of large livestock breeding farms from the watershed\n
                  or the assurance of full agricultural utilization of their wastes\n
                  (mainly liquid manure).</li>\n
                  <LI>Removal of the surface layer of lake sediments in areas of\n
                  high phosphorus accumulation.</li>\n
                  <LI>Land reclamation and soil amelioration.</li>\n
                </OL>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>J. WASTEWATER TREATMENTS (Q)</H3>\n
              \n
              <P><B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B></P>\n
              \n
              <OL>\n
                <P>f) Extensive development of the catchment area with provision\n
                for municipal wastewater treatment.\n
              </OL>\n
              \n
              <P><B>J3 SANITARY FACILITIES AND SEWERAGE</B></P>\n
              \n
              <UL>\n
                <LI>Percentage of municipal population in the catchment area\n
                provided with <BR>\n
                adequate sanitary facilities (on-site treatment systems) or public\n
                sewerage: 100%.</li>\n
                <LI>Percentage of rural population with adequate sanitary facilities\n
                (on-site <BR>\n
                treatment systems): 100%.</li>\n
                <LI>Municipal wastewater treatment systems <BR>\n
                No. of tertiary treatment systems: 6 (64,000 m3 day-1); P removal\n
                by aluminum sulphate. No. of secondary treatment systems: 17\n
                (75,000 m3 day-1).</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>M. LEGISLATIVE AND INSTITUTIONAL MEASURES FOR UPGRADING LAKE\n
              ENVIRONMENTS</H3>\n
              \n
              <P><B>M1 NATIONAL AND LOCAL LAWS CONCERNED</B></P>\n
              \n
              <UL>\n
                <LI>Names of the laws (the year of legislation)</li>\n
                <OL>\n
                  <LI>Hungarian Water Act (1964)</li>\n
                  <LI>Environment Protection Act (1976)</li>\n
                  <LI>Revision of the Water Resources Development Program of the\n
                  Lake Balaton Area (1979)</li>\n
                  <LI>Resolution of the Council of Ministers on Restoration of\n
                  Water Quality of Lake Balaton (1983)</li>\n
                </OL>\n
                <LI>Responsible authorities\n
                <OL>\n
                  <LI>National Water Authority</li>\n
                  <LI>Ministry of Public Health</li>\n
                  <LI>Ministry of Agriculture</li>\n
                  <LI>Ministry of Construction and Town Development</li>\n
                  <LI>National Authority for Environment Protection and Nature\n
                  Conservation</li>\n
                </OL>\n
              </UL>\n
              \n
              <P><B>M2 INSTITUTIONAL MEASURES</B></P>\n
              \n
              <OL>\n
                <LI>National Water Authority</li>\n
              </OL>\n
              \n
              <P><B>M3 RESEARCH INSTITUTES ENGAGED IN THE LAKE ENVIRONMENT STUDIES</B></P>\n
              \n
              <OL>\n
                <LI>Balaton Limnological Research Institute of the Hungarian\n
                Academy of Sciences, Tihany</li>\n
                <LI>Research Centre for Water Resources Development</li>\n
                <LI>National Public Health Institute</li>\n
                <LI>Karl Marx University of Economics</li>\n
                <LI>Scientific and Design Institute for Urban Planning</li>\n
                <LI>Institute for Environmental Protection</li>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Supplementary notes <BR>\n
                Thirty other research institutes, university chairs and other\n
                agencies participated in the research program coordinated by\n
                the above institutions.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
                <LI TYPE="a" VALUE="17">Questionnaire filled by Dr. S. Herodek,\n
                Balaton Limnological Research Institute of the Hungarian Academy\n
                of Sciences, Tihany.</li>\n
                <LI TYPE="1" VALUE="1">Illes I. (ed.)(1981) Our Lake Balaton.\n
                Natura Press, Budapest (in Hungarian).</li>\n
                <LI>National Meteorological Service-Data Bank.</li>\n
                <LI>Research Centre for Water Resources Development-Data Bank.</li>\n
                <LI>Voros, L. (1985) Phytoplankton changes in space and time\n
                in Lake Balaton. D. Sc. Thesis (in Hungarian).</li>\n
                <LI>Ponyi, J. E. (1986) Pelagic and benthic invertebrates of\n
                Lake Balaton and their ecology. D. Sc. Thesis (in Hungarian).</li>\n
                <LI>Herodek, S. &amp; Tamas, G. (1976) The primary production of\n
                phytoplankton in the Keszthely-basin of Lake Balaton in 1973-1974.\n
                Annal. Biol. Tihany, 42: 175-190.</li>\n
                <LI>Herodek, S., Voros, L. &amp; Toth, F. (1982) The mass and production\n
                of phytoplankton and the eutrophication in Lake Balaton III.\n
                The Balatonszemes basin in 1976-1977 and the Siofok basin in\n
                1977. Hidrol. Kozl., 62: 220-229 (in Hungarian with English summary).</li>\n
                <LI>National Authority for Environment Protection and Nature\n
                Conservation (1984) Balaton 1982.</li>\n
                <LI>Salanki, J. V., Balogh, K. &amp; Berta, E. (1982) Heavy metals\n
                in animals of Lake Balaton. Water Research, 16: 1147-1152.</li>\n
              </OL>\n
              \n
              \n
              \n
              """
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            "created_at" => "2020-04-23 09:03:37"
            "updated_at" => "2020-06-03 14:04:40"
          ]
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            "file_type" => "6"
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            "file_title" => "World Lake Data Book"
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            "html" => """
              \n
              \n
              \n
              \n
              \n
              <H2>LAKE BALATON</H2>\n
              \n
              <P><B>From the rooftop of Balaton Limnological Research\n
              Institue, Tihany</B><BR>\n
              <BR>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-00.jpg" ALT="Photo." WIDTH="380" HEIGHT="259"\n
              NATURALSIZEFLAG="0" ALIGN="BOTTOM"><BR>\n
              Photo: A. Kurata</P>\n
              \n
              <P><BR>\n
              <BR>\n
              <BR>\n
              </P>\n
              \n
              <H3>A. LOCATION</H3>\n
              \n
              <UL>\n
                <LI>Somogy and Veszprem, Hungary.</li>\n
                <LI>46:42-47:04N, 17:15-18:10E; 104.8* m above sea level. </li><BR>\n
                * Adriatic.\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3><BR>\n
              <BR>\n
              <BR>\n
              B. DESCRIPTION</H3>\n
              \n
              </H3></H3></H3>\n
              \n
              <OL>\n
                <P>Lake Balaton was formed mainly by tectonic\n
                forces 12,000-20,000 years ago. Prior to the opening of Sio-canal\n
                in 1863, its water level was 3 m higher and its surface was about\n
                twice larger than at the present. With its surface area of 593\n
                km2, Lake Balaton is the largest lake in Central Europe, but\n
                its mean depth is only 3.2 m. <BR>\n
                The main inflow, the Zala River, empties\n
                into the southwestern end of the lake, while the Sio-canal drains\n
                the water from the eastern basin into the River Danube. <BR>\n
                The lake is covered by ice in winter. In\n
                summer the average water temperature is 23deg C. The strong waves\n
                swirl up much sediments, rendering the transparency low. <BR>\n
                The major ions of the water are Ca2+, Mg2+\n
                and HCO3-. The pH is 8.4, rising to higher values during intensive\n
                primary production. Oxygen deficiency is formed only temporarily\n
                in the western part of the lake in calm summer periods with algal\n
                blooms. <BR>\n
                The distribution of macrophytes is restricted\n
                by strong waves to a relatively narrow belt. Only 3 percent of\n
                the lake surface is covered by reeds, and even less by submerged\n
                macrophytes. The major primary producers are phytoplankton. Zooplankton\n
                is not abundant. Zoobenthos represents an important food for\n
                the fish. The annual commercial fish catch is 1200 tons. <BR>\n
                The southern shore of the lake consists\n
                of sandy beach, while on the northern shore there are mountains\n
                of volcanic origin with old ruins on their tops and vineyards\n
                on their slopes. The picturesque landscape and the water ideal\n
                for swimming and other water sports attract 2 million tourists\n
                annually. <BR>\n
                The sewage discharge from rapidly developing\n
                towns in the watershed, the growing use of fertilizers in agriculture\n
                and large animal farms increased the nutrient loading to the\n
                lake in the last decades. A rapid eutrophication became apparent\n
                by increased production and biomass of phytoplankton. Blooms\n
                of blue-green algae are frequent in the most polluted western\n
                part of the lake. <BR>\n
                A eutrophication\n
                control program has been formulated, based on intensive scientific\n
                researches. Most of the municipal sewage is now diverted from\n
                recreational areas. Phosphorus removal was introduced at other\n
                sewage treatment plants. A reservoir was constructed to retain\n
                the nutrients carried by the Zala River. Pollution due to liquid\n
                manure was reduced. Construction of more reservoirs on major\n
                tributaries of the lake and a soil protection program are in\n
                progress (Q). <BR>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>C. PHYSICAL DIMENSIONS</H3>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Surface area [km2]</TD> \n
                    <TD>\n
                    593</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Volume [km3]</TD> \n
                    <TD>\n
                    1.9</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Maximum depth [m]</TD> \n
                    <TD>\n
                    12.2</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Mean depth [m]</TD> \n
                    <TD>\n
                    3.3</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Water level</TD> \n
                    <TD>\n
                    Regulated</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Normal range of annual water level fluctuation [m]</TD> \n
                    <TD>\n
                    0.3</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Length of shoreline [km]</TD> \n
                    <TD>\n
                    236</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Residence time [yr]</TD> \n
                    <TD>\n
                    2</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Catchment area [km2]</TD> \n
                    <TD>\n
                    5,181</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>D. PHYSIOGRAPHIC FEATURES (2)</H3>\n
              \n
              <P><B>D1 GEOGRAPHICAL</B></P>\n
              \n
              <UL>\n
                <LI></li>  \n
                <LI>Bathymetric map: Fig. EUR-04-01.</li>\n
                <LI>Names of main islands: None.</li>\n
                <LI>Number of outflowing rivers and channels (name): 1 (Sio-canal).</li>\n
              </UL>\n
              \n
              <P><B>D2 CLIMATIC</B></P>\n
              \n
              <UL>\n
                <LI>Climatic data at Siofok</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Mean temp. [deg C]*1</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    -1.4</TD> \n
                    <TD>\n
                    0.6</TD> \n
                    <TD>\n
                    5.0</TD> \n
                    <TD>\n
                    10.7</TD> \n
                    <TD>\n
                    15.6</TD> \n
                    <TD>\n
                    19.4</TD> \n
                    <TD>\n
                    20.8</TD> \n
                    <TD>\n
                    20.2</TD> \n
                    <TD>\n
                    16.3</TD> \n
                    <TD>\n
                    10.8</TD> \n
                    <TD>\n
                    5.6</TD> \n
                    <TD>\n
                    1.0</TD> \n
                    <TD>\n
                    10.4</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Precipitation [mm]*2</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    36.5</TD> \n
                    <TD>\n
                    37.7</TD> \n
                    <TD>\n
                    35.6</TD> \n
                    <TD>\n
                    44.7</TD> \n
                    <TD>\n
                    60.4</TD> \n
                    <TD>\n
                    80.8</TD> \n
                    <TD>\n
                    73.3</TD> \n
                    <TD>\n
                    62.4</TD> \n
                    <TD>\n
                    48.4</TD> \n
                    <TD>\n
                    42.9</TD> \n
                    <TD>\n
                    65.5</TD> \n
                    <TD>\n
                    45.7</TD> \n
                    <TD>\n
                    633.9</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    *1 1947-1963. *2 1951-1980.</TD>\n
                     \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Number of hours of bright sunshine (1951-1980): 2,052 hr\n
                yr-1.</li>\n
                <LI>Solar radiation (1931-1960): 12.2 MJ m-2 day-1.</li>\n
              </UL>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-01.gif" width="415" height="276"></p>\n
                <p>Fig. EUR-04-01<BR>\n
                  Bathymetric map (Q).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <UL>\n
                <LI>Water temperature [deg C]</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    1947-1963</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    11.5</TD> \n
                    <TD>\n
                    17.6</TD> \n
                    <TD>\n
                    21.9</TD> \n
                    <TD>\n
                    23.2</TD> \n
                    <TD>\n
                    22.9</TD> \n
                    <TD>\n
                    19.2</TD> \n
                    <TD>\n
                    13.3</TD> \n
                    <TD>\n
                    6.9</TD> \n
                    <TD>\n
                    2.0</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Freezing period (1927-1963): 4 January-24 February.</li>\n
                <LI>Mixing type: Polymictic.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>E. LAKE WATER QUALITY (3)</H3>\n
              \n
              <P><B>E1 TRANSPARENCY [m]</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    0.49</TD> \n
                    <TD>\n
                    0.38</TD> \n
                    <TD>\n
                    0.50</TD> \n
                    <TD>\n
                    0.47</TD> \n
                    <TD>\n
                    0.50</TD> \n
                    <TD>\n
                    0.35</TD> \n
                    <TD>\n
                    0.41</TD> \n
                    <TD>\n
                    0.46</TD> \n
                    <TD>\n
                    0.50</TD> \n
                    <TD>\n
                    0.65</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    0.72</TD> \n
                    <TD>\n
                    0.48</TD> \n
                    <TD>\n
                    0.49</TD> \n
                    <TD>\n
                    0.56</TD> \n
                    <TD>\n
                    0.69</TD> \n
                    <TD>\n
                    0.45</TD> \n
                    <TD>\n
                    0.64</TD> \n
                    <TD>\n
                    0.53</TD> \n
                    <TD>\n
                    0.60</TD> \n
                    <TD>\n
                    0.52</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    0.71</TD> \n
                    <TD>\n
                    0.45</TD> \n
                    <TD>\n
                    0.45</TD> \n
                    <TD>\n
                    0.71</TD> \n
                    <TD>\n
                    0.67</TD> \n
                    <TD>\n
                    0.55</TD> \n
                    <TD>\n
                    0.69</TD> \n
                    <TD>\n
                    0.70</TD> \n
                    <TD>\n
                    0.57</TD> \n
                    <TD>\n
                    1.25</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E2 pH</B></P>\n
              \n
              <OL>\n
                <P>8.4, rising to 8.9 in the western part of the lake during\n
                summer algal blooms.\n
              </OL>\n
              \n
              <P><B>E3 SS [mg l-1]</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    34.1</TD> \n
                    <TD>\n
                    39.6</TD> \n
                    <TD>\n
                    27.6</TD> \n
                    <TD>\n
                    40.6</TD> \n
                    <TD>\n
                    23.1</TD> \n
                    <TD>\n
                    31.7</TD> \n
                    <TD>\n
                    23.4</TD> \n
                    <TD>\n
                    25.8</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    14.5</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    20.7</TD> \n
                    <TD>\n
                    22.2</TD> \n
                    <TD>\n
                    22.5</TD> \n
                    <TD>\n
                    13.9</TD> \n
                    <TD>\n
                    16.4</TD> \n
                    <TD>\n
                    29.1</TD> \n
                    <TD>\n
                    13.5</TD> \n
                    <TD>\n
                    22.6</TD> \n
                    <TD>\n
                    56.0</TD> \n
                    <TD>\n
                    13.4</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    16.1</TD> \n
                    <TD>\n
                    19.7</TD> \n
                    <TD>\n
                    23.9</TD> \n
                    <TD>\n
                    13.7</TD> \n
                    <TD>\n
                    25.0</TD> \n
                    <TD>\n
                    23.1</TD> \n
                    <TD>\n
                    13.6</TD> \n
                    <TD>\n
                    18.6</TD> \n
                    <TD>\n
                    20.1</TD> \n
                    <TD>\n
                    4.9</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E4 DO [mg l-1]</B></P>\n
              \n
              <P></P>\n
              \n
              <OL>\n
                <P>The dissolved O2 concentration is usually close to the saturation\n
                level. Strong oversaturation at the surface and O2 deficiency\n
                near bottom sediment are found only in the western part of the\n
                lake in calm summer periods during algal blooms.\n
              </OL>\n
              \n
              <P><B>E5 COD [mg l-1]</B></P>\n
              \n
              <P></P>\n
              \n
              <UL>\n
                <LI>Determined by KMnO4 method.</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    7.86</TD> \n
                    <TD>\n
                    8.60</TD> \n
                    <TD>\n
                    6.50</TD> \n
                    <TD>\n
                    7.38</TD> \n
                    <TD>\n
                    9.80</TD> \n
                    <TD>\n
                    7.72</TD> \n
                    <TD>\n
                    7.96</TD> \n
                    <TD>\n
                    8.00</TD> \n
                    <TD>\n
                    8.07</TD> \n
                    <TD>\n
                    9.80</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    5.96</TD> \n
                    <TD>\n
                    5.10</TD> \n
                    <TD>\n
                    5.00</TD> \n
                    <TD>\n
                    4.68</TD> \n
                    <TD>\n
                    6.32</TD> \n
                    <TD>\n
                    5.64</TD> \n
                    <TD>\n
                    6.04</TD> \n
                    <TD>\n
                    6.45</TD> \n
                    <TD>\n
                    5.95</TD> \n
                    <TD>\n
                    5.00</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    4.88</TD> \n
                    <TD>\n
                    4.80</TD> \n
                    <TD>\n
                    4.02</TD> \n
                    <TD>\n
                    3.26</TD> \n
                    <TD>\n
                    4.70</TD> \n
                    <TD>\n
                    4.46</TD> \n
                    <TD>\n
                    4.46</TD> \n
                    <TD>\n
                    4.67</TD> \n
                    <TD>\n
                    4.43</TD> \n
                    <TD>\n
                    4.90</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E6 CHLOROPHYLL CONCENTRATION [micro g l-1]</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    34.0</TD> \n
                    <TD>\n
                    30.8</TD> \n
                    <TD>\n
                    19.8</TD> \n
                    <TD>\n
                    20.4</TD> \n
                    <TD>\n
                    33.5</TD> \n
                    <TD>\n
                    51.4</TD> \n
                    <TD>\n
                    38.4</TD> \n
                    <TD>\n
                    41.4</TD> \n
                    <TD>\n
                    42.8</TD> \n
                    <TD>\n
                    42.9</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    12.4</TD> \n
                    <TD>\n
                    19.4</TD> \n
                    <TD>\n
                    10.6</TD> \n
                    <TD>\n
                    7.4</TD> \n
                    <TD>\n
                    8.8</TD> \n
                    <TD>\n
                    22.6</TD> \n
                    <TD>\n
                    19.5</TD> \n
                    <TD>\n
                    16.7</TD> \n
                    <TD>\n
                    15.4</TD> \n
                    <TD>\n
                    16.1</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    7.2</TD> \n
                    <TD>\n
                    9.2</TD> \n
                    <TD>\n
                    8.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    5.4</TD> \n
                    <TD>\n
                    9.8</TD> \n
                    <TD>\n
                    11.7</TD> \n
                    <TD>\n
                    10.0</TD> \n
                    <TD>\n
                    6.8</TD> \n
                    <TD>\n
                    5.1</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E7 NITROGEN CONCENTRATION</B></P>\n
              \n
              <UL>\n
                <LI>Total-N [mg l-1] </li><BR>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.81</TD> \n
                    <TD>\n
                    1.85</TD> \n
                    <TD>\n
                    1.23</TD> \n
                    <TD>\n
                    1.50</TD> \n
                    <TD>\n
                    1.39</TD> \n
                    <TD>\n
                    2.01</TD> \n
                    <TD>\n
                    1.51</TD> \n
                    <TD>\n
                    1.57</TD> \n
                    <TD>\n
                    1.72</TD> \n
                    <TD>\n
                    1.94</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    0.98</TD> \n
                    <TD>\n
                    0.90</TD> \n
                    <TD>\n
                    0.92</TD> \n
                    <TD>\n
                    0.87</TD> \n
                    <TD>\n
                    0.99</TD> \n
                    <TD>\n
                    0.87</TD> \n
                    <TD>\n
                    1.19</TD> \n
                    <TD>\n
                    1.09</TD> \n
                    <TD>\n
                    0.63</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    0.93</TD> \n
                    <TD>\n
                    0.80</TD> \n
                    <TD>\n
                    0.72</TD> \n
                    <TD>\n
                    0.61</TD> \n
                    <TD>\n
                    0.70</TD> \n
                    <TD>\n
                    0.79</TD> \n
                    <TD>\n
                    0.71</TD> \n
                    <TD>\n
                    1.07</TD> \n
                    <TD>\n
                    0.69</TD> \n
                    <TD>\n
                    0.59</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E8 PHOSPHORUS CONCENTRATION</B></P>\n
              \n
              <UL>\n
                <LI>Total-P [mg l-1] </li><BR>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    .075</TD> \n
                    <TD>\n
                    .089</TD> \n
                    <TD>\n
                    .068</TD> \n
                    <TD>\n
                    .089</TD> \n
                    <TD>\n
                    .101</TD> \n
                    <TD>\n
                    .104</TD> \n
                    <TD>\n
                    .114</TD> \n
                    <TD>\n
                    .089</TD> \n
                    <TD>\n
                    .143</TD> \n
                    <TD>\n
                    .078</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    .032</TD> \n
                    <TD>\n
                    .052</TD> \n
                    <TD>\n
                    .036</TD> \n
                    <TD>\n
                    .033</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .037</TD> \n
                    <TD>\n
                    .039</TD> \n
                    <TD>\n
                    .040</TD> \n
                    <TD>\n
                    .059</TD> \n
                    <TD>\n
                    .043</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1979-1983</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    .024</TD> \n
                    <TD>\n
                    .028</TD> \n
                    <TD>\n
                    .034</TD> \n
                    <TD>\n
                    .022</TD> \n
                    <TD>\n
                    .027</TD> \n
                    <TD>\n
                    .028</TD> \n
                    <TD>\n
                    .033</TD> \n
                    <TD>\n
                    .043</TD> \n
                    <TD>\n
                    .031</TD> \n
                    <TD>\n
                    .028</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>F. BIOLOGICAL FEATURES</H3>\n
              \n
              <P><B>F1 FLORA (4)</B></P>\n
              \n
              <UL>\n
                <LI>Emerged macrophytes: Phragmites australis, Typha latifolia.</li>\n
                <LI>Floating macrophytes <BR>\n
                Lemna minor, L. trisulca, L. gibba, Spirodela polyrrhiza, Wolffia\n
                arrhiza, Hydrocharis morsus-ranae, Nymphaea alba, Nuphar luteum,\n
                Trapa natans.</li>\n
                <LI>Submerged macrophytes <BR>\n
                Potamogeton perfoliatus, P. crispus, P. pectinatus, Najas marina,\n
                Stratiotes alloides, Ceratophyllum demersum, Myriophyllum spicatum.</li>\n
                <LI>Phytoplankton <BR>\n
                Spring Nitzschia acicularis, Cyclotella ocellata, C. bodanica,\n
                Stefanodiscus hantzschii. Summer: Eastern part Ceratium hirundinella,\n
                Melosira granulata, Botryococcus braunii. Summer: western part\n
                Anabaenopsis raciborskii, Anabaena spiroides, A. aphanizomenoides,\n
                Aphanizomenon flos-aquae.</li>\n
              </UL>\n
              \n
              <P><B>F2 FAUNA (5)</B></P>\n
              \n
              <UL>\n
                <LI>Zooplankton <BR>\n
                Polyarthra vulgaris, Keratella quadrata, Pompholyx sulcata. Daphnia\n
                cucullata, D. galeata, Eudiaptomus gracilis, Mesocyclops leucarti,\n
                Cyclops vicinus.</li>\n
                <LI>Benthos <BR>\n
                Ectinosoma abrau, Darwinula stevensoni, Potamothrix hammoniensis,\n
                Tanypus punctipennis, Lithoglyphus naticoides, Dreissena polymorpha.</li>\n
                <LI>Fish <BR>\n
                Abramis brama*, Cyprinus carpio*, Stizostedion lucioperca*, Aspius\n
                aspius, Pelecus cultratus, Esox lucius, Anguilla anguilla*. *\n
                Economically important.</li>\n
              </UL>\n
              \n
              <P><B>F3 PRIMARY PRODUCTION RATE [mg C m-2 day-1](6, 7)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Keszthely, 1973</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    312</TD> \n
                    <TD>\n
                    447</TD> \n
                    <TD>\n
                    524</TD> \n
                    <TD>\n
                    594</TD> \n
                    <TD>\n
                    726</TD> \n
                    <TD>\n
                    858</TD> \n
                    <TD>\n
                    6,640</TD> \n
                    <TD>\n
                    6,628</TD> \n
                    <TD>\n
                    2,265</TD> \n
                    <TD>\n
                    126</TD> \n
                    <TD>\n
                    434</TD> \n
                    <TD>\n
                    373</TD> \n
                    <TD>\n
                    613*</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Szemes, 1976</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    127</TD> \n
                    <TD>\n
                    96</TD> \n
                    <TD>\n
                    447</TD> \n
                    <TD>\n
                    432</TD> \n
                    <TD>\n
                    496</TD> \n
                    <TD>\n
                    988</TD> \n
                    <TD>\n
                    1,551</TD> \n
                    <TD>\n
                    1,132</TD> \n
                    <TD>\n
                    841</TD> \n
                    <TD>\n
                    386</TD> \n
                    <TD>\n
                    214</TD> \n
                    <TD>\n
                    159</TD> \n
                    <TD>\n
                    210*</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Siofok, 1977</TD>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    103</TD> \n
                    <TD>\n
                    105</TD> \n
                    <TD>\n
                    248</TD> \n
                    <TD>\n
                    616</TD> \n
                    <TD>\n
                    633</TD> \n
                    <TD>\n
                    951</TD> \n
                    <TD>\n
                    1,228</TD> \n
                    <TD>\n
                    847</TD> \n
                    <TD>\n
                    638</TD> \n
                    <TD>\n
                    313</TD> \n
                    <TD>\n
                    203</TD> \n
                    <TD>\n
                    41</TD> \n
                    <TD>\n
                    181*</TD> \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    * [g C m-2 yr-1].</TD>\n
                     \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>F4 BIOMASS</B></P>\n
              \n
              <UL>\n
                <LI>Zooplankton: 2.5 [g (dry wt.) m-2].</li>\n
                <LI>Zoobenthos: 2.7 [g (dry wt.) m-2].</li>\n
                <LI>Fish [ton(wet wt.) per lake] <BR>\n
                Abramis brama: 9578. Stizostedion lucioperca: 578.</li>\n
              </UL>\n
              \n
              <P><B>F5 FISHERY PRODUCTS</B></P>\n
              \n
              <UL>\n
                <LI>Annual fish catch [metric tons] <BR>\n
                1985: 1,315.</li>\n
              </UL>\n
              \n
              <P><B>F6 PAST TRENDS: Fig. EUR-04-02, 03, 04, 05 and 06.</B></P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-02.gif" width="346" height="268"></p>\n
                <p>Fig. EUR-04-02<BR>\n
                  Trend of increase of primary production in the Keszthely-basin\n
                  (6).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-03.gif" width="357" height="277"></p>\n
                <p>Fig. EUR-04-03<BR>\n
                  Trend of increase of algae counts in the Keszthely-basin (4).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-04.gif" width="418" height="263"></p>\n
                <p>Fig. EUR-04-04<BR>\n
                  Trend of increase of algae counts in the Siofok-basin (4).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-05.gif" width="416" height="305"></p>\n
                <p>Fig. EUR-04-05<BR>\n
                  Trend of increase of phytoplankton biomass in the Keszthely-basin\n
                  (4).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur04-06.gif" width="392" height="294"></p>\n
                <p>Fig. EUR-04-06<BR>\n
                  Trend of increase of phytoplankton biomass in the Siofok-basin\n
                  (4).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              <BR>\n
              </P>\n
              \n
              <H3>G. SOCIO-ECONOMIC CONDITIONS (8)</H3>\n
              \n
              <P><B>G1 LAND USE IN THE CATCHMENT AREA</B></P>\n
              \n
              <P></P>\n
              \n
              <OL>\n
                <P>1982 <TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Area [km2]</TH> \n
                    <TH>\n
                    [%]</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Natural landscape</TD> \n
                    <TD></TD>\n
                    <TD WIDTH="34%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Woody vegetation</TD> \n
                    <TD>\n
                    1,343</TD> \n
                    <TD>\n
                    25.9</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Herbaceous vegetation</TD> \n
                    <TD>\n
                    362</TD> \n
                    <TD>\n
                    7.0</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Swamp</TD> \n
                    <TD>\n
                    106</TD> \n
                    <TD>\n
                    2.0</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Agricultural land</TD> \n
                    <TD></TD>\n
                    <TD WIDTH="34%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Crop field</TD> \n
                    <TD>\n
                    2,428</TD> \n
                    <TD>\n
                    46.9</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Pasture land</TD> \n
                    <TD>\n
                    505</TD> \n
                    <TD>\n
                    9.7</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Residential area</TD> \n
                    <TD>\n
                    437</TD> \n
                    <TD>\n
                    8.4</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Others</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Total</TD> \n
                    <TD>\n
                    5,181</TD> \n
                    <TD>\n
                    100.0</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Main types of woody vegetation <BR>\n
                Deciduous forest (Carpinus betulus, Quercus petraea, Acer campestris,\n
                Quercus pubescens, Quercus cerris, Fraxinus ornus).</li>\n
                <LI>Main kinds of crops: Wheat, maize, hay, grape and fruits.</li>\n
                <LI>Levels of fertilized application on crop fields <BR>\n
                Heavy (121 kg N + 90 kg P2O5 + 126 kg K2O ha-1 yr-1).</li>\n
              </UL>\n
              \n
              <P><B>G2 INDUSTRIES IN THE CATCHMENT AREA AND THE LAKE</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="4">\n
                    1980</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    No. of persons engaged</TH> \n
                    <TH>\n
                    No. of establishments</TH> \n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Primary industry</TD> \n
                    <TD>\n
                    46,400</TD> \n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Animal husbandry</TD> \n
                    <TD></TD>\n
                    <TD>\n
                    334</TD> \n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Secondary industry</TD> \n
                    <TD>\n
                    65,200</TD> \n
                    <TD>\n
                    741</TD> \n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Tertiary industry</TD> \n
                    <TD>\n
                    78,900</TD> \n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Numbers of domestic animals in the catchment area <BR>\n
                Cattle 90,000, Sheep 110,000, Swine 220,000, Poultry 1,500,000.</li>\n
              </UL>\n
              \n
              <P><B>G3 POPULATION IN THE CATCHMENT AREA</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Population</TH> \n
                    <TH>\n
                    Population density [km-2]</TH> \n
                    <TH>\n
                    Major cities (population)</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Urban</TD> \n
                    <TD>\n
                    180,500</TD> \n
                    <TD></TD>\n
                    <TD>\n
                    Zalaegerszeg, Tapolca,</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Rural</TD> \n
                    <TD>\n
                    224,300</TD> \n
                    <TD></TD>\n
                    <TD>\n
                    Marcali, Keszthely,</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Total</TD> \n
                    <TD>\n
                    404,800</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    Siofok, Balatonfured</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>H. LAKE UTILIZATION</H3>\n
              \n
              <P><B>H1 LAKE UTILIZATION</B></P>\n
              \n
              <P></P>\n
              \n
              <OL>\n
                <P>Source of water, navigation and transportation, sightseeing\n
                and tourism (no.of visitors in 1982: 1,800,000), recreation (swimming,\n
                sport-fishing,yachting) and fisheries.\n
              </OL>\n
              \n
              <P><B>H2 THE LAKE AS WATER RESOURCE</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Use rate [m3 sec-1]</TH> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Domestic</TD> \n
                    <TD>\n
                    0.273</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Irrigation</TD> \n
                    <TD>\n
                    0.079</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Industrial</TD> \n
                    <TD>\n
                    0.330</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Power plant</TD> \n
                    <TD>\n
                    -</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Others</TD> \n
                    <TD>\n
                    -</TD> \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS</H3>\n
              \n
              <P><B>I1 ENHANCED SILTATION</B></P>\n
              \n
              <UL>\n
                <LI>Extent of damage: Not serious.</li>\n
              </UL>\n
              \n
              <P><B>I2 TOXIC CONTAMINATION (9)</B></P>\n
              \n
              <UL>\n
                <LI>Present status: Detected but not serious.</li>\n
                <LI>Main contaminants, their concentrations and sources (lake\n
                average)</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH ROWSPAN="2">\n
                    Name of contaminant</TH> \n
                    <TH COLSPAN="6">\n
                    Range of concentration [ppm] in*1</TH>\n
                     \n
                    <TH ROWSPAN="2">\n
                    Main sources</TH> \n
                  </TR>\n
                  <TR>\n
                     \n
                    <TH>\n
                    Water</TH> \n
                    <TH>\n
                    Bottom mud</TH> \n
                    <TH>\n
                    Fish*2</TH>\n
                    <TH COLSPAN="3">\n
                    Other organisms</TH>\n
                     \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    1982</TD> \n
                    <TD>\n
                    1984</TD> \n
                    <TD>\n
                    1982</TD> \n
                    <TD>\n
                    1982*3</TD> \n
                    <TD>\n
                    1982*4</TD> \n
                    <TD>\n
                    1982*5</TD> \n
                    <TD WIDTH="13%"></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Cu</TD> \n
                    <TD>\n
                    (0.005)</TD> \n
                    <TD>\n
                    (10)</TD> \n
                    <TD>\n
                    (3.12)</TD> \n
                    <TD>\n
                    (12.3)</TD> \n
                    <TD>\n
                    (18.6)</TD> \n
                    <TD>\n
                    (42.5)</TD> \n
                    <TD>\n
                    Waste</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Zn</TD> \n
                    <TD>\n
                    (0.057)</TD> \n
                    <TD>\n
                    (90)</TD> \n
                    <TD>\n
                    (64.3)</TD> \n
                    <TD>\n
                    (468)</TD> \n
                    <TD>\n
                    (73.5)</TD> \n
                    <TD>\n
                    (111)</TD> \n
                    <TD>\n
                    dumps and</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Ca</TD> \n
                    <TD>\n
                    (0.0008)</TD> \n
                    <TD>\n
                    (1.5)</TD> \n
                    <TD>\n
                    (0.65)</TD> \n
                    <TD>\n
                    (3.7)</TD> \n
                    <TD>\n
                    (3.99)</TD> \n
                    <TD>\n
                    (1.47)</TD> \n
                    <TD>\n
                    agriculture</TD> \n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Hg</TD> \n
                    <TD>\n
                    (0.0007)</TD> \n
                    <TD>\n
                    (-)</TD> \n
                    <TD>\n
                    (0.36)</TD> \n
                    <TD>\n
                    (1.22)</TD> \n
                    <TD>\n
                    (1.88)</TD> \n
                    <TD>\n
                    (1.08)</TD> \n
                    <TD></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD ALIGN="CENTER">\n
                    Pb</TD> \n
                    <TD>\n
                    (0.002)</TD> \n
                    <TD>\n
                    (30)</TD> \n
                    <TD>\n
                    (3.59)</TD> \n
                    <TD>\n
                    (48.5)</TD> \n
                    <TD>\n
                    (22.1)</TD> \n
                    <TD>\n
                    (12.3)</TD> \n
                    <TD></TD>\n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *1 For water on volume basis mg l-1; for bottom mud, fish and\n
                    other organisms on dry weight basis mg kg-1.</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *2 Abramis brama, muscle.</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *3 Anodonta oygnea, pill.</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *4 Chironomidae larvae, whole animals.</TD>\n
                     \n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="8">\n
                    *5 Crustacean plankton.</TD>\n
                     \n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>I3 EUTROPHICATION</B></P>\n
              \n
              <UL>\n
                <LI>Nuisance caused by eutrophication <BR>\n
                Unusual algal bloom (Dominant species of algae Aphanizomenon\n
                flos-aquae, Anabaenopsis raciborskii, Anabaena aphanizomenoides,\n
                Anabaena spiroides).</li>\n
                <LI>Nitrogen and phosphorus loadings to the lake [t yr-1] <BR>\n
                whole lake basin,</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="6">\n
                    1975-1981</TD>\n
                     \n
                    <TD WIDTH="15%"></TD>\n
                  </TR>\n
                  <TR>\n
                    <TH>\n
                    Sources</TH> \n
                    <TH>\n
                    Industrial</TH> \n
                    <TH>\n
                    Domestic</TH> \n
                    <TH>\n
                    Agricultural</TH> \n
                    <TH>\n
                    Natural</TH> \n
                    <TH>\n
                    Total</TH> \n
                    <TD WIDTH="15%"></TD>\n
                  </TR>\n
                  <TR>\n
                    <TD>\n
                    T-N</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    382</TD> \n
                    <TD>\n
                    1,973</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    3,148</TD> \n
                    <TD></TD>\n
                  </TR>\n
                  <TR>\n
                    <TD>\n
                    T-P</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    89</TD> \n
                    <TD>\n
                    150</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    314</TD> \n
                    <TD WIDTH="15%"></TD>\n
                  </TR>\n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Supplementary notes <BR>\n
                The following measures are being taken to prevent further eutrophication.</li>\n
                <OL>\n
                  <LI>Development of sewerage and sewage treatment plants.</li>\n
                  <LI>Phosphorus removal at sewage treatment plants.</li>\n
                  <LI>Diversion of a greater part of treated effluents produced\n
                  in recreational areas from the watershed of the lake.</li>\n
                  <LI>Establishment of reservoirs on larger tributaries to retain\n
                  plant nutrients.</li>\n
                  <LI>Elimination of large livestock breeding farms from the watershed\n
                  or the assurance of full agricultural utilization of their wastes\n
                  (mainly liquid manure).</li>\n
                  <LI>Removal of the surface layer of lake sediments in areas of\n
                  high phosphorus accumulation.</li>\n
                  <LI>Land reclamation and soil amelioration.</li>\n
                </OL>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>J. WASTEWATER TREATMENTS (Q)</H3>\n
              \n
              <P><B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B></P>\n
              \n
              <OL>\n
                <P>f) Extensive development of the catchment area with provision\n
                for municipal wastewater treatment.\n
              </OL>\n
              \n
              <P><B>J3 SANITARY FACILITIES AND SEWERAGE</B></P>\n
              \n
              <UL>\n
                <LI>Percentage of municipal population in the catchment area\n
                provided with <BR>\n
                adequate sanitary facilities (on-site treatment systems) or public\n
                sewerage: 100%.</li>\n
                <LI>Percentage of rural population with adequate sanitary facilities\n
                (on-site <BR>\n
                treatment systems): 100%.</li>\n
                <LI>Municipal wastewater treatment systems <BR>\n
                No. of tertiary treatment systems: 6 (64,000 m3 day-1); P removal\n
                by aluminum sulphate. No. of secondary treatment systems: 17\n
                (75,000 m3 day-1).</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>M. LEGISLATIVE AND INSTITUTIONAL MEASURES FOR UPGRADING LAKE\n
              ENVIRONMENTS</H3>\n
              \n
              <P><B>M1 NATIONAL AND LOCAL LAWS CONCERNED</B></P>\n
              \n
              <UL>\n
                <LI>Names of the laws (the year of legislation)</li>\n
                <OL>\n
                  <LI>Hungarian Water Act (1964)</li>\n
                  <LI>Environment Protection Act (1976)</li>\n
                  <LI>Revision of the Water Resources Development Program of the\n
                  Lake Balaton Area (1979)</li>\n
                  <LI>Resolution of the Council of Ministers on Restoration of\n
                  Water Quality of Lake Balaton (1983)</li>\n
                </OL>\n
                <LI>Responsible authorities\n
                <OL>\n
                  <LI>National Water Authority</li>\n
                  <LI>Ministry of Public Health</li>\n
                  <LI>Ministry of Agriculture</li>\n
                  <LI>Ministry of Construction and Town Development</li>\n
                  <LI>National Authority for Environment Protection and Nature\n
                  Conservation</li>\n
                </OL>\n
              </UL>\n
              \n
              <P><B>M2 INSTITUTIONAL MEASURES</B></P>\n
              \n
              <OL>\n
                <LI>National Water Authority</li>\n
              </OL>\n
              \n
              <P><B>M3 RESEARCH INSTITUTES ENGAGED IN THE LAKE ENVIRONMENT STUDIES</B></P>\n
              \n
              <OL>\n
                <LI>Balaton Limnological Research Institute of the Hungarian\n
                Academy of Sciences, Tihany</li>\n
                <LI>Research Centre for Water Resources Development</li>\n
                <LI>National Public Health Institute</li>\n
                <LI>Karl Marx University of Economics</li>\n
                <LI>Scientific and Design Institute for Urban Planning</li>\n
                <LI>Institute for Environmental Protection</li>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Supplementary notes <BR>\n
                Thirty other research institutes, university chairs and other\n
                agencies participated in the research program coordinated by\n
                the above institutions.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
                <LI TYPE="a" VALUE="17">Questionnaire filled by Dr. S. Herodek,\n
                Balaton Limnological Research Institute of the Hungarian Academy\n
                of Sciences, Tihany.</li>\n
                <LI TYPE="1" VALUE="1">Illes I. (ed.)(1981) Our Lake Balaton.\n
                Natura Press, Budapest (in Hungarian).</li>\n
                <LI>National Meteorological Service-Data Bank.</li>\n
                <LI>Research Centre for Water Resources Development-Data Bank.</li>\n
                <LI>Voros, L. (1985) Phytoplankton changes in space and time\n
                in Lake Balaton. D. Sc. Thesis (in Hungarian).</li>\n
                <LI>Ponyi, J. E. (1986) Pelagic and benthic invertebrates of\n
                Lake Balaton and their ecology. D. Sc. Thesis (in Hungarian).</li>\n
                <LI>Herodek, S. &amp; Tamas, G. (1976) The primary production of\n
                phytoplankton in the Keszthely-basin of Lake Balaton in 1973-1974.\n
                Annal. Biol. Tihany, 42: 175-190.</li>\n
                <LI>Herodek, S., Voros, L. &amp; Toth, F. (1982) The mass and production\n
                of phytoplankton and the eutrophication in Lake Balaton III.\n
                The Balatonszemes basin in 1976-1977 and the Siofok basin in\n
                1977. Hidrol. Kozl., 62: 220-229 (in Hungarian with English summary).</li>\n
                <LI>National Authority for Environment Protection and Nature\n
                Conservation (1984) Balaton 1982.</li>\n
                <LI>Salanki, J. V., Balogh, K. &amp; Berta, E. (1982) Heavy metals\n
                in animals of Lake Balaton. Water Research, 16: 1147-1152.</li>\n
              </OL>\n
              \n
              \n
              \n
              """
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              #dates: array:2 [
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                1 => "deleted_at"
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              #fillable: array:47 [
                0 => "lake_code"
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                6 => "zoom"
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                29 => "fish_catch"
                30 => "tn_load"
                31 => "tp_load"
                32 => "population"
                33 => "population_dens"
                34 => "siltation"
                35 => "toxic_cont"
                36 => "eutrophication"
                37 => "acidification"
                38 => "a_name"
                39 => "a_institute"
                40 => "a_address"
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                "id" => 90
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            1 => "lake_metadata_id"
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            4 => "original_file_name"
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            6 => "file_type"
            7 => "file_size"
            8 => "group_name_id"
            9 => "file_title"
            10 => "search_flag"
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            12 => "html"
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          ]
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          #attributes: array:18 [
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            "html" => """
              \n
              \n
              \n
              \n
              \n
              <H2>ZURICHSEE</H2>\n
              \n
              <P><B>A lakeside view</B><BR>\n
              <BR>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-00.jpg" ALT="Photo." WIDTH="380" HEIGHT="256"\n
              NATURALSIZEFLAG="0" ALIGN="BOTTOM"><BR>\n
              Photo: Shiga Prefecutual Government</P>\n
              \n
              <P><BR>\n
              <BR>\n
              <BR>\n
              </P>\n
              \n
              <H3>A. LOCATION</H3>\n
              \n
              <UL>\n
                <LI>Zurich and Schwyz, Switzerland.</li>\n
                <LI>47:15N, 8:40E; 406 m above sea level.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>B. DESCRIPTION</H3>\n
              \n
              <OL>\n
                <P>The Lake Zurich consists of two parts, a longer\n
                one with a length of about 28 km and a smaller one with a length\n
                of about 12 km. The lake lies in a valley formed by a glacier\n
                in the last ice period. With the state capital, the city of Zurich\n
                at the end of the lake, hilly shore areas offer favorable sites\n
                to live. Owing to the sewage discharge from this area, the lake\n
                became eutrophic at the beginning of this century. With the construction\n
                of sewage treatment plants, which include mechanical, biological\n
                and chemical steps in the form of phosphorus flocculation and\n
                flocculation filtration for all the wastewater in the catchment\n
                area, the loading of organic material and phosphorus compounds\n
                has been reduced, and the trophic state has tended toward mesotrophic.\n
                For one hundred years Lake Zurich water has been used as an important\n
                drinking water resource for Zurich and for various villages in\n
                its surroundings. The lake has a great importance also as a large\n
                recreation area. <BR>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>C. PHYSICAL DIMENSIONS (Q1).</H3>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Surface area [km2]</TD> \n
                    <TD>\n
                    65</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Volume [km3]</TD> \n
                    <TD>\n
                    3.3</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Maximum depth [m]</TD> \n
                    <TD>\n
                    136.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Mean depth [m]</TD> \n
                    <TD>\n
                    51.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Water level</TD> \n
                    <TD>\n
                    Regulated</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Residence time [yr]</TD> \n
                    <TD>\n
                    1.1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Catchment area [km2]</TD> \n
                    <TD>\n
                    1,740</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <P><B>D1 GEOGRAPHICAL (Q1)</B></P>\n
              \n
              <UL>\n
                <LI>Bathymetric map: Fig. EUR-06-01.</li>\n
                <LI>Names of main islands: None.</li>\n
                <LI>Number of outflowing rivers and channels (name): 1 (Limmat\n
                R.).</li>\n
              </UL>\n
              \n
              <P><B>D2 CLIMATIC</B></P>\n
              \n
              <UL>\n
                <LI>Climatic data at Zurich, 1931-1960 (1)</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Mean temp. [deg C]</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    -0.1</TD> \n
                    <TD>\n
                    0.3</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    8.6</TD> \n
                    <TD>\n
                    12.7</TD> \n
                    <TD>\n
                    15.9</TD> \n
                    <TD>\n
                    17.6</TD> \n
                    <TD>\n
                    17.0</TD> \n
                    <TD>\n
                    14.0</TD> \n
                    <TD>\n
                    8.6</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    0.1</TD> \n
                    <TD>\n
                    8.5</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Precipitation [mm]</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    74</TD> \n
                    <TD>\n
                    70</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    107</TD> \n
                    <TD>\n
                    136</TD> \n
                    <TD>\n
                    143</TD> \n
                    <TD>\n
                    131</TD> \n
                    <TD>\n
                    108</TD> \n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    76</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    1,136</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Number of hours of bright sunshine: 1,963 hr yr-1 (1).</li>\n
              </UL>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-01.gif" width="314" height="316"></p>\n
                <p>Fig. EUR-06-01<BR>\n
                  Bathymetric map (Q1).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <UL>\n
                <LI>Water temperature: Fig. EUR-06-02.</li>\n
              </UL>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-02.gif" width="322" height="226"></p>\n
                <p>Fig. EUR-06-02<BR>\n
                  Depth/season isotherms [deg C] at Station 1, 1983 (1).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-03.gif" width="373" height="294"></p>\n
                <p>Fig. EUR-06-03<BR>\n
                  Seasonal variation of vertical water temperature [deg C] distribution,\n
                  1972-1974 (2).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <UL>\n
                <LI>Freezing period: Seldom (1).</li>\n
                <LI>Mixing type: Meromictic (1).</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <P><B>E1 TRANSPARENCY [m](Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1983</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    5.9</TD> \n
                    <TD>\n
                    8.0</TD> \n
                    <TD>\n
                    8.0</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    5.9</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    2.4</TD> \n
                    <TD>\n
                    3.3</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    5.5</TD> \n
                    <TD>\n
                    5.5</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E2 pH (Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1983</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    S*</TD> \n
                    <TD>\n
                    8.02</TD> \n
                    <TD>\n
                    7.75</TD> \n
                    <TD>\n
                    8.02</TD> \n
                    <TD>\n
                    8.12</TD> \n
                    <TD>\n
                    8.60</TD> \n
                    <TD>\n
                    8.69</TD> \n
                    <TD>\n
                    8.61</TD> \n
                    <TD>\n
                    8.57</TD> \n
                    <TD>\n
                    8.19</TD> \n
                    <TD>\n
                    8.72</TD> \n
                    <TD>\n
                    8.72</TD> \n
                    <TD>\n
                    7.91</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    * Surface.</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E4 DO: Fig. EUR-06-04.</B></P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-04.gif" width="316" height="289"></p>\n
                <p>Fig. EUR-06-04<BR>\n
                  Vertical and seasonal distribution of DO [mg l-1](Q1).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              <B>E5 COD [mg l-1](Q3)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="14">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.50</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.50</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.50</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.10</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.40</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.10</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    1.10</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    1.40</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E6 CHLOROPHYLL CONCENTRATION [micro g l-1](Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1983</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    0.54</TD> \n
                    <TD>\n
                    1.04</TD> \n
                    <TD>\n
                    1.70</TD> \n
                    <TD>\n
                    3.74</TD> \n
                    <TD>\n
                    11.54</TD> \n
                    <TD>\n
                    1.78</TD> \n
                    <TD>\n
                    1.82</TD> \n
                    <TD>\n
                    3.83</TD> \n
                    <TD>\n
                    2.17</TD> \n
                    <TD>\n
                    3.68</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    0.40</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    0.39</TD> \n
                    <TD>\n
                    1.12</TD> \n
                    <TD>\n
                    1.61</TD> \n
                    <TD>\n
                    2.22</TD> \n
                    <TD>\n
                    5.72</TD> \n
                    <TD>\n
                    1.62</TD> \n
                    <TD>\n
                    2.59</TD> \n
                    <TD>\n
                    2.89</TD> \n
                    <TD>\n
                    2.02</TD> \n
                    <TD>\n
                    1.89</TD> \n
                    <TD>\n
                    1.26</TD> \n
                    <TD>\n
                    0.42</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    0.32</TD> \n
                    <TD>\n
                    1.12</TD> \n
                    <TD>\n
                    0.58</TD> \n
                    <TD>\n
                    0.58</TD> \n
                    <TD>\n
                    1.16</TD> \n
                    <TD>\n
                    0.31</TD> \n
                    <TD>\n
                    0.35</TD> \n
                    <TD>\n
                    0.38</TD> \n
                    <TD>\n
                    0.42</TD> \n
                    <TD>\n
                    0.62</TD> \n
                    <TD>\n
                    0.36</TD> \n
                    <TD>\n
                    0.36</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    0.36</TD> \n
                    <TD>\n
                    1.06</TD> \n
                    <TD>\n
                    0.35</TD> \n
                    <TD>\n
                    0.40</TD> \n
                    <TD>\n
                    0.71</TD> \n
                    <TD>\n
                    0.22</TD> \n
                    <TD>\n
                    0.12</TD> \n
                    <TD>\n
                    0.16</TD> \n
                    <TD>\n
                    0.27</TD> \n
                    <TD>\n
                    0.16</TD> \n
                    <TD>\n
                    0.13</TD> \n
                    <TD>\n
                    0.38</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    0.28</TD> \n
                    <TD>\n
                    1.04</TD> \n
                    <TD>\n
                    0.47</TD> \n
                    <TD>\n
                    0.35</TD> \n
                    <TD>\n
                    0.56</TD> \n
                    <TD>\n
                    0.15</TD> \n
                    <TD>\n
                    0.11</TD> \n
                    <TD>\n
                    0.11</TD> \n
                    <TD>\n
                    0.29</TD> \n
                    <TD>\n
                    0.14</TD> \n
                    <TD>\n
                    0.10</TD> \n
                    <TD>\n
                    0.07</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    0.04</TD> \n
                    <TD>\n
                    0.32</TD> \n
                    <TD>\n
                    0.53</TD> \n
                    <TD>\n
                    0.29</TD> \n
                    <TD>\n
                    0.22</TD> \n
                    <TD>\n
                    0.11</TD> \n
                    <TD>\n
                    0.08</TD> \n
                    <TD>\n
                    0.10</TD> \n
                    <TD>\n
                    0.17</TD> \n
                    <TD>\n
                    0.06</TD> \n
                    <TD>\n
                    0.05</TD> \n
                    <TD>\n
                    0.04</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    0.02</TD> \n
                    <TD>\n
                    0.13</TD> \n
                    <TD>\n
                    0.15</TD> \n
                    <TD>\n
                    0.19</TD> \n
                    <TD>\n
                    0.16</TD> \n
                    <TD>\n
                    0.10</TD> \n
                    <TD>\n
                    0.04</TD> \n
                    <TD>\n
                    0.06</TD> \n
                    <TD>\n
                    0.10</TD> \n
                    <TD>\n
                    0.25</TD> \n
                    <TD>\n
                    0.05</TD> \n
                    <TD>\n
                    0.05</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    0.02</TD> \n
                    <TD>\n
                    0.07</TD> \n
                    <TD>\n
                    0.08</TD> \n
                    <TD>\n
                    0.21</TD> \n
                    <TD>\n
                    1.52</TD> \n
                    <TD>\n
                    0.11</TD> \n
                    <TD>\n
                    0.06</TD> \n
                    <TD>\n
                    0.08</TD> \n
                    <TD>\n
                    0.16</TD> \n
                    <TD>\n
                    0.25</TD> \n
                    <TD>\n
                    0.02</TD> \n
                    <TD>\n
                    0.03</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E7 NITROGEN CONCENTRATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>NH4-N [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .070</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .020</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .070</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .070</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .020</TD> \n
                    <TD>\n
                    .075</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .045</TD> \n
                    <TD>\n
                    .075</TD> \n
                    <TD>\n
                    .040</TD> \n
                    <TD>\n
                    .030</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .020</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    .030</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    .030</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    .030</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    .040</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .200</TD> \n
                    <TD>\n
                    .180</TD> \n
                    <TD>\n
                    .200</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    .300</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .090</TD> \n
                    <TD>\n
                    .135</TD> \n
                    <TD>\n
                    .300</TD> \n
                    <TD>\n
                    .320</TD> \n
                    <TD>\n
                    .370</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>NO3-N [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    .690</TD> \n
                    <TD>\n
                    .735</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .615</TD> \n
                    <TD>\n
                    .655</TD> \n
                    <TD>\n
                    .530</TD> \n
                    <TD>\n
                    .375</TD> \n
                    <TD>\n
                    .385</TD> \n
                    <TD>\n
                    .370</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    .705</TD> \n
                    <TD>\n
                    .745</TD> \n
                    <TD>\n
                    .750</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .625</TD> \n
                    <TD>\n
                    .660</TD> \n
                    <TD>\n
                    .530</TD> \n
                    <TD>\n
                    .385</TD> \n
                    <TD>\n
                    .365</TD> \n
                    <TD>\n
                    .365</TD> \n
                    <TD>\n
                    .520</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    .685</TD> \n
                    <TD>\n
                    .740</TD> \n
                    <TD>\n
                    .750</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .615</TD> \n
                    <TD>\n
                    .650</TD> \n
                    <TD>\n
                    .530</TD> \n
                    <TD>\n
                    .375</TD> \n
                    <TD>\n
                    .365</TD> \n
                    <TD>\n
                    .365</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    .690</TD> \n
                    <TD>\n
                    .735</TD> \n
                    <TD>\n
                    .750</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .615</TD> \n
                    <TD>\n
                    .665</TD> \n
                    <TD>\n
                    .540</TD> \n
                    <TD>\n
                    .420</TD> \n
                    <TD>\n
                    .370</TD> \n
                    <TD>\n
                    .370</TD> \n
                    <TD>\n
                    .520</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    .680</TD> \n
                    <TD>\n
                    .710</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .695</TD> \n
                    <TD>\n
                    .690</TD> \n
                    <TD>\n
                    .660</TD> \n
                    <TD>\n
                    .490</TD> \n
                    <TD>\n
                    .380</TD> \n
                    <TD>\n
                    .380</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .550</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    .695</TD> \n
                    <TD>\n
                    .735</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .740</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .765</TD> \n
                    <TD>\n
                    .640</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    .695</TD> \n
                    <TD>\n
                    .730</TD> \n
                    <TD>\n
                    .765</TD> \n
                    <TD>\n
                    .795</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .550</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    .705</TD> \n
                    <TD>\n
                    .715</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .870</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .545</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    .695</TD> \n
                    <TD>\n
                    .730</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .905</TD> \n
                    <TD>\n
                    .875</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .800</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    .700</TD> \n
                    <TD>\n
                    .735</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .840</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .830</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    .715</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .750</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .835</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .825</TD> \n
                    <TD>\n
                    .810</TD> \n
                    <TD>\n
                    .840</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .745</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .835</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .820</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .830</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .840</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .820</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .825</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    .840</TD> \n
                    <TD>\n
                    .745</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .765</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .825</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .830</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .810</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .825</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .830</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .835</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .880</TD> \n
                    <TD>\n
                    .650</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .855</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .795</TD> \n
                    <TD>\n
                    .870</TD> \n
                    <TD>\n
                    .925</TD> \n
                    <TD>\n
                    .830</TD> \n
                    <TD>\n
                    .580</TD> \n
                    <TD>\n
                    .670</TD> \n
                    <TD>\n
                    .635</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    .575</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .895</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .595</TD> \n
                    <TD>\n
                    .480</TD> \n
                    <TD>\n
                    .535</TD> \n
                    <TD>\n
                    .500</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E8 PHOSPHORUS CONCENTRATION</B></P>\n
              \n
              <UL>\n
                <LI>PO4-P [micro g l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986 (03)</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    42</TD> \n
                    <TD>\n
                    35</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    26</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    11</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    9</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    11</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    28</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    39</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    28</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    43</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    13</TD> \n
                    <TD>\n
                    12</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    29</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    23</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    28</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    12</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    26</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    34</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    9</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    25</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    42</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    33</TD> \n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    37</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    28</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    43</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    47</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    63</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    56</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    69</TD> \n
                    <TD>\n
                    61</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    57</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    59</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    63</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    73</TD> \n
                    <TD>\n
                    63</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    59</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    63</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    68</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    81</TD> \n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    77</TD> \n
                    <TD>\n
                    57</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    73</TD> \n
                    <TD>\n
                    67</TD> \n
                    <TD>\n
                    72</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    92</TD> \n
                    <TD>\n
                    92</TD> \n
                    <TD>\n
                    87</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    70</TD> \n
                    <TD>\n
                    72</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    91</TD> \n
                    <TD>\n
                    86</TD> \n
                    <TD>\n
                    74</TD> \n
                    <TD>\n
                    88</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    126</TD> \n
                    <TD>\n
                    118</TD> \n
                    <TD>\n
                    101</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    73</TD> \n
                    <TD>\n
                    89</TD> \n
                    <TD>\n
                    96</TD> \n
                    <TD>\n
                    115</TD> \n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    114</TD> \n
                    <TD>\n
                    125</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    180</TD> \n
                    <TD>\n
                    136</TD> \n
                    <TD>\n
                    119</TD> \n
                    <TD>\n
                    89</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    91</TD> \n
                    <TD>\n
                    123</TD> \n
                    <TD>\n
                    160</TD> \n
                    <TD>\n
                    209</TD> \n
                    <TD>\n
                    237</TD> \n
                    <TD>\n
                    193</TD> \n
                    <TD>\n
                    211</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    259</TD> \n
                    <TD>\n
                    142</TD> \n
                    <TD>\n
                    133</TD> \n
                    <TD>\n
                    96</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    126</TD> \n
                    <TD>\n
                    160</TD> \n
                    <TD>\n
                    223</TD> \n
                    <TD>\n
                    301</TD> \n
                    <TD>\n
                    267</TD> \n
                    <TD>\n
                    252</TD> \n
                    <TD>\n
                    268</TD>\n
                  </TR> \n
                </TABLE>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-05.gif" width="367" height="321"></p>\n
                <p>Fig. EUR-06-05<BR>\n
                  Vertical and seasonal distribution of PO4-P [micro g l-1] at\n
                  Station 1, 1983 (Q1).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <UL>\n
                <LI>Total-P [micro g l-1](Q3)</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    31</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    41</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    18</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    31</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    43</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    12</TD> \n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    2</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    12</TD> \n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    6</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    19</TD> \n
                    <TD>\n
                    9</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    31</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    18</TD> \n
                    <TD>\n
                    14</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    31</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    22</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    6</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    43</TD> \n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    &lt;1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    42</TD> \n
                    <TD>\n
                    9</TD> \n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    24</TD> \n
                    <TD>\n
                    25</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    59</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    34</TD> \n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    37</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    47</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    57</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    61</TD> \n
                    <TD>\n
                    61</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    67</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    74</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    76</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    61</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    62</TD> \n
                    <TD>\n
                    68</TD> \n
                    <TD>\n
                    68</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    70</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    83</TD> \n
                    <TD>\n
                    92</TD> \n
                    <TD>\n
                    82</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    73</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    76</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    74</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    94</TD> \n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    74</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    75</TD> \n
                    <TD>\n
                    77</TD> \n
                    <TD>\n
                    78</TD> \n
                    <TD>\n
                    92</TD> \n
                    <TD>\n
                    91</TD> \n
                    <TD>\n
                    82</TD> \n
                    <TD>\n
                    89</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    119</TD> \n
                    <TD>\n
                    101</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    94</TD> \n
                    <TD>\n
                    95</TD> \n
                    <TD>\n
                    118</TD> \n
                    <TD>\n
                    140</TD> \n
                    <TD>\n
                    117</TD> \n
                    <TD>\n
                    142</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    191</TD> \n
                    <TD>\n
                    136</TD> \n
                    <TD>\n
                    121</TD> \n
                    <TD>\n
                    89</TD> \n
                    <TD>\n
                    76</TD> \n
                    <TD>\n
                    103</TD> \n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    160</TD> \n
                    <TD>\n
                    209</TD> \n
                    <TD>\n
                    254</TD> \n
                    <TD>\n
                    197</TD> \n
                    <TD>\n
                    218</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    263</TD> \n
                    <TD>\n
                    142</TD> \n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    96</TD> \n
                    <TD>\n
                    78</TD> \n
                    <TD>\n
                    128</TD> \n
                    <TD>\n
                    165</TD> \n
                    <TD>\n
                    223</TD> \n
                    <TD>\n
                    305</TD> \n
                    <TD>\n
                    291</TD> \n
                    <TD>\n
                    260</TD> \n
                    <TD>\n
                    282</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E9 CHLORIDE CONCENTRATION [mg l-1](Q3)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.7</TD> \n
                    <TD>\n
                    3.1</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.7</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.6</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.6</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.8</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.4</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.1</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    5.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E10 PAST TRENDS: Fig. EUR-06-06, 07, 08, 09 and 10.</B></P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-06.gif" width="374" height="186"></p>\n
                <p>Fig. EUR-06-06<BR>\n
                  Trend of transparency (means for January-March, 1897-1900 & 1936-1980)(3).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-07.gif" width="420" height="245"></p>\n
                <p>Fig. EUR-06-07<BR>\n
                  Trends of net hypolimnetic oxygen consumption during the stagnation\n
                  period, and annual hypolimnetic oxygen minimum. Net hypolimnetic\n
                  oxygen consumption is equivalent to annual maximum (spring) minus\n
                  annual minimum (autumn)(3).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-08.gif" width="391" height="164"></p>\n
                <p>Fig. EUR-06-08<BR>\n
                  Trends of NO3-N and PO4-P in summer stagnation periods (2).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-09.gif" width="339" height="286"></p>\n
                <p>Fig. EUR-06-09<BR>\n
                  Past trend of annual averages of PO4-P (0-136 m)(Q3).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-10.gif" width="380" height="280"></p>\n
                <p>Fig. EUR-06-10<BR>\n
                  Past trends of total phosphorus in the eplilimnion and O2 in\n
                  the hypolimnion between April and September (Q3).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              <BR>\n
              </P>\n
              \n
              <H3>F. BIOLOGICAL FEATURES (Q1)</H3>\n
              \n
              <P><B>F1</B> FLORA</P>\n
              \n
              <UL>\n
                <LI>Emerged macrophytes <BR>\n
                Phragmites communis, Phalaris arundinacea, Schoenoplectus lacustris.</li>\n
                <LI>Floating macrophytes <BR>\n
                Nymphaea alba, Nuphar luteum (several places but mostly planted\n
                by inhabitants).</li>\n
                <LI>Submerged macrophytes <BR>\n
                Potamogeton pectinatus, P. perfoliatus, P. lucens, P. crispus,\n
                Elodea canadensis, Zannichellia palustris.</li>\n
                <LI>Phytoplankton <BR>\n
                Anabaena flos-aquae, A. planctonica, Oscillatoria rubescens,\n
                Aphanizomenon flos-aquae, Pandorina morum, Sphaerocystis schroeteri,\n
                Mougeotia sp., Dinobryon divergens, Ceratium hirundinella, Cryptomonas\n
                ovata, Rhodomonas sp., Melosira granulata, Cyclotella comta,\n
                Stephanodiscus hantzschii, Tabellaria fenestrata, Fragilaria\n
                crotonensis, Asterionella formosa, Synedra acus.</li>\n
              </UL>\n
              \n
              <P><B>F2 FAUNA</B></P>\n
              \n
              <UL>\n
                <LI>Zooplankton <BR>\n
                Nassula aurea, Tintinnopsis lacustris, Epistylis rotans, Polyarthra\n
                platyptera, Keratella cochlearis, Keratella quadrata, Notholca\n
                longispina, Asplanchna priodonta, Synchaeta pectinata, Leptodora\n
                sp., Daphnia longispina, Bosmina longirostris, Diaptomous gracilis,\n
                Cyclops strenuus, Chaoborus crystallinus.</li>\n
                <LI>Benthos <BR>\n
                Dugesia polychroa, Herpobdella octoculata, Helobdella stagnalis,\n
                Limnodrilus hoffmeisteri, Tubifex ignotus, Psammocryctes barbatus,\n
                Stylaria lacustris, Planaria sp., Bithynia tentaculata, Gyraulus\n
                albus, Lymnaea auricularia, L. peregra, Pisidium subruncatum,\n
                P. moitessierianum, P. nitidum, Dreissena polymorpha, Eucyclops\n
                serratulus, Paracyclops fimbriatus, Canthocamptus staphilinus,\n
                Caenis moesta, Polypedilum nubeculosum, Microtendipes sp., Limnochironomus\n
                pulsus, Eukjefferiella sp., Polycentropus flavomaculatus, Tinodes\n
                sp.</li>\n
                <LI>Fish <BR>\n
                Anguilla vulgaris, Esox lucius, Salmo salvelinus, S. variabilis,\n
                Coregonus wartmanni, C. schinzi, Leucisus rutilus, Abramis brama,\n
                Barbus fluviatilis, Tinca vulgaris, Cyprinus carpio, Lota vulgaris,\n
                Perca fluviatilis.</li>\n
              </UL>\n
              \n
              <P><B>F3 PRIMARY PRODUCTION RATE</B></P>\n
              \n
              <UL>\n
                <LI>Net primary production rate [mg C m-2 day-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1981</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    67</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    710</TD> \n
                    <TD>\n
                    2,050</TD> \n
                    <TD>\n
                    370</TD> \n
                    <TD>\n
                    1,180</TD> \n
                    <TD>\n
                    1,470</TD> \n
                    <TD>\n
                    910</TD> \n
                    <TD>\n
                    1,130</TD> \n
                    <TD>\n
                    940</TD> \n
                    <TD>\n
                    603</TD> \n
                    <TD>\n
                    560</TD> \n
                    <TD>\n
                    833</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1982</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    390</TD> \n
                    <TD>\n
                    420</TD> \n
                    <TD>\n
                    210</TD> \n
                    <TD>\n
                    760</TD> \n
                    <TD>\n
                    460</TD> \n
                    <TD>\n
                    1,450</TD> \n
                    <TD>\n
                    2,430</TD> \n
                    <TD>\n
                    1,070</TD> \n
                    <TD>\n
                    1,070</TD> \n
                    <TD>\n
                    380</TD> \n
                    <TD>\n
                    610</TD> \n
                    <TD>\n
                    140</TD> \n
                    <TD>\n
                    783</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>F5 FISHERY PRODUCTS</B></P>\n
              \n
              <UL>\n
                <LI>Annual fish catch [metric tons]: 189.4.</li>\n
              </UL>\n
              \n
              <P><B>F6 PAST TRENDS (Q1)</B></P>\n
              \n
              <UL>\n
                <LI>Trends of net primary production rate and phytoplankton biomass</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="10">\n
                    0-14 m</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    1974</TH> \n
                    <TH>\n
                    1975</TH> \n
                    <TH>\n
                    1976</TH> \n
                    <TH>\n
                    1977</TH> \n
                    <TH>\n
                    1978</TH> \n
                    <TH>\n
                    1979</TH> \n
                    <TH>\n
                    1980</TH> \n
                    <TH>\n
                    1981</TH> \n
                    <TH>\n
                    1982</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Primary production rate</TD> \n
                    <TD>\n
                    350</TD> \n
                    <TD>\n
                    230</TD> \n
                    <TD>\n
                    390</TD> \n
                    <TD>\n
                    230</TD> \n
                    <TD>\n
                    250</TD> \n
                    <TD>\n
                    280</TD> \n
                    <TD>\n
                    180</TD> \n
                    <TD>\n
                    305</TD> \n
                    <TD>\n
                    290</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="10">\n
                    [g C m-2 yr-1]</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Phytoplankton biomass</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    2.56</TD> \n
                    <TD>\n
                    2.23</TD> \n
                    <TD>\n
                    2.05</TD> \n
                    <TD>\n
                    3.34</TD> \n
                    <TD>\n
                    2.48</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    2.87</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="10">\n
                    [mg l-1]</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>G. SOCIO-ECONOMIC CONDITIONS</H3>\n
              \n
              <P><B>G1 LAND USE IN THE CATCHMENT AREA (Q2)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="3">\n
                    1980</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Area [km2]</TH> \n
                    <TH>\n
                    [%]</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Natural landscape</TD>\n
                    <TD WIDTH="33%"></TD>\n
                    <TD WIDTH="34%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Woody vegetation</TD> \n
                    <TD>\n
                    40.2</TD> \n
                    <TD>\n
                    23</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Others</TD> \n
                    <TD>\n
                    243.6</TD> \n
                    <TD>\n
                    14</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Agricultural land</TD> \n
                    <TD>\n
                    922.3</TD> \n
                    <TD>\n
                    53</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Residential area</TD> \n
                    <TD>\n
                    88.0</TD> \n
                    <TD>\n
                    5</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Others</TD> \n
                    <TD>\n
                    104.4</TD> \n
                    <TD>\n
                    6</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Total</TD> \n
                    <TD>\n
                    1,758.5</TD> \n
                    <TD>\n
                    100</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Main types of woody vegetation (Q1) <BR>\n
                Picea abies, Abies alba, Fagus silvatica, Quercus robur, Pinus\n
                silvestris, Larix decidua.</li>\n
                <LI>Main types of herbaceous vegetation (Q1) <BR>\n
                Fertilized meadow land (Agrostis, Bromus, Poa, Festuca, Lolium,\n
                Avena).</li>\n
                <LI>Levels of fertilizer application on crop fields: Moderate.</li>\n
              </UL>\n
              \n
              <P><B>G2 INDUSTRIES IN THE CATCHMENT AREA AND THE LAKE (Q1)</B></P>\n
              \n
              <UL>\n
                <LI>Main products of agriculture: Wheat, grape, vegetables and\n
                dairy products.</li>\n
                <LI>Main kinds of manufacturing products: Textile, machinery\n
                and metal.</li>\n
              </UL>\n
              \n
              <P><B>G3 POPULATION IN THE CATCHMENT AREA (Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="4">\n
                    1984</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Population</TH> \n
                    <TH>\n
                    Population density [km-2]</TH> \n
                    <TH>\n
                    Major cities (population)</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Total</TD> \n
                    <TD>\n
                    ca. 500,000</TD> \n
                    <TD>\n
                    ca. 217</TD> \n
                    <TD>\n
                    Zurich* (423,000), Stafa, Thalwil, Horgen, Wadenswil, Kusnacht,\n
                    Meilen.</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="4">\n
                    * Not all the city area is included in the catchment area.</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>H. LAKE UTILIZATION</H3>\n
              \n
              <P><B>H1 LAKE UTILIZATION (Q1, Q2)</B></P>\n
              \n
              <P></P>\n
              \n
              <UL>\n
                <LI>Source of water, fisheries, navigation, tourism and recreation\n
                (swimming, sport-fishing, yachting).</li>\n
              </UL>\n
              \n
              <P><B>H2 THE LAKE AS WATER RESOURCE (Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="2">\n
                    1983</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Use rate [m3 sec-1]</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Domestic*</TD> \n
                    <TD>\n
                    2.2</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Industrial</TD> \n
                    <TD>\n
                    0.07</TD>\n
                  </TR> \n
                </TABLE>* The lake serves as a source of drinking water for 700,000\n
                people comprising the city of Zurich, its suburbs and lakeshore\n
                communities.\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS</H3>\n
              \n
              <P><B>I1 ENHANCED SILTATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>Extent of damage: Not serious.</li>\n
              </UL>\n
              \n
              <P><B>I2 TOXIC CONTAMINATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>Present status: Detected but not serious.</li>\n
                <LI>Main contaminants, their concentrations and sources <BR>\n
                Station 1, 1986</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH>\n
                    Name of contaminants</TH> \n
                    <TH>\n
                    Concentrations [ppb] Water</TH> \n
                    <TH>\n
                    Main sources</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1, 1, 1-Trichloroethane</TD> \n
                    <TD>\n
                    0.01</TD> \n
                    <TD>\n
                    Industrial</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Trichloroethylene</TD> \n
                    <TD>\n
                    0.01</TD> \n
                    <TD>\n
                    Industrial</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Tetrachloroethylene</TD> \n
                    <TD>\n
                    0.02</TD> \n
                    <TD>\n
                    Industrial</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Afrazin</TD> \n
                    <TD>\n
                    0.06</TD> \n
                    <TD>\n
                    Different pollution sources</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>I3 EUTROPHICATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>Nuisance caused by eutrophication <BR>\n
                Unusual algal bloom (Aphanizomenon flos-aquae and Stephanodiscus\n
                hantzschii).</li>\n
                <LI>Nitrogen and phosphorus loadings to the lake [ton yr-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="7">\n
                    1984</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Sources</TH> \n
                    <TH>\n
                    Rivers</TH> \n
                    <TH>\n
                    Treated sewage</TH> \n
                    <TH>\n
                    Stormwater tank</TH> \n
                    <TH>\n
                    Untreated sewage</TH> \n
                    <TH>\n
                    Precipitate</TH> \n
                    <TH>\n
                    Total</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    T-P</TD> \n
                    <TD>\n
                    78</TD> \n
                    <TD>\n
                    38</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    128</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>I4 ACIDIFICATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>Extent of damage: None.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>J. WASTEWATER TREATMENTS (Q1, Q3)</H3>\n
              \n
              <P><B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B></P>\n
              \n
              <OL>\n
                <P>f) Extensive coverage of pollution sources by treatment systems.\n
              </OL>\n
              \n
              <P><B>J3 SANITARY FACILITIES AND SEWERAGE</B></P>\n
              \n
              <UL>\n
                <LI>Percentage of municipal population in the catchment area\n
                provided with <BR>\n
                adequate sanitary facilities (on-site treatment systems) or public\n
                sewerage: 90%.</li>\n
                <LI>Municipal wastewater treatment systems (rate of treatment:\n
                130,000 m3 day-1) <BR>\n
                No. of quarternary treatment systems: 2. No. of tertiary treatment\n
                systems: 15 (activated sludge, with chemical precipitation of\n
                phosphorus).</li>\n
                <LI>Supplementary notes <BR>\n
                About 90% of sewage is treated in existing wastewater treatment\n
                systems. All of the 17 treatment plants will have a flocculation\n
                filtration process at the end.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>M. LEGISLATIVE AND INSTITUTIONAL MEASURES FOR UPGRADING LAKE\n
              ENVIRONMENTS</H3>\n
              \n
              <P><B>M1 NATIONAL AND LOCAL LAWS CONCERNED (Q1, Q2)</B></P>\n
              \n
              <UL>\n
                <LI>Names of the laws (the year of legislation)</li>\n
                <OL>\n
                  <LI>Law of Water Rights, Canton of Zurich (1901)(similar for\n
                  Canton of Schwyz)</li>\n
                  <LI>Federal Law on Water Pollution Control, Federal Government\n
                  (1971)</li>\n
                  <LI>Law on the Introduction of the Federal Law of Water Pollution\n
                  Control, Canton of Zurich (1974)(similar for Canton of Schwyz)</li>\n
                  <LI>Ordinance on Waste Water Disposal, Federal Government (1975)</li>\n
                  <LI>Law on Fisheries, Canton of Zurich (1976)</li>\n
                </OL>\n
                <LI>Responsible authorities <BR>\n
                Governments of Cts. of Zurich and Schwyz (Directorates of Hydraulic\n
                Constructions, Water Pollution Control, Fisheries, and Sanitation).</li>\n
                <LI>Main items of control <BR>\n
                Supervision of planning, maintenance and efficiency of water\n
                and waste treatment plants, and analysis of public waters (Cantonal\n
                Laboratories Zurich and Schwyz; City Water Supply Zurich).</li>\n
              </UL>\n
              \n
              <P><B>M2 INSTITUTIONAL MEASURES</B></P>\n
              \n
              <OL>\n
                <LI>Water Supply Zurich, Quality Control</li>\n
              </OL>\n
              \n
              <P><B>M3 RESEARCH INSTITUTES ENGAGED IN THE LAKE ENVIRONMENT STUDIES</B></P>\n
              \n
              <OL>\n
                <LI>Eidgenossische Anstalt fur Wasserversorgung, Abwasserreinigung\n
                und Gewasserschutz (EAWAG, part of the Swiss Federal Institute\n
                of Technology), Dubendorf</li>\n
                <LI>Limnological Station at Kilchberg, University of Zurich</li>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
                <LI TYPE="a" VALUE="17">Questionnaire filled by Prof. K. Wuhrman,\n
                Institut fur Gewasserschutz und Wassertechnologie, Dubendorf.</li>\n
                <LI TYPE="a" VALUE="17">Questionnaire filled by Dr. P. Liechti,\n
                Bundesamt fur Umweltschutz, Zurich.</li>\n
                <LI TYPE="a" VALUE="17">Questionnaire filled by Dr. U. Zimmermann,\n
                Wasserversorgung Zurich, Zurich.</li>\n
                <LI TYPE="1" VALUE="1">Muller, M. J. (1982) Selected Climatic\n
                Data for a Global Set of Standard Stations for Vegetation Science.\n
                306 pp. Dr. W. Junk Publishers, The Hague.</li>\n
                <LI>Zimmermann, U. (1975) Gas-Wasser-Abwasser, 55(9): 473-480.</li>\n
                <LI>Schanz, F. & Thomas, E. A. (1981) Reversal of eutrophication\n
                in Lake Zurich. Water Quality Bulletin, 6(4): 108-112 & 156.</li>\n
              </OL>\n
              \n
              \n
              \n
              """
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            "created_at" => "2020-04-23 09:03:37"
            "updated_at" => "2020-06-03 15:35:31"
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            "file_title" => "Zurich See"
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            "html" => """
              \n
              \n
              \n
              \n
              \n
              <H2>ZURICHSEE</H2>\n
              \n
              <P><B>A lakeside view</B><BR>\n
              <BR>\n
              <img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-00.jpg" ALT="Photo." WIDTH="380" HEIGHT="256"\n
              NATURALSIZEFLAG="0" ALIGN="BOTTOM"><BR>\n
              Photo: Shiga Prefecutual Government</P>\n
              \n
              <P><BR>\n
              <BR>\n
              <BR>\n
              </P>\n
              \n
              <H3>A. LOCATION</H3>\n
              \n
              <UL>\n
                <LI>Zurich and Schwyz, Switzerland.</li>\n
                <LI>47:15N, 8:40E; 406 m above sea level.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>B. DESCRIPTION</H3>\n
              \n
              <OL>\n
                <P>The Lake Zurich consists of two parts, a longer\n
                one with a length of about 28 km and a smaller one with a length\n
                of about 12 km. The lake lies in a valley formed by a glacier\n
                in the last ice period. With the state capital, the city of Zurich\n
                at the end of the lake, hilly shore areas offer favorable sites\n
                to live. Owing to the sewage discharge from this area, the lake\n
                became eutrophic at the beginning of this century. With the construction\n
                of sewage treatment plants, which include mechanical, biological\n
                and chemical steps in the form of phosphorus flocculation and\n
                flocculation filtration for all the wastewater in the catchment\n
                area, the loading of organic material and phosphorus compounds\n
                has been reduced, and the trophic state has tended toward mesotrophic.\n
                For one hundred years Lake Zurich water has been used as an important\n
                drinking water resource for Zurich and for various villages in\n
                its surroundings. The lake has a great importance also as a large\n
                recreation area. <BR>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>C. PHYSICAL DIMENSIONS (Q1).</H3>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Surface area [km2]</TD> \n
                    <TD>\n
                    65</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Volume [km3]</TD> \n
                    <TD>\n
                    3.3</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Maximum depth [m]</TD> \n
                    <TD>\n
                    136.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Mean depth [m]</TD> \n
                    <TD>\n
                    51.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Water level</TD> \n
                    <TD>\n
                    Regulated</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Residence time [yr]</TD> \n
                    <TD>\n
                    1.1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Catchment area [km2]</TD> \n
                    <TD>\n
                    1,740</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>D. PHYSIOGRAPHIC FEATURES</H3>\n
              \n
              <P><B>D1 GEOGRAPHICAL (Q1)</B></P>\n
              \n
              <UL>\n
                <LI>Bathymetric map: Fig. EUR-06-01.</li>\n
                <LI>Names of main islands: None.</li>\n
                <LI>Number of outflowing rivers and channels (name): 1 (Limmat\n
                R.).</li>\n
              </UL>\n
              \n
              <P><B>D2 CLIMATIC</B></P>\n
              \n
              <UL>\n
                <LI>Climatic data at Zurich, 1931-1960 (1)</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Mean temp. [deg C]</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    -0.1</TD> \n
                    <TD>\n
                    0.3</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    8.6</TD> \n
                    <TD>\n
                    12.7</TD> \n
                    <TD>\n
                    15.9</TD> \n
                    <TD>\n
                    17.6</TD> \n
                    <TD>\n
                    17.0</TD> \n
                    <TD>\n
                    14.0</TD> \n
                    <TD>\n
                    8.6</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    0.1</TD> \n
                    <TD>\n
                    8.5</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Precipitation [mm]</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    74</TD> \n
                    <TD>\n
                    70</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    107</TD> \n
                    <TD>\n
                    136</TD> \n
                    <TD>\n
                    143</TD> \n
                    <TD>\n
                    131</TD> \n
                    <TD>\n
                    108</TD> \n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    76</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    1,136</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Number of hours of bright sunshine: 1,963 hr yr-1 (1).</li>\n
              </UL>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-01.gif" width="314" height="316"></p>\n
                <p>Fig. EUR-06-01<BR>\n
                  Bathymetric map (Q1).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <UL>\n
                <LI>Water temperature: Fig. EUR-06-02.</li>\n
              </UL>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-02.gif" width="322" height="226"></p>\n
                <p>Fig. EUR-06-02<BR>\n
                  Depth/season isotherms [deg C] at Station 1, 1983 (1).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-03.gif" width="373" height="294"></p>\n
                <p>Fig. EUR-06-03<BR>\n
                  Seasonal variation of vertical water temperature [deg C] distribution,\n
                  1972-1974 (2).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <UL>\n
                <LI>Freezing period: Seldom (1).</li>\n
                <LI>Mixing type: Meromictic (1).</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>E. LAKE WATER QUALITY</H3>\n
              \n
              <P><B>E1 TRANSPARENCY [m](Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1983</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD>\n
                    5.9</TD> \n
                    <TD>\n
                    8.0</TD> \n
                    <TD>\n
                    8.0</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    5.9</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    2.4</TD> \n
                    <TD>\n
                    3.3</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    5.5</TD> \n
                    <TD>\n
                    5.5</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E2 pH (Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1983</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    S*</TD> \n
                    <TD>\n
                    8.02</TD> \n
                    <TD>\n
                    7.75</TD> \n
                    <TD>\n
                    8.02</TD> \n
                    <TD>\n
                    8.12</TD> \n
                    <TD>\n
                    8.60</TD> \n
                    <TD>\n
                    8.69</TD> \n
                    <TD>\n
                    8.61</TD> \n
                    <TD>\n
                    8.57</TD> \n
                    <TD>\n
                    8.19</TD> \n
                    <TD>\n
                    8.72</TD> \n
                    <TD>\n
                    8.72</TD> \n
                    <TD>\n
                    7.91</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    * Surface.</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E4 DO: Fig. EUR-06-04.</B></P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-04.gif" width="316" height="289"></p>\n
                <p>Fig. EUR-06-04<BR>\n
                  Vertical and seasonal distribution of DO [mg l-1](Q1).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              <B>E5 COD [mg l-1](Q3)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="14">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.50</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.50</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.50</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.45</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.10</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.40</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.10</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    1.10</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.20</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.15</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD></TD>\n
                  </TR>\n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    1.40</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.25</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD>\n
                    <TD WIDTH="8%"></TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E6 CHLOROPHYLL CONCENTRATION [micro g l-1](Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1983</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    0.54</TD> \n
                    <TD>\n
                    1.04</TD> \n
                    <TD>\n
                    1.70</TD> \n
                    <TD>\n
                    3.74</TD> \n
                    <TD>\n
                    11.54</TD> \n
                    <TD>\n
                    1.78</TD> \n
                    <TD>\n
                    1.82</TD> \n
                    <TD>\n
                    3.83</TD> \n
                    <TD>\n
                    2.17</TD> \n
                    <TD>\n
                    3.68</TD> \n
                    <TD>\n
                    1.30</TD> \n
                    <TD>\n
                    0.40</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    0.39</TD> \n
                    <TD>\n
                    1.12</TD> \n
                    <TD>\n
                    1.61</TD> \n
                    <TD>\n
                    2.22</TD> \n
                    <TD>\n
                    5.72</TD> \n
                    <TD>\n
                    1.62</TD> \n
                    <TD>\n
                    2.59</TD> \n
                    <TD>\n
                    2.89</TD> \n
                    <TD>\n
                    2.02</TD> \n
                    <TD>\n
                    1.89</TD> \n
                    <TD>\n
                    1.26</TD> \n
                    <TD>\n
                    0.42</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    0.32</TD> \n
                    <TD>\n
                    1.12</TD> \n
                    <TD>\n
                    0.58</TD> \n
                    <TD>\n
                    0.58</TD> \n
                    <TD>\n
                    1.16</TD> \n
                    <TD>\n
                    0.31</TD> \n
                    <TD>\n
                    0.35</TD> \n
                    <TD>\n
                    0.38</TD> \n
                    <TD>\n
                    0.42</TD> \n
                    <TD>\n
                    0.62</TD> \n
                    <TD>\n
                    0.36</TD> \n
                    <TD>\n
                    0.36</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    0.36</TD> \n
                    <TD>\n
                    1.06</TD> \n
                    <TD>\n
                    0.35</TD> \n
                    <TD>\n
                    0.40</TD> \n
                    <TD>\n
                    0.71</TD> \n
                    <TD>\n
                    0.22</TD> \n
                    <TD>\n
                    0.12</TD> \n
                    <TD>\n
                    0.16</TD> \n
                    <TD>\n
                    0.27</TD> \n
                    <TD>\n
                    0.16</TD> \n
                    <TD>\n
                    0.13</TD> \n
                    <TD>\n
                    0.38</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    0.28</TD> \n
                    <TD>\n
                    1.04</TD> \n
                    <TD>\n
                    0.47</TD> \n
                    <TD>\n
                    0.35</TD> \n
                    <TD>\n
                    0.56</TD> \n
                    <TD>\n
                    0.15</TD> \n
                    <TD>\n
                    0.11</TD> \n
                    <TD>\n
                    0.11</TD> \n
                    <TD>\n
                    0.29</TD> \n
                    <TD>\n
                    0.14</TD> \n
                    <TD>\n
                    0.10</TD> \n
                    <TD>\n
                    0.07</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    0.04</TD> \n
                    <TD>\n
                    0.32</TD> \n
                    <TD>\n
                    0.53</TD> \n
                    <TD>\n
                    0.29</TD> \n
                    <TD>\n
                    0.22</TD> \n
                    <TD>\n
                    0.11</TD> \n
                    <TD>\n
                    0.08</TD> \n
                    <TD>\n
                    0.10</TD> \n
                    <TD>\n
                    0.17</TD> \n
                    <TD>\n
                    0.06</TD> \n
                    <TD>\n
                    0.05</TD> \n
                    <TD>\n
                    0.04</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    0.02</TD> \n
                    <TD>\n
                    0.13</TD> \n
                    <TD>\n
                    0.15</TD> \n
                    <TD>\n
                    0.19</TD> \n
                    <TD>\n
                    0.16</TD> \n
                    <TD>\n
                    0.10</TD> \n
                    <TD>\n
                    0.04</TD> \n
                    <TD>\n
                    0.06</TD> \n
                    <TD>\n
                    0.10</TD> \n
                    <TD>\n
                    0.25</TD> \n
                    <TD>\n
                    0.05</TD> \n
                    <TD>\n
                    0.05</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    0.02</TD> \n
                    <TD>\n
                    0.07</TD> \n
                    <TD>\n
                    0.08</TD> \n
                    <TD>\n
                    0.21</TD> \n
                    <TD>\n
                    1.52</TD> \n
                    <TD>\n
                    0.11</TD> \n
                    <TD>\n
                    0.06</TD> \n
                    <TD>\n
                    0.08</TD> \n
                    <TD>\n
                    0.16</TD> \n
                    <TD>\n
                    0.25</TD> \n
                    <TD>\n
                    0.02</TD> \n
                    <TD>\n
                    0.03</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E7 NITROGEN CONCENTRATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>NH4-N [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .070</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .020</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .070</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .070</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .020</TD> \n
                    <TD>\n
                    .075</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .045</TD> \n
                    <TD>\n
                    .075</TD> \n
                    <TD>\n
                    .040</TD> \n
                    <TD>\n
                    .030</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .015</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .020</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    .025</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .035</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .015</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    .030</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    .030</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    .030</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    .040</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    &lt;.005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .200</TD> \n
                    <TD>\n
                    .180</TD> \n
                    <TD>\n
                    .200</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    .300</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .010</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .005</TD> \n
                    <TD>\n
                    .090</TD> \n
                    <TD>\n
                    .135</TD> \n
                    <TD>\n
                    .300</TD> \n
                    <TD>\n
                    .320</TD> \n
                    <TD>\n
                    .370</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>NO3-N [mg l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    .690</TD> \n
                    <TD>\n
                    .735</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .615</TD> \n
                    <TD>\n
                    .655</TD> \n
                    <TD>\n
                    .530</TD> \n
                    <TD>\n
                    .375</TD> \n
                    <TD>\n
                    .385</TD> \n
                    <TD>\n
                    .370</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    .705</TD> \n
                    <TD>\n
                    .745</TD> \n
                    <TD>\n
                    .750</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .625</TD> \n
                    <TD>\n
                    .660</TD> \n
                    <TD>\n
                    .530</TD> \n
                    <TD>\n
                    .385</TD> \n
                    <TD>\n
                    .365</TD> \n
                    <TD>\n
                    .365</TD> \n
                    <TD>\n
                    .520</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    .685</TD> \n
                    <TD>\n
                    .740</TD> \n
                    <TD>\n
                    .750</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .615</TD> \n
                    <TD>\n
                    .650</TD> \n
                    <TD>\n
                    .530</TD> \n
                    <TD>\n
                    .375</TD> \n
                    <TD>\n
                    .365</TD> \n
                    <TD>\n
                    .365</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    .690</TD> \n
                    <TD>\n
                    .735</TD> \n
                    <TD>\n
                    .750</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .615</TD> \n
                    <TD>\n
                    .665</TD> \n
                    <TD>\n
                    .540</TD> \n
                    <TD>\n
                    .420</TD> \n
                    <TD>\n
                    .370</TD> \n
                    <TD>\n
                    .370</TD> \n
                    <TD>\n
                    .520</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    .680</TD> \n
                    <TD>\n
                    .710</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .695</TD> \n
                    <TD>\n
                    .690</TD> \n
                    <TD>\n
                    .660</TD> \n
                    <TD>\n
                    .490</TD> \n
                    <TD>\n
                    .380</TD> \n
                    <TD>\n
                    .380</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .550</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    .695</TD> \n
                    <TD>\n
                    .735</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .740</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .765</TD> \n
                    <TD>\n
                    .640</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .555</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    .695</TD> \n
                    <TD>\n
                    .730</TD> \n
                    <TD>\n
                    .765</TD> \n
                    <TD>\n
                    .795</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .550</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    .705</TD> \n
                    <TD>\n
                    .715</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .870</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .515</TD> \n
                    <TD>\n
                    .545</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    .695</TD> \n
                    <TD>\n
                    .730</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .905</TD> \n
                    <TD>\n
                    .875</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .800</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    .700</TD> \n
                    <TD>\n
                    .735</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .840</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .830</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    .715</TD> \n
                    <TD>\n
                    .760</TD> \n
                    <TD>\n
                    .750</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .835</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .825</TD> \n
                    <TD>\n
                    .810</TD> \n
                    <TD>\n
                    .840</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .745</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .835</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .820</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .830</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .840</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .820</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .825</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    .840</TD> \n
                    <TD>\n
                    .745</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .765</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .825</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .830</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .810</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .770</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .825</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .830</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .775</TD> \n
                    <TD>\n
                    .860</TD> \n
                    <TD>\n
                    .850</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .855</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .835</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .845</TD> \n
                    <TD>\n
                    .865</TD> \n
                    <TD>\n
                    .880</TD> \n
                    <TD>\n
                    .650</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .855</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .815</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .795</TD> \n
                    <TD>\n
                    .870</TD> \n
                    <TD>\n
                    .925</TD> \n
                    <TD>\n
                    .830</TD> \n
                    <TD>\n
                    .580</TD> \n
                    <TD>\n
                    .670</TD> \n
                    <TD>\n
                    .635</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    .575</TD> \n
                    <TD>\n
                    .780</TD> \n
                    <TD>\n
                    .800</TD> \n
                    <TD>\n
                    .790</TD> \n
                    <TD>\n
                    .785</TD> \n
                    <TD>\n
                    .805</TD> \n
                    <TD>\n
                    .895</TD> \n
                    <TD>\n
                    .755</TD> \n
                    <TD>\n
                    .595</TD> \n
                    <TD>\n
                    .480</TD> \n
                    <TD>\n
                    .535</TD> \n
                    <TD>\n
                    .500</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E8 PHOSPHORUS CONCENTRATION</B></P>\n
              \n
              <UL>\n
                <LI>PO4-P [micro g l-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986 (03)</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    42</TD> \n
                    <TD>\n
                    35</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    26</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    11</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    9</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    11</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    28</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    39</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    28</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    43</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    13</TD> \n
                    <TD>\n
                    12</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    29</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    23</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    28</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    12</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    &lt;1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    26</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    34</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    9</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    25</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    27</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    42</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    33</TD> \n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    37</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    28</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    43</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    47</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    63</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    56</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    69</TD> \n
                    <TD>\n
                    61</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    57</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    59</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    63</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    73</TD> \n
                    <TD>\n
                    63</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    59</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    63</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    68</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    81</TD> \n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    77</TD> \n
                    <TD>\n
                    57</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    73</TD> \n
                    <TD>\n
                    67</TD> \n
                    <TD>\n
                    72</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    92</TD> \n
                    <TD>\n
                    92</TD> \n
                    <TD>\n
                    87</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    70</TD> \n
                    <TD>\n
                    72</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    91</TD> \n
                    <TD>\n
                    86</TD> \n
                    <TD>\n
                    74</TD> \n
                    <TD>\n
                    88</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    126</TD> \n
                    <TD>\n
                    118</TD> \n
                    <TD>\n
                    101</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    73</TD> \n
                    <TD>\n
                    89</TD> \n
                    <TD>\n
                    96</TD> \n
                    <TD>\n
                    115</TD> \n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    114</TD> \n
                    <TD>\n
                    125</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    180</TD> \n
                    <TD>\n
                    136</TD> \n
                    <TD>\n
                    119</TD> \n
                    <TD>\n
                    89</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    91</TD> \n
                    <TD>\n
                    123</TD> \n
                    <TD>\n
                    160</TD> \n
                    <TD>\n
                    209</TD> \n
                    <TD>\n
                    237</TD> \n
                    <TD>\n
                    193</TD> \n
                    <TD>\n
                    211</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    259</TD> \n
                    <TD>\n
                    142</TD> \n
                    <TD>\n
                    133</TD> \n
                    <TD>\n
                    96</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    126</TD> \n
                    <TD>\n
                    160</TD> \n
                    <TD>\n
                    223</TD> \n
                    <TD>\n
                    301</TD> \n
                    <TD>\n
                    267</TD> \n
                    <TD>\n
                    252</TD> \n
                    <TD>\n
                    268</TD>\n
                  </TR> \n
                </TABLE>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-05.gif" width="367" height="321"></p>\n
                <p>Fig. EUR-06-05<BR>\n
                  Vertical and seasonal distribution of PO4-P [micro g l-1] at\n
                  Station 1, 1983 (Q1).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <UL>\n
                <LI>Total-P [micro g l-1](Q3)</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    31</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    41</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    18</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    31</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    43</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    12</TD> \n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    2</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    12</TD> \n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    6</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    44</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    19</TD> \n
                    <TD>\n
                    9</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    31</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    46</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    18</TD> \n
                    <TD>\n
                    14</TD> \n
                    <TD>\n
                    2</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    31</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    22</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    6</TD> \n
                    <TD>\n
                    7</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    37</TD> \n
                    <TD>\n
                    43</TD> \n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    &lt;1</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    &lt;1</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    45</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    42</TD> \n
                    <TD>\n
                    9</TD> \n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    17</TD> \n
                    <TD>\n
                    24</TD> \n
                    <TD>\n
                    25</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    59</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    48</TD> \n
                    <TD>\n
                    47</TD> \n
                    <TD>\n
                    34</TD> \n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    37</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    32</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    50</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    53</TD> \n
                    <TD>\n
                    49</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    47</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    52</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    51</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    56</TD> \n
                    <TD>\n
                    54</TD> \n
                    <TD>\n
                    57</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    55</TD> \n
                    <TD>\n
                    61</TD> \n
                    <TD>\n
                    61</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    67</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    74</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    76</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    61</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    62</TD> \n
                    <TD>\n
                    68</TD> \n
                    <TD>\n
                    68</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    70</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    83</TD> \n
                    <TD>\n
                    92</TD> \n
                    <TD>\n
                    82</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    58</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    73</TD> \n
                    <TD>\n
                    65</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    76</TD> \n
                    <TD>\n
                    71</TD> \n
                    <TD>\n
                    74</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    94</TD> \n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    74</TD> \n
                    <TD>\n
                    64</TD> \n
                    <TD>\n
                    75</TD> \n
                    <TD>\n
                    77</TD> \n
                    <TD>\n
                    78</TD> \n
                    <TD>\n
                    92</TD> \n
                    <TD>\n
                    91</TD> \n
                    <TD>\n
                    82</TD> \n
                    <TD>\n
                    89</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    119</TD> \n
                    <TD>\n
                    101</TD> \n
                    <TD>\n
                    79</TD> \n
                    <TD>\n
                    66</TD> \n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    94</TD> \n
                    <TD>\n
                    95</TD> \n
                    <TD>\n
                    118</TD> \n
                    <TD>\n
                    140</TD> \n
                    <TD>\n
                    117</TD> \n
                    <TD>\n
                    142</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    191</TD> \n
                    <TD>\n
                    136</TD> \n
                    <TD>\n
                    121</TD> \n
                    <TD>\n
                    89</TD> \n
                    <TD>\n
                    76</TD> \n
                    <TD>\n
                    103</TD> \n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    160</TD> \n
                    <TD>\n
                    209</TD> \n
                    <TD>\n
                    254</TD> \n
                    <TD>\n
                    197</TD> \n
                    <TD>\n
                    218</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    263</TD> \n
                    <TD>\n
                    142</TD> \n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    96</TD> \n
                    <TD>\n
                    78</TD> \n
                    <TD>\n
                    128</TD> \n
                    <TD>\n
                    165</TD> \n
                    <TD>\n
                    223</TD> \n
                    <TD>\n
                    305</TD> \n
                    <TD>\n
                    291</TD> \n
                    <TD>\n
                    260</TD> \n
                    <TD>\n
                    282</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E9 CHLORIDE CONCENTRATION [mg l-1](Q3)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1986</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Depth [m]</TH> \n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    0</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.7</TD> \n
                    <TD>\n
                    3.1</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.7</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    2.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.6</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.6</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.8</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    7.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    3.4</TD> \n
                    <TD>\n
                    2.4</TD> \n
                    <TD>\n
                    3.0</TD> \n
                    <TD>\n
                    3.1</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    10</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.5</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    12.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    4.0</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    15</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    3.7</TD> \n
                    <TD>\n
                    3.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    20</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    5.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    30</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    40</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    60</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    80</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    90</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    100</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    110</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.3</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    120</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    130</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.2</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.6</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    135</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.1</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.4</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.5</TD> \n
                    <TD>\n
                    4.0</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>E10 PAST TRENDS: Fig. EUR-06-06, 07, 08, 09 and 10.</B></P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-06.gif" width="374" height="186"></p>\n
                <p>Fig. EUR-06-06<BR>\n
                  Trend of transparency (means for January-March, 1897-1900 & 1936-1980)(3).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-07.gif" width="420" height="245"></p>\n
                <p>Fig. EUR-06-07<BR>\n
                  Trends of net hypolimnetic oxygen consumption during the stagnation\n
                  period, and annual hypolimnetic oxygen minimum. Net hypolimnetic\n
                  oxygen consumption is equivalent to annual maximum (spring) minus\n
                  annual minimum (autumn)(3).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-08.gif" width="391" height="164"></p>\n
                <p>Fig. EUR-06-08<BR>\n
                  Trends of NO3-N and PO4-P in summer stagnation periods (2).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-09.gif" width="339" height="286"></p>\n
                <p>Fig. EUR-06-09<BR>\n
                  Past trend of annual averages of PO4-P (0-136 m)(Q3).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <OL>\n
                <p><img src="https://wldb-asset.ilec.or.jp/databook_html/eur/eur06-10.gif" width="380" height="280"></p>\n
                <p>Fig. EUR-06-10<BR>\n
                  Past trends of total phosphorus in the eplilimnion and O2 in\n
                  the hypolimnion between April and September (Q3).</p>\n
              </OL>\n
              \n
              <P><BR>\n
              <BR>\n
              </P>\n
              \n
              <H3>F. BIOLOGICAL FEATURES (Q1)</H3>\n
              \n
              <P><B>F1</B> FLORA</P>\n
              \n
              <UL>\n
                <LI>Emerged macrophytes <BR>\n
                Phragmites communis, Phalaris arundinacea, Schoenoplectus lacustris.</li>\n
                <LI>Floating macrophytes <BR>\n
                Nymphaea alba, Nuphar luteum (several places but mostly planted\n
                by inhabitants).</li>\n
                <LI>Submerged macrophytes <BR>\n
                Potamogeton pectinatus, P. perfoliatus, P. lucens, P. crispus,\n
                Elodea canadensis, Zannichellia palustris.</li>\n
                <LI>Phytoplankton <BR>\n
                Anabaena flos-aquae, A. planctonica, Oscillatoria rubescens,\n
                Aphanizomenon flos-aquae, Pandorina morum, Sphaerocystis schroeteri,\n
                Mougeotia sp., Dinobryon divergens, Ceratium hirundinella, Cryptomonas\n
                ovata, Rhodomonas sp., Melosira granulata, Cyclotella comta,\n
                Stephanodiscus hantzschii, Tabellaria fenestrata, Fragilaria\n
                crotonensis, Asterionella formosa, Synedra acus.</li>\n
              </UL>\n
              \n
              <P><B>F2 FAUNA</B></P>\n
              \n
              <UL>\n
                <LI>Zooplankton <BR>\n
                Nassula aurea, Tintinnopsis lacustris, Epistylis rotans, Polyarthra\n
                platyptera, Keratella cochlearis, Keratella quadrata, Notholca\n
                longispina, Asplanchna priodonta, Synchaeta pectinata, Leptodora\n
                sp., Daphnia longispina, Bosmina longirostris, Diaptomous gracilis,\n
                Cyclops strenuus, Chaoborus crystallinus.</li>\n
                <LI>Benthos <BR>\n
                Dugesia polychroa, Herpobdella octoculata, Helobdella stagnalis,\n
                Limnodrilus hoffmeisteri, Tubifex ignotus, Psammocryctes barbatus,\n
                Stylaria lacustris, Planaria sp., Bithynia tentaculata, Gyraulus\n
                albus, Lymnaea auricularia, L. peregra, Pisidium subruncatum,\n
                P. moitessierianum, P. nitidum, Dreissena polymorpha, Eucyclops\n
                serratulus, Paracyclops fimbriatus, Canthocamptus staphilinus,\n
                Caenis moesta, Polypedilum nubeculosum, Microtendipes sp., Limnochironomus\n
                pulsus, Eukjefferiella sp., Polycentropus flavomaculatus, Tinodes\n
                sp.</li>\n
                <LI>Fish <BR>\n
                Anguilla vulgaris, Esox lucius, Salmo salvelinus, S. variabilis,\n
                Coregonus wartmanni, C. schinzi, Leucisus rutilus, Abramis brama,\n
                Barbus fluviatilis, Tinca vulgaris, Cyprinus carpio, Lota vulgaris,\n
                Perca fluviatilis.</li>\n
              </UL>\n
              \n
              <P><B>F3 PRIMARY PRODUCTION RATE</B></P>\n
              \n
              <UL>\n
                <LI>Net primary production rate [mg C m-2 day-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1981</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Jan</TH> \n
                    <TH>\n
                    Feb</TH> \n
                    <TH>\n
                    Mar</TH> \n
                    <TH>\n
                    Apr</TH> \n
                    <TH>\n
                    May</TH> \n
                    <TH>\n
                    Jun</TH> \n
                    <TH>\n
                    Jul</TH> \n
                    <TH>\n
                    Aug</TH> \n
                    <TH>\n
                    Sep</TH> \n
                    <TH>\n
                    Oct</TH> \n
                    <TH>\n
                    Nov</TH> \n
                    <TH>\n
                    Dec</TH> \n
                    <TH>\n
                    Ann.</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    67</TD> \n
                    <TD>\n
                    8</TD> \n
                    <TD>\n
                    710</TD> \n
                    <TD>\n
                    2,050</TD> \n
                    <TD>\n
                    370</TD> \n
                    <TD>\n
                    1,180</TD> \n
                    <TD>\n
                    1,470</TD> \n
                    <TD>\n
                    910</TD> \n
                    <TD>\n
                    1,130</TD> \n
                    <TD>\n
                    940</TD> \n
                    <TD>\n
                    603</TD> \n
                    <TD>\n
                    560</TD> \n
                    <TD>\n
                    833</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="13">\n
                    Station 1, 1982</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    390</TD> \n
                    <TD>\n
                    420</TD> \n
                    <TD>\n
                    210</TD> \n
                    <TD>\n
                    760</TD> \n
                    <TD>\n
                    460</TD> \n
                    <TD>\n
                    1,450</TD> \n
                    <TD>\n
                    2,430</TD> \n
                    <TD>\n
                    1,070</TD> \n
                    <TD>\n
                    1,070</TD> \n
                    <TD>\n
                    380</TD> \n
                    <TD>\n
                    610</TD> \n
                    <TD>\n
                    140</TD> \n
                    <TD>\n
                    783</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>F5 FISHERY PRODUCTS</B></P>\n
              \n
              <UL>\n
                <LI>Annual fish catch [metric tons]: 189.4.</li>\n
              </UL>\n
              \n
              <P><B>F6 PAST TRENDS (Q1)</B></P>\n
              \n
              <UL>\n
                <LI>Trends of net primary production rate and phytoplankton biomass</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="10">\n
                    0-14 m</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    1974</TH> \n
                    <TH>\n
                    1975</TH> \n
                    <TH>\n
                    1976</TH> \n
                    <TH>\n
                    1977</TH> \n
                    <TH>\n
                    1978</TH> \n
                    <TH>\n
                    1979</TH> \n
                    <TH>\n
                    1980</TH> \n
                    <TH>\n
                    1981</TH> \n
                    <TH>\n
                    1982</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Primary production rate</TD> \n
                    <TD>\n
                    350</TD> \n
                    <TD>\n
                    230</TD> \n
                    <TD>\n
                    390</TD> \n
                    <TD>\n
                    230</TD> \n
                    <TD>\n
                    250</TD> \n
                    <TD>\n
                    280</TD> \n
                    <TD>\n
                    180</TD> \n
                    <TD>\n
                    305</TD> \n
                    <TD>\n
                    290</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="10">\n
                    [g C m-2 yr-1]</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Phytoplankton biomass</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    -</TD> \n
                    <TD>\n
                    2.56</TD> \n
                    <TD>\n
                    2.23</TD> \n
                    <TD>\n
                    2.05</TD> \n
                    <TD>\n
                    3.34</TD> \n
                    <TD>\n
                    2.48</TD> \n
                    <TD>\n
                    1.35</TD> \n
                    <TD>\n
                    2.87</TD>\n
                  </TR> \n
                  <TR>\n
                    <TD COLSPAN="10">\n
                    [mg l-1]</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>G. SOCIO-ECONOMIC CONDITIONS</H3>\n
              \n
              <P><B>G1 LAND USE IN THE CATCHMENT AREA (Q2)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="3">\n
                    1980</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Area [km2]</TH> \n
                    <TH>\n
                    [%]</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Natural landscape</TD>\n
                    <TD WIDTH="33%"></TD>\n
                    <TD WIDTH="34%"></TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Woody vegetation</TD> \n
                    <TD>\n
                    40.2</TD> \n
                    <TD>\n
                    23</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Others</TD> \n
                    <TD>\n
                    243.6</TD> \n
                    <TD>\n
                    14</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Agricultural land</TD> \n
                    <TD>\n
                    922.3</TD> \n
                    <TD>\n
                    53</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Residential area</TD> \n
                    <TD>\n
                    88.0</TD> \n
                    <TD>\n
                    5</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Others</TD> \n
                    <TD>\n
                    104.4</TD> \n
                    <TD>\n
                    6</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    - Total</TD> \n
                    <TD>\n
                    1,758.5</TD> \n
                    <TD>\n
                    100</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <UL>\n
                <LI>Main types of woody vegetation (Q1) <BR>\n
                Picea abies, Abies alba, Fagus silvatica, Quercus robur, Pinus\n
                silvestris, Larix decidua.</li>\n
                <LI>Main types of herbaceous vegetation (Q1) <BR>\n
                Fertilized meadow land (Agrostis, Bromus, Poa, Festuca, Lolium,\n
                Avena).</li>\n
                <LI>Levels of fertilizer application on crop fields: Moderate.</li>\n
              </UL>\n
              \n
              <P><B>G2 INDUSTRIES IN THE CATCHMENT AREA AND THE LAKE (Q1)</B></P>\n
              \n
              <UL>\n
                <LI>Main products of agriculture: Wheat, grape, vegetables and\n
                dairy products.</li>\n
                <LI>Main kinds of manufacturing products: Textile, machinery\n
                and metal.</li>\n
              </UL>\n
              \n
              <P><B>G3 POPULATION IN THE CATCHMENT AREA (Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="500" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="4">\n
                    1984</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Population</TH> \n
                    <TH>\n
                    Population density [km-2]</TH> \n
                    <TH>\n
                    Major cities (population)</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Total</TD> \n
                    <TD>\n
                    ca. 500,000</TD> \n
                    <TD>\n
                    ca. 217</TD> \n
                    <TD>\n
                    Zurich* (423,000), Stafa, Thalwil, Horgen, Wadenswil, Kusnacht,\n
                    Meilen.</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD></TD>\n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                    <TD WIDTH="25%"></TD>\n
                  </TR>\n
                  <TR>\n
                    <TD COLSPAN="4">\n
                    * Not all the city area is included in the catchment area.</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>H. LAKE UTILIZATION</H3>\n
              \n
              <P><B>H1 LAKE UTILIZATION (Q1, Q2)</B></P>\n
              \n
              <P></P>\n
              \n
              <UL>\n
                <LI>Source of water, fisheries, navigation, tourism and recreation\n
                (swimming, sport-fishing, yachting).</li>\n
              </UL>\n
              \n
              <P><B>H2 THE LAKE AS WATER RESOURCE (Q1)</B></P>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="2">\n
                    1983</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH></TH>\n
                    <TH>\n
                    Use rate [m3 sec-1]</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Domestic*</TD> \n
                    <TD>\n
                    2.2</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Industrial</TD> \n
                    <TD>\n
                    0.07</TD>\n
                  </TR> \n
                </TABLE>* The lake serves as a source of drinking water for 700,000\n
                people comprising the city of Zurich, its suburbs and lakeshore\n
                communities.\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>I. DETERIORATION OF LAKE ENVIRONMENTS AND HAZARDS</H3>\n
              \n
              <P><B>I1 ENHANCED SILTATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>Extent of damage: Not serious.</li>\n
              </UL>\n
              \n
              <P><B>I2 TOXIC CONTAMINATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>Present status: Detected but not serious.</li>\n
                <LI>Main contaminants, their concentrations and sources <BR>\n
                Station 1, 1986</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="350" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TH>\n
                    Name of contaminants</TH> \n
                    <TH>\n
                    Concentrations [ppb] Water</TH> \n
                    <TH>\n
                    Main sources</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    1, 1, 1-Trichloroethane</TD> \n
                    <TD>\n
                    0.01</TD> \n
                    <TD>\n
                    Industrial</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Trichloroethylene</TD> \n
                    <TD>\n
                    0.01</TD> \n
                    <TD>\n
                    Industrial</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Tetrachloroethylene</TD> \n
                    <TD>\n
                    0.02</TD> \n
                    <TD>\n
                    Industrial</TD>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    Afrazin</TD> \n
                    <TD>\n
                    0.06</TD> \n
                    <TD>\n
                    Different pollution sources</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>I3 EUTROPHICATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>Nuisance caused by eutrophication <BR>\n
                Unusual algal bloom (Aphanizomenon flos-aquae and Stephanodiscus\n
                hantzschii).</li>\n
                <LI>Nitrogen and phosphorus loadings to the lake [ton yr-1]</li>\n
              </UL>\n
              \n
              <OL>\n
                <P><TABLE WIDTH="570" BORDER="0" CELLSPACING="2" CELLPADDING="0">\n
                  <TR>\n
                    <TD COLSPAN="7">\n
                    1984</TD>\n
                  </TR> \n
                  <TR>\n
                    <TH>\n
                    Sources</TH> \n
                    <TH>\n
                    Rivers</TH> \n
                    <TH>\n
                    Treated sewage</TH> \n
                    <TH>\n
                    Stormwater tank</TH> \n
                    <TH>\n
                    Untreated sewage</TH> \n
                    <TH>\n
                    Precipitate</TH> \n
                    <TH>\n
                    Total</TH>\n
                  </TR> \n
                  <TR ALIGN="CENTER">\n
                    <TD>\n
                    T-P</TD> \n
                    <TD>\n
                    78</TD> \n
                    <TD>\n
                    38</TD> \n
                    <TD>\n
                    4</TD> \n
                    <TD>\n
                    3</TD> \n
                    <TD>\n
                    5</TD> \n
                    <TD>\n
                    128</TD>\n
                  </TR> \n
                </TABLE>\n
              </OL>\n
              \n
              <P><B>I4 ACIDIFICATION (Q3)</B></P>\n
              \n
              <UL>\n
                <LI>Extent of damage: None.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>J. WASTEWATER TREATMENTS (Q1, Q3)</H3>\n
              \n
              <P><B>J1 GENERATION OF POLLUTANTS IN THE CATCHMENT AREA</B></P>\n
              \n
              <OL>\n
                <P>f) Extensive coverage of pollution sources by treatment systems.\n
              </OL>\n
              \n
              <P><B>J3 SANITARY FACILITIES AND SEWERAGE</B></P>\n
              \n
              <UL>\n
                <LI>Percentage of municipal population in the catchment area\n
                provided with <BR>\n
                adequate sanitary facilities (on-site treatment systems) or public\n
                sewerage: 90%.</li>\n
                <LI>Municipal wastewater treatment systems (rate of treatment:\n
                130,000 m3 day-1) <BR>\n
                No. of quarternary treatment systems: 2. No. of tertiary treatment\n
                systems: 15 (activated sludge, with chemical precipitation of\n
                phosphorus).</li>\n
                <LI>Supplementary notes <BR>\n
                About 90% of sewage is treated in existing wastewater treatment\n
                systems. All of the 17 treatment plants will have a flocculation\n
                filtration process at the end.</li>\n
              </UL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>M. LEGISLATIVE AND INSTITUTIONAL MEASURES FOR UPGRADING LAKE\n
              ENVIRONMENTS</H3>\n
              \n
              <P><B>M1 NATIONAL AND LOCAL LAWS CONCERNED (Q1, Q2)</B></P>\n
              \n
              <UL>\n
                <LI>Names of the laws (the year of legislation)</li>\n
                <OL>\n
                  <LI>Law of Water Rights, Canton of Zurich (1901)(similar for\n
                  Canton of Schwyz)</li>\n
                  <LI>Federal Law on Water Pollution Control, Federal Government\n
                  (1971)</li>\n
                  <LI>Law on the Introduction of the Federal Law of Water Pollution\n
                  Control, Canton of Zurich (1974)(similar for Canton of Schwyz)</li>\n
                  <LI>Ordinance on Waste Water Disposal, Federal Government (1975)</li>\n
                  <LI>Law on Fisheries, Canton of Zurich (1976)</li>\n
                </OL>\n
                <LI>Responsible authorities <BR>\n
                Governments of Cts. of Zurich and Schwyz (Directorates of Hydraulic\n
                Constructions, Water Pollution Control, Fisheries, and Sanitation).</li>\n
                <LI>Main items of control <BR>\n
                Supervision of planning, maintenance and efficiency of water\n
                and waste treatment plants, and analysis of public waters (Cantonal\n
                Laboratories Zurich and Schwyz; City Water Supply Zurich).</li>\n
              </UL>\n
              \n
              <P><B>M2 INSTITUTIONAL MEASURES</B></P>\n
              \n
              <OL>\n
                <LI>Water Supply Zurich, Quality Control</li>\n
              </OL>\n
              \n
              <P><B>M3 RESEARCH INSTITUTES ENGAGED IN THE LAKE ENVIRONMENT STUDIES</B></P>\n
              \n
              <OL>\n
                <LI>Eidgenossische Anstalt fur Wasserversorgung, Abwasserreinigung\n
                und Gewasserschutz (EAWAG, part of the Swiss Federal Institute\n
                of Technology), Dubendorf</li>\n
                <LI>Limnological Station at Kilchberg, University of Zurich</li>\n
              </OL>\n
              \n
              <P><BR>\n
              </P>\n
              \n
              <H3>N. SOURCES OF DATA</H3>\n
              \n
              <OL>\n
                <LI TYPE="a" VALUE="17">Questionnaire filled by Prof. K. Wuhrman,\n
                Institut fur Gewasserschutz und Wassertechnologie, Dubendorf.</li>\n
                <LI TYPE="a" VALUE="17">Questionnaire filled by Dr. P. Liechti,\n
                Bundesamt fur Umweltschutz, Zurich.</li>\n
                <LI TYPE="a" VALUE="17">Questionnaire filled by Dr. U. Zimmermann,\n
                Wasserversorgung Zurich, Zurich.</li>\n
                <LI TYPE="1" VALUE="1">Muller, M. J. (1982) Selected Climatic\n
                Data for a Global Set of Standard Stations for Vegetation Science.\n
                306 pp. Dr. W. Junk Publishers, The Hague.</li>\n
                <LI>Zimmermann, U. (1975) Gas-Wasser-Abwasser, 55(9): 473-480.</li>\n
                <LI>Schanz, F. & Thomas, E. A. (1981) Reversal of eutrophication\n
                in Lake Zurich. Water Quality Bulletin, 6(4): 108-112 & 156.</li>\n
              </OL>\n
              \n
              \n
              \n
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Item Title	Lake Name	Item
Lake Geneva	Lake Geneva	eur-07.html
Lake Maggiore	Lake Maggiore	eur-05.html
Lake Skadar	Lake Skadar	eur-09.html
Loch Ness	Loch Ness	eur-08.html
Lunzer See	Lunzer See	eur-10.html
Windermere	Windermere	eur-11.html
World Lake Data Book	Lake Balaton	eur-04.html
Zurich See	Zurich See	eur-06.html
WLDB data list

Item Category : ILEC Publications

Item Name : Databook of World Lake Environments (Europe)
