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No association is an island
On the significance of Paleolimnological studies of ancient lakes Lake
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acid activity algal analysis annual aquatic As(III average bacteria basin biological biomass bloom Bosmina bottom calculated carbon cells changes chemical chlorophyll coefficient correlation Daphnia decrease density depth diatoms dissolved distribution ecosystem effect energy charge environments epilimnion estimated euphotic zone eutrophic fish flow fraction freshwater Goldman groundwater growth helium-3 hypolimnetic hypolimnion increase inflow Internat Japan Lake Biwa Lake Kasumigaura lake sediments Lake Tahoe lake water layer Limnol limnological loading maximum mean measured method microcosms Microcystis mixing Mysis nitrate nitrogen nutrient observed Oceanogr oligotrophic organic matter oxygen Paajarvi particulate period periphyton phosphate phosphorus photosynthetic phytoplankton plankton population primary production ratio river rotifers samples seasonal sediments shown in Fig shrimp soil sorption species Station stream Stuttgart summer surface Table text Introduction thermocline tion trophic uptake urea values varve Verein vertical water quality water temperature zooplankton