Eutrophication of deep lakes: proceedings of a Seminar on Eutrophication of Deep Lakes held on 19-20 June 1978 at Gjøvik, Norway
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algal biomass algal growth Anabaena Anabaena flos-aquae areas average basin benthic biological biomass blue-green algae bornetii f Bosmina bottom fauna catchment chemical chironomid chironomid community chlorophyll Cladocerans composition Daphnia decrease deep lakes density diatoms Dillon distribution dominant effect epilimnion eutrophic lakes factors fertility fish freshwater Golterman Greifensee Heterotrissocladius Holtan Hydrobiol Idrobiol increase inland waters investigations KALAMALKA LAKE Lake Lugano Lake Maggiore Lake Mj0sa Limnol limnological mean depth mesotrophic microcystin Microcystis Monodiamesa Norway Norwegian nutrient nutrient load observed Oceanogr OECD Okanagan Lake oligochaetes oligotrophic lake Oscillatoria bornetii phosphate concentration phosphorus phosphorus concentration phosphorus loading phytoplankton plankton pollution population predation predicted primary production programme Rast and Lee Ravera reduced relationship rivers rocks sediment sewage SKAHA LAKE soil Sweden tenuis total phosphorus toxic toxins trophic Tubifex values vegetation Verein Verh Vollenweider water bodies water quality Water Research watersheds zooplankton zooplankton association