Travaux, Volume 23, Part 2; Volume 23, Part 4 |
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Abstract abundance accumulation acid activity analysis aquatic Austria bacterial Biology biomass Canada carbon cells changes collected communities concentration Daphnia density Department Department of Biology depth determined distribution Ecology effect eggs environment Environmental estimates et al experimental experiments factor Federal Republic feeding filtered Finland fish flow France freshwater groups growth important increase indicate individuals Inst Institute Italy Japan laboratory lake larvae length levels light Limnol Limnologie macrophytes mean measured method Michigan mussels natural North nutrient observed organic patterns period phytoplankton plankton plants population predation present prey production Prof range ratio reported Republic of Germany Research river rotifer saline samples Sciences Seasonal sediments showed species spring Station stream summer surface Table temperature tion tissue University values weight Zealand Zoology zooplankton