Effects of nutrient loading and insecticide application on the ecology of Elodea-dominated freshwater microcosms. I. Water chemistry and responses of plankton.

E. van Donk, H. Prins, H. Voogd, S.J.H. Crum, T.C.M. Brock

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Nutrient additions alone did not result in a pronounced increase in phytoplankton of macrophyte-dominated freshwater model ecosystems. Grazing by zooplankton and uptake of nutrients by macrophytes prevented phytoplankton from blooming. Nutrient additions resulted in an increase in zooplankton (Cladocera, Copepoda) and a zooplanktivorous insect. The application of nutrients in combination with the insecticide chlorpyrifos, however, caused a more pronounced increase in the abundance of phytoplankton and rotifers, most probably due to the decrease in arthropod grazers and predators.
Original languageEnglish
Pages (from-to)417-439
JournalArchiv für Hydrobiologie
Publication statusPublished - 1995


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