Ellen van Donk

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In food-web studies, parasites are often ignored owing to their insignificant biomass. We provide evidence that parasites may affect trophic transfer in aquatic food webs. Many phytoplankton species(More)
Planktothrix agardhii is a widespread harmful cyanobacterium of eutrophic waters, and can produce the hepatotoxins [Asp(3)]microcystin-LR and [Asp(3)]microcystin-RR. These two microcystin variants(More)
Effects of chronic concentrations of linuron (0, 0.5, 5, 15, 50, and 150 micrograms/L) were studied in indoor, macrophyte dominated, freshwater microcosms. The concentrations were kept at a constant(More)