Ecotoxicological effects on zooplankton-phytoplankton interactions in eutrophied waters

    Research output: Thesisinternal PhD, other


    This thesis focuses on the cascade effects of reduced grazing of algae by daphnids in eutrophic waters due to toxic stress. Daphnids (and other zoöplankton) play a critical role in the pelagic foodweb by balancing the top-down control over the lower trophic levels (their foodsource, i.e. algae) and the bottom-up control over the higher trophic levels (the carrying capacity for their predators, i.e. fish). It has been hypothesized and demonstrated that reduced daphnid grazing effectiveness can switch a lake into a eutrophied, turbid state at nutriënt levels at which a viable daphnid population can control the algal development towards a clear water state
    Original languageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • VU University Amsterdam
    • van Straalen, N.M., Promotor, External person
    Award date20 Dec 2004
    Place of PublicationHippolytushoef
    Print ISBNs9789080914117
    Publication statusPublished - 2004


    • water quality
    • eutrophication
    • toxicology
    • algae
    • lakes
    • netherlands
    • ecotoxicology

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