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    Impacts of fish predation on an Ohio River zooplankton community

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    Issue Date
    2002
    Author
    Thorp, James H.
    Publisher
    Oxford University Press
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    Compared to lentic systems, much less is known about the factors that structure zooplankton communities in large river environments. In this study, we used an in situ mesocosm system, the potamocorrals, to assess the impact of larval fish on the zooplankton community in the Ohio River (USA). The responses of zooplankton to increasing biomasses of fish were taxon-dependent. The population growth rates of the most common zooplankton, Diacyclops thomasi, varied inversely with fish biomass, while other crustacean zooplankton showed no significant responses to the fish treatment. The reverse pattern was seen for the rotifer Polyarthra sp. whose population growth rates increased with increasing fish biomass. This is the first in situ evaluation of fish predation on zooplankton in a large river system and demonstrates that predation as well as physical factors may influence riverine zooplankton densities and community structure.
    Description
    This is the publisher's version, which may also be found at:http://dx.doi.org/10.1093/plankt/24.2.119
    URI
    http://hdl.handle.net/1808/10743
    DOI
    https://doi.org/10.1093/plankt/24.2.119
    Collections
    • Center for East Asian Studies Scholarly Works [352]
    • Ecology & Evolutionary Biology Scholarly Works [1558]
    Citation
    "Jack, J.D. and J.H. Thorp. 2002. Impacts of fish predation on an Ohio River zooplankton community. Journal of Plankton Research 24(2):119-127." http://dx.doi.org/10.1093/plankt/24.2.119

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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