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Zooplankton, phytoplankton and the microbial food web in two turbid and two clearwater shallow lakes in Belgium
Muylaert, K.; Declerck, S.; Geenens, V.; Van Wichelen, J.; Degans, H.; Vandekerkhove, J.; Van Der Gucht, K.; Vloemans, N.; Rommens, W.; Rejas, D.; Urrutia, R.; Sabbe, K.; Gillis, M.; Decleer, K.; De Meester, L.; Vyverman, W. (2003). Zooplankton, phytoplankton and the microbial food web in two turbid and two clearwater shallow lakes in Belgium. Aquat. Ecol. 37(2): 137-150.
In: Aquatic Ecology. Springer: Dordrecht; London; Boston. ISSN 1386-2588; e-ISSN 1573-5125, meer
Peer reviewed article  

Beschikbaar in  Auteurs 
    VLIZ: Open Repository 56627 [ OMA ]

    Aquatic communities > Plankton > Phytoplankton
    Aquatic communities > Plankton > Zooplankton
    Biology > Microbiology
    Environments > Aquatic environment > Pelagic environment
    Food webs
    Particulates > Suspended particulate matter
    Properties > Physical properties > Turbidity
    Water > Shallow water
    Water bodies > Inland waters > Lakes > Eutrophic lakes
    Belgium, West-Vlaanderen, Blankaart L. [Marine Regions]; Belgium, West-Vlaanderen, De Maten L. [Marine Regions]
    Zoet water
Author keywords
    alternative stable states; biomanipulation; eutrophic shallow lakes; macrophytes; phytoplankton; zooplankton

Auteurs  Top 
  • Muylaert, K., meer
  • Declerck, S., meer
  • Geenens, V., meer
  • Van Wichelen, J., meer
  • Degans, H., meer
  • Vandekerkhove, J.
  • Van Der Gucht, K., meer
  • Vloemans, N.
  • Rommens, W., meer
  • Rejas, D.
  • Urrutia, R.

    Components of the pelagic food web in four eutrophic shallow lakes in two wetland reserves in Belgium ('Blankaart' and 'De Maten') were monitored during the course of 1998-1999. In each wetland reserve, a clearwater and a turbid lake were sampled. The two lakes in each wetland reserve had similar nutrient loadings and occurred in close proximity of each other. In accordance with the alternative stable states theory, food web structure differed strongly between the clearwater and turbid lakes. Phytoplankton biomass was higher in the turbid than the clearwater lakes. Whereas chlorophytes dominated the phytoplankton in the turbid lakes, cryptophytes were the most important phytoplankton group in the clearwater lakes. The biomass of microheterotrophs (bacteria, heterotrophic nanoflagellates and ciliates) was higher in the turbid than the clearwater lakes. Biomass and community composition of micro- and macrozooplankton was not clearly related to water clarity. The ratio of macrozooplankton to phytoplankton biomass - an indicator of zooplankton grazing pressure on phytoplankton - was higher in the clearwater when compared to the turbid lakes. The factors potentially regulating water clarity, phytoplankton, microheterotrophs and macrozooplankton are discussed. Implications for the management of these lakes are discussed.

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