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What factors affect the pelagic cladocerans of the meso-eutrophic Azibo Reservoir? IPB - Escola Superior Agrária
Geraldes, Ana Maria; Boavida, Maria José.
The assemblage patterns of pelagic Cladocera species were investigated in a meso-eutrophic reservoir from January 2000 to December 2002. Trends of environmental factors (water temperature, conductivity, pH, and nutrient concentrations), as well as of biotic factors (availability of potentially edible phytoplankton and densities of herbivorous and carnivorous copepods) were assessed. Zooplankton community was dominated by Cladocera and Copepoda. Assemblage patterns for Cladocera were identified by performing a cluster analysis on abundance data of the dominant species: Daphnia longispina, Ceriodaphnia pulchella, Bosmina longirostris and Diaphanosoma brachyurum. In winter and spring, Daphnia was dominant. In early summer and end of autumn, Ceriodaphnia and...
Tipo: Article Palavras-chave: Zooplankton; Cladocera; Copepoda; Environmental factors; Phytoplankton availability.
Ano: 2004 URL: http://hdl.handle.net/10198/707
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