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¹ Balıkesir University, Faculty of Arts and Science, Department of Biology, 10145, Balıkesir, Turkey
² Iskenderun Technical University, Faculty of Maritime and Technology, Department of Fisheries, 31200, İskenderun, Hatay, Turkey
³ Sakarya University, Faculty of Arts and Science, Department of Biology, 54187, Adapazarı, Turkey DOI : 10.4194/1303-2712-v19_6_06 Viewed : 2738 - Downloaded : 2397 Seasonal dynamics in the zooplankton community and its relationships with certain physicochemical parameters (water temperature, Secchi disk transparency, conductivity, nitrate-nitrogen (NO_3-N), phosphate (PO₄), pH, oxidation-reduction potential (ORP) and chlorophyll-a) were studied in the eutrophic Çaygören Reservoir, Turkey from February 2007 to March 2008. Cyclops vicinus was dominant throughout the year; Acanthocyclops robustus was dominant in fall and summer; Asplanchna priodonta was dominant in fall, winter and spring at all stations. Canonical correspondence analysis (CCA) showed that A. robustus had high correlations to conductivity, C. vicinus to PO₄ and NO_3-N and Metacyclops gracilis to water temperature and chl-a. The number of individual were significantly different among the seasons and stations (P<0.05). The number of species were significantly different among the seasons (P<0.05), but not among the stations (P>0.05). Zooplankton community in the Çaygören Reservoir underwent changes in species composition from small-bodied Keywords : Canonical correspondence analysis, Cladocera, Copepoda, Rotifera