Zooplanktons and their seasonal variations of Kufa River Euphrates

الملخص EN

Four sites were selected in Kufa River for Zooplankton sampling, the sampling was monthly (November 2011 – December 2012), samples were taken by zooplankton net (50 cm in diameter).

The net was pulled at medium speed in each sample at the volume of water which passed through the net was estimated to be 0.24 m3.

Ninety nine taxa of forty six genera belonging to three groups of zooplankton were identified, the Rotifera was the predominant group among the zooplankton, which comprised (41 %) included 13families and 56 taxa, then Cladocera (36%) included 6families and 33taxa, finally Copepoda (23%) included 4families and 10taxa, some biodiversity indexes were calculated too