Zooplankton diversity with relation to trophic status in anchar lake, Kashmir

Our work was focused on the taxonomic composition of zooplankton in Anchar lake during June 2010 to May 2011. During the investigation, 23 species of zooplankton were observed belonging to the different groups i.e., Protozoa, Rotifera, Copepoda, Cladocera and Ostrocoda. During study period, the zooplankton was composed of 06 taxa of Protozoa, 07 taxa of Rotifera, 07 taxa of Cladocera, 02 taxa of Copepoda and 01 of Ostrocoda. Comparison of the obtained results with those of earlier investigations performed during 2001 showed that changes have occurred in the interval. The total zooplankton composition is significantly changed. Comparison of diversity and density in the lake was studied with diversity indices. The study results clearly indicate intensified eutrophication of lake. This fragile ecosystem has to be prevented from further eutrophication.