Species diversity indices of zooplankton from Sadatpur reservoir, Ahmednagar, Maharashtra

The study of diversity indices of zooplankton and physio-chemical characteristics were studied during 2009-10. A total of 25 species of zooplankton belonging to different taxonomic groups were identified. Among these 6 species belonging to protozoa, 10 species to rotifer, 5 species of cladocera, 3 species to copepoda and 1 species from decapoda. The numerical superiority of zooplankton revealed that 81.8% frequency occurrence of some protozoa and rotifer. The maximum value of relative density (4.36) was recorded in Sinantherina species (rotifer). The maximum value of relative frequency (15.35) was recorded in Rotaria species (rotifer). The maximum value of relative abundance (7.6) was recorded in Rotaria and Asplanchuna species (rotifer). These are pollution indicator species used for monitoring the aquatic body.