Studies on Zooplanktonic Diversity of River Yamuna in Yamunanagar (Haryana) India

Zooplankton contribute significant role in aquatic ecosystem. Any change in the quality of water is reflected in its community structure. The present paper deals with the qualitative and quantitative analysis of zooplankton in Yamuna river which receives industrial effluents and domestic sewage from point and nonpoint sources. The abundance, distribution, total population, group percentage and species diversity were studied and correlated with pollution indicating water quality characteristics. Species diversity values indicated a decrease from pre effluent point to effluent discharge channel and post effluent discharge point.Cladocera was recorded as the dominant group followed by Rotifera, Copepoda, Protozoa and Ostracoda.