Bioindicators of pollution in lentic water bodies of Nagpur city.

The present study deals with assessment of water quality of four selected lakes in the Nagpur city using physicochemical and biological parameters especially phytoplankton and zooplankton community. Tropic level and pollution status of lakes were assessed on the basis of the Palmer's Pollution Index, Shannon Wiener Index and physico-chemical parameters. 57 genera belonging to 7 groups of phytoplankton and 10 genera belonging to 3 groups of zooplankton were identified from the lakes. Different patterns of dominance and sub-dominance of indicator plankton community and species along with physico-chemical quality observed confirm the pollution status of the lakes.