Seasonal variation in zooplankton diversity in tighra reservoir, Gwalior (Madhya Pradesh)

Zooplanktons which are present in a variety of aquatic habitats were studied with respect to their species diversity and seasonal distribution. Studies on zooplankton of Tighra reservoir, Gwalior (M.P.) were undertaken for one complete year (November 2010 to October 2011). Out of the total 20 species recorded during the study, 10 belonged to rotifera, 4 each to copepod and cladocera and 2 to protozoa. Rotifera was the most dominant group throughout the study period. Seasonal variations were observed in the distribution of zooplanktons. Seasonally, the number was highest during summer, followed by monsoon and lowest during winter.