Author(s):

Rajesh Mishra, V. K. Kanungo, Swati Shrivastava and R. K. Agrawal

Abstract: Seasonal abundance of zooplanktons was investigated in five ponds Budha (S1), Maharajbandh (S2), Raja pond (S3), Telibandha pond (S4) and Dumar pond (S5) in Raipur city of Chhattisgarh during the year 2011.A total of 34 species of zooplanktons belonging to five major groups Protozoa, Rotifera, Cladocera, Copepoda and Ostracoda were recorded during the investigation in three seasons during the year. The zooplanktons observed were 6 of Protozoa, 22 of Rotifera, 2 of Cladocera, 3 of Copepoda and one of Ostracoda. Rotifers were the dominant group recorded during the present study composed of 13 genera and 22 species .Rotifers constitute 64.70% of total species recorded during the present study.1, 2and 3 genera were recorded of Ostracoda, Cladocera and Copepoda respectively. A total of 4 genera and 6 species of Protozoans were recorded in five ponds of Raipur city. Due to suitability of temperature and other environmental condition the zooplanktons abundance was higher in summer season, intermediate in winter season and lower in rainy season. The presence of maximum number of Rotifers indicated the eutrophication of the investigated ponds. In Rainy season lower diversity of zooplanktons was recorded due to higher turbidity of water in ponds.

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