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Abstract

The fluctuation of zooplankton population was studied in 'Datta pukur', a seasonal semi-urban pond in Suri, Birbhum district with respect to physical and chemical parameters during March 2022 to February 2023 covering winter and summer season.Aim of this study was to evaluate suitability of zooplankton richness varied with respect to different physical and chemical parameters in favour of pond aquaculture.The water quality parameters were recorded.Temperature 14ºC to 32º C, total dissolved solids (TDS) 198-410 ppm, pH, 7,2-7.8,total alkalinity 30-56 mg/L, total hardness, 12-49 mg/L, dissolved oxygen, 3.2-7.2mg/L, dissolved CO2 3.15-14.2mg/L nitrate, 4.2-12.1 mg/L, chloride, 22-48 Mg/L, sulphate, 11-21 mg/L and carbonate, 2.10-3.58mg/L.15 species of zooplankton belong to five major type Cladocera, Rotifera, Copepoda, Ostracoda and Protozoa were recorded.Among these cladocerans were found dominant followed by protozoan members.Zooplankton population was found in increasing trend during winter months and the reverse trend was observed during summer months.A maximum of 520 nos/10L zooplankton was observed during winter month and a minimum of 280 nos/10L was during summer month with an overall mean average of 35.6 nos./L .The result indicates the fact that water quality or physico-chemical parameters were favouring zooplankton growth during winter months.This information could be utilized for inland aquaculture practices.