Zooplankton acts as main sources of food for many fishes and plays an important role in early detection and monitoring the pollution of water. A number of studies has been carried out on the condition of ecology and freshwater bodies in various parts of West Bengal but in some parts of South 24 Parganas District, the ecological studies of freshwater bodies especially zooplankton studies is very scanty. The present investigation made an attempt to study the zoo planktons species in Budge Budge Railway Jhill. This Railway Jhill is situated beside the south part of Budge Budge Railway station and in front of Bogie Manufacturing factory, Kolkata, West Bengal. The quantitative studies of plankton diversity in Budge Budge Railway Jhill of Kolkata in West Bengal were carried out for the months of January 2021 to June 2022. The lowest zooplankton number (460/ltr.) was recorded in the month of June (summer) and the highest number (680/ltr.) in January (winter) due to different environmental and inflow characteristics of the water body. Zooplankton community of this Jhill in winter comprises of 10 species and in summer comprises of only 6 species belonging to Rotifera, Cladocera, Copepoda and Ostracoda collected from different zones, viz., littoral, pelagic and deepwater. Qualitatively the copepods (Cyclopes sp) and (Cypris sp) ware found to dominant species among the zooplankton community in winter and the rotifers (Branchionus sp) were found to dominant species among the zooplankton community in summer.
Budge Budge Railway Jhill, Zoo Plankton diversity, Copepoda
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