Diversity and Monthly Fluctuations in Density of Zooplanktons with Special Reference to Tamadalge Perenial Tank, Kolhapur (M. S.), India

The present investigation was made to study the diversity and monthly variation in density of zooplanktons at Tamadalge perennial tank of Kolhapur district, Maharashtra, India. Present investigation highlighted that 16 species of zooplankton belonging to 4 groups namely, rotifers, cladocers, copepodes and ostracods. Qualitatively and quanitatively, coepodes were observed as dominant group. All four groups have shown monthly variation during both the years and noted lower during monsoon season while higher during summer season. Rotifers ad Cladoceran groups were exhibited their presence throughout the study period. Based on the present investigation it can be concluded that the water from the reservoir is tending towards pollution as pollution tollerent copepode group was dominanting during both the years.