IMPACT AND CONSEQUENCES OF SEASONAL FLUCTUATIONS ON WATER QUALITY AND ZOOPLANKTON COMMUNITIES IN A CERTAIN FISH FARM OX-BOW LAKE, WEST BENGAL, INDIA

Abstract

One endeavor to analyse the impact and consequences of seasonal fluctuations on water quality and zooplankton communities from a fish farm ox-bow lake, Mathura Beel was done during March, 2015 to February, 2016. During the study, the entire year was fragmented into three main seasons as summer (March to June), rainy (July to October), and winter (November to February). The data of some important water parameters and zooplanktons were recorded and analysed seasonally in 4 sampling sites viz. Dhankol, Charapole, Ramkrishna colony, and Dharampur ghat. This converse revealed the 18 rotifers, 2 copepods with numerous nauplius larvae, 1 ostracod, and 3 cladoceran species. Among zooplanktons, the most dominant group was rotifers by having with around 62-65% of total zooplankton species followed by copepods.