Seasonal fluctuation of zooplankton in relation to industrial pollution in Irai river water, Dist. Chandrapur, (M.S.), India

Abstract

With the view to investigate the various changes in hydrobiological features during summer, winter and rainy season and to correlate the same with zooplankton productivity, the limnological survey of Irai river Dist. Chandrapur was undertaken during the year 2003-2004. The parameters such as temperature, conductivity, TDS, pH, CO2 DO have been studied. In the present investigation zooplankton showed low inverse correlation with temperature and pH, while moderate positive correlation with conductivity, turbidity, TDS, CO2. However, dissolved oxygen showed strong inverse correlation with temperature, CO2 and conductivity. In present investigation, among zooplankton Rotifera was the dominant group throughout the study. The highest count of zooplankton was recorded at sampling station D in winter season. The correlation coefficients between each pair of parameter for all possible correlation have been discussed in this paper.