Journal of Environmental Biology

An assessment of plankton population of Cauvery river with reference to pollution

V. Mathivanan*, P. Vijayan, Selvi Sabhanayakam and O. Jeyachitra

Department of Zoology, Annamalai University, Annamalainagar - 608 002, India

(Received: 24 March, 2005 ; Revised received: December, 20, 2006 ; Accepted: 14 January, 2006)

Abstract: Studies on plankton of river Cauvery water, Mettur, Salem District, Tamil Nadu was made to assess the pollution of water from January 2003 to December 2003. The qualitative and quantitative evaluation of the variation in river water showed high quantity of phytoplankton and zooplankton population throughout the study period and rotifers formed dominated group over other groups of organisms. The present study  revealed that the water of river Cauvery is highly polluted by direct contamination of sewage and other industrial effluents.

Key words: River, Cauvery, Phytoplankton, Zooplankton, Pollution

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