Abstrait

SEASONAL VARIATION IN THE PHYTOPLANKTON BIODIVERSITY OF CHANDLODIA LAKE

Pradeep U. Verma, Urvi C. Gupta, Roshni P. Adiyecha and Hitesh A. Solanki

Extensive and rapid growth of planktonic algae, caused by an increased input of nutrients is a common problem in lakes. Eutrophication and excessive algal growth reduces water clarity, inhibits growth of aquatic plants, extensive oxygen depletion, accumulation of unsightly, decaying of organic matter, unpleasant odours, and killing of fishes. Chandlodia lake is also facing the similar problem. The study of phytoplankton biodiversity in Chandlodia lake was carried out seasonally during March 2012 to February 2013. The phytoplanktons were collected and were identified by using Sedgwick Rafter counting cell. In Chandlodia lake the phytoplankton’s recorded with huge amount were Cylinderospermum sp. Microcystis sp., Phormidium sp., Oscillatoria sp., Chlorella sp., Pediastrum sp., Navicula sp., and Synedra sp. The presence of this phytoplankton in huge amount indicates that the water of Chandlodia lake is polluted, as they are good indicator of pollution. And it was also found that phytoplankton growths of cyanophyceae group were dominated over chlorophyceae, bacillariophyceae and euglenophyceae group.