PHYSICO-CHEMICAL PROFILE AND PHYTOPLANKTON DIVERSITY OF MURUGHAMATTA TANK, SHIVAMOGGA,KARNATAKA, INDIAH.A.SAYESWARA, MAHESH ANAND GOUDAR AND NAFEESA BEGUMAbstract Phytoplankton diversity and physico-chemical parameters are important criteria for evaluating the suitability of water for irrigation and drinking purposes. The study was carried out in Murughamatta tank of Shivamogga district of Karnataka State for a period of twelve months from January to December 2008. The estimated water quality parameters were compared with Standard values prescribed by the Bureau of Indian Standards (BIS) and World Health Organization (WHO). The result of physico-chemical analysis revealed that the studied tank water is polluted as it possesses high BOD, free CO2 and phosphates. A total of 60 species belonging to 43 genera of phytoplankton were recorded, of which chlorophycean and diatoms were found to be dominant among four classes. Pollution tolerant species like Scendesmus quadricauda, Tetraedon muticum, Microcystis aeroginosa, Phacus sp., Euglena sp. and Coelastrum sp. were observed.
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