Studies on Zooplankton Diversity of Kavery River at Omkareshwar Area
Keywords:
Kavery River, zooplankton, biological Indicators, aquatic biotaAbstract
Air, water, land, flora and fauna are the natural resources of the earth. Water is vitally important substance. It is the medium, which gave birth to first primitive living molecules. The role of planktonic organisms in aquatic environment is an essential link in the food chain and they are capable of affecting the entire aquatic biota. For the study of water quality, the limnological observation is needed. As the living organisms found in water are reliable indicators of water quality. Most of the organisms are being extensively used as indicators of water pollution. The biological indicators provide a direct clue and quick information of the aquatic systems. In present study, the zooplankton of the River Kavery was studied for a period of one year. It deals with the total zooplankton diversity and seasonal variation of river Kavery. The qualitative samples observed from the study site showed an annual species diversity of 48 species. Out of 4809 species belonged to Protozoa, 15 to Rotifera, 16 to Cladocera , 06 to Copepoda and 02 to Ostracoda .The maximum zooplankton species(45) were recorded in summer 2009 and the minimum species diversity (31) occurred in the winter season 2008-09 at the study site of river Kavery. The rich diversity of plkankton in River Kavery may be due to sufficient nutrients present in the river.
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