Volume No. 7 Issue No.: 2A Page No.: 964-972 Oct. - Dec. 2012

 

STUDIES ON PHYSICO-CHEMICAL PARAMETERS AND ZOOPLANKTON ABUNDENCE IN KOLLERU LAKE, ANDHRA PRADESH, INDIA

 

Reddy Radha Krishna M.,1 Mastan S.A.* and Srilakshmi D.2

1.Department of Biotechnology, Krishna University, Machilipatnam (INDIA)
2.Department of Biotechnology, P.G. Courses and Research Centre, DNR College, Bhimavaram (INDIA)

 

Received on : September 10, 2012

 

ABSTRACT

 

The present study was aimed to investigate seasonal variations of physico-chemical parameters and abundance of zooplankton population in Kolleru lake, Andhra Pradesh, India water samples were collected monthly at 5 different locations during February 2009 to January 2010 and analyzed for various physico-chemical parameters and to know abundance of zooplankton in various seasons. A total of 17 zooplankton were identified and they were belongs to 4 protozoan, 4 rotifera, 5 cladocera and 4 copepoda. The physico-chemical parameters of water were compared with standard values recommended by BIS. Significant variations in water quality and zooplankton abundance were observed in different seasons. In the present study, the total zooplankton population was low in summer, moderate in pre monsoon, monsoon and high in post- monsoon.

 

Keywords : Physico-chemical parameters, Zooplankton, Kolleru Lake, Pre-monsoon, Post-monsoon, BIS

 

 

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