Journal of Environmental Biology

Sediment texture and nutrients of Arasalar estuary, Karaikkal,  south-east coast of India

 

S. Bragadeeswaran*, M. Rajasegar, M. Srinivasan and U. Kanaga Rajan

Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, India

(Received: July 30, 2004 ; Revised received: January 29, 2005 ; Accepted: February 23, 2005)

Abstract: Sediment samples were collected for texture, composition and nutrient such as organic carbon, total nitrogen and total phosphorus for a period of two years from three stations in Arasalar estuary. The sediment temperature, pH and nutrients were higher during summer season and lower during monsoon season. At station 1, sediment texture was loamy sand during summer and premonsoon season. At station 2, clay type soil was recorded. Whereas, at station 3, clay was observed in summer and premonsoon and then it shifted to sandy loam type soil during monsoon. Sediment nutrients were lower than that of values of various ecosystem of India.

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