Spatial and temporal distribution of macrobenthos in Point Calimere of Southeast coast of India

Abstract

This paper deals with the spatial distribution and diversity of macrobenthos and their relationships with physico-chemical parameters in Point Calimere (Kodiakkarai). Sampling was done during 2006 to 2007. The diversity value was found above 3. A total of 75 species of benthic fauna were recorded in Point Calimere. Among these polychaetes were represented by 39 species, 14 species each by bivalves and gastropods and 7 species by crustaceans and1other group such as Siphunculid. Surface water temperature ranged from 26.18^oC to 31.92^oC. Salinity varied from 26.15 to 34.86 ppt, while water pH fluctuated from 7.9 to 8.2. Dissolved oxygen concentration ranged from 4.18 to 5.42 mg/l. However, there were obvious differences in the population density of macro fauna in the inshore and offshore stations.