Observations on the ecology and food habits of the 'Pearlspot' Etroplus suratensis (Bloch).

Reni, K (1994) Observations on the ecology and food habits of the 'Pearlspot' Etroplus suratensis (Bloch). Masters thesis, Cochin University of Science and Technology.

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Abstract

Explosion of human population and the decreasing food supply from terrestrial sources have diverted man's attention towards the aquatic environment for supplementing his food requirements. Thus, aquaculture has been gaining importance for achieving additional production of proteinaceous food. The continually expanding demand for protein-rich fishery products, the stagnating capture fish production, the risk prone, capital-intensive and technology-oriented deep sea exploitation, the ever-increasing fuel costs, coupled with the need to generate more employment opportunities for the rural traditional fishermen have all created an awareness among scientists, policy makers, fishfarmers and enterpreneurs to evolve new strategies for converting the vast derelict swamps and low lying water bodies adjacent to backwaters and coastal zones into productive fish farms at a comparatively low cost and with the locally available technologies. In view of these factors, it is generally felt that the traditional extensive fish culture practices with minimum inputs is a more attractive, feasible and economically viable solution to increase fish production, rather than to concentrate on an already stagnating coastal capture fisheries or to venture into the uncertain deep sea for exploitation.

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