P.C. Mahanta
Fishes are among the most numerous and highly diversified groups of aquatic faunae. In India, over 2400 fish species have been recorded, including alien species. The aquatic ecosystems and fisheries are subject to intense pressure from a wide range of anthropogenic and environmental disturbances. The available data indicate approximate 60% reduction in the fishes over the last three decades. It is therefore, imperative to document changes in aquatic diversity, ...