Hilsa Fisheries in Hooghly-estuarine system of West Bengal, India - Nath, Ashim
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The Indian shad hilsa is one of the most important edible fishes of the country. Presently the upstream migration of hilsa into various rivers is greatly hampered by the construction of dams, barrages etc. across the rivers resulting in the fish not being able to reach its natural breeding ground. These artificial barriers have reduced the natural spawning ground as well as recruitment, which ultimately have led to the decline of fishery in many river systems of the country. Besides these, there are a number of ecological parameters such as presence of industrial and domestic effluents in most…mehr

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Produktbeschreibung
The Indian shad hilsa is one of the most important edible fishes of the country. Presently the upstream migration of hilsa into various rivers is greatly hampered by the construction of dams, barrages etc. across the rivers resulting in the fish not being able to reach its natural breeding ground. These artificial barriers have reduced the natural spawning ground as well as recruitment, which ultimately have led to the decline of fishery in many river systems of the country. Besides these, there are a number of ecological parameters such as presence of industrial and domestic effluents in most of the river systems, which also inhibit the upstream migration of hilsa. Over-exploitation in coastal areas and at the mouth of estuaries also affects hilsa migration. On the whole, hilsa fishery has been on the decline in all the major rivers of the country. In this context, present work would provide useful information on the stocks, correct mesh size determination, spawning ground, bodycomposition, reproductive development, socio-economics of the hilsa fishers.
Autorenporträt
Dr. Ashim Kumar Nath M.Sc, Ph.D is Associate Professor of the Department of Zoology (UG and PG studies), Serampore College, University of Calcutta, West Bengal, India. He works in the area of aquatic ecology and fishery. His PhD was earned at the University of Calcutta, India in the area of fish nutrition. He has published numerous research papers.