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Dutta, Sachinandan, Orlov, Alexei, Hazra, Sugata. (1399). Population biology and exploitation status of four commercially important marine fishes of the northern Bay of Bengal, India. سامانه مدیریت نشریات علمی, 20(1), 62-83. doi: 10.22092/ijfs.2021.123477
Sachinandan Dutta; Alexei Orlov; Sugata Hazra. "Population biology and exploitation status of four commercially important marine fishes of the northern Bay of Bengal, India". سامانه مدیریت نشریات علمی, 20, 1, 1399, 62-83. doi: 10.22092/ijfs.2021.123477
Dutta, Sachinandan, Orlov, Alexei, Hazra, Sugata. (1399). 'Population biology and exploitation status of four commercially important marine fishes of the northern Bay of Bengal, India', سامانه مدیریت نشریات علمی, 20(1), pp. 62-83. doi: 10.22092/ijfs.2021.123477
Dutta, Sachinandan, Orlov, Alexei, Hazra, Sugata. Population biology and exploitation status of four commercially important marine fishes of the northern Bay of Bengal, India. سامانه مدیریت نشریات علمی, 1399; 20(1): 62-83. doi: 10.22092/ijfs.2021.123477

Population biology and exploitation status of four commercially important marine fishes of the northern Bay of Bengal, India

Iranian Journal of Fisheries Sciences
دوره 20، شماره 1، فروردین 2021، صفحه 62-83    اصل مقاله (2.31 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22092/ijfs.2021.123477
نویسندگان
Sachinandan Dutta* ؛ Alexei Orlov؛ Sugata Hazra
Department of Marine Science and Fisheries, College of Agricultural and Marine Science, Sultan Qaboos University, P. O Box 34 Al-Khod 123, Sultanate of Oman
چکیده
In the present paper population structure of four commercially important fishes were studied, namely Tenualosa ilisha, Pampus argenteus, Scomberomorus guttatus and Osteogeneiosus militaris, in the Sundarban Estuary of the northern Bay of Bengal from June 2011 to March 2012. However, a thorough understanding of life history based on length and weight data of these four fishes (617 T. ilisha, 485 P. argenteus, 351 S. guttatus and 416 O. militaris) would be immensely important. Results of such studies would be important for sustainable management of these highly economic biological resources. The analysis of life history parameters of these four species, such as growth, exploitation, mortality, etc. showed that their stocks in coastal waters off West Bengal were overexploited during the study period as exploitation rate of T. ilisha, P. argenteus, S. guttatus and O. militaris were 0.78, 0.62, 0.75 and 0.54 respectively. Widespread fishing of juvenile and growing fish declined the population considerably losing the economic advantage. Good governance, strong law enforcement and effective management system should be sure for actual benefit from the fish resources and improving livelihoods of dependent communities.
کلیدواژه‌ها
Exploitation rate؛ Mortalities؛ Length–weight relationship؛ Condition factor؛ Sundarban Estuary؛ Bay of Bengal
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