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:: Volume 20, Issue 1 (2021) ::
IJFS 2021, 20 Back to browse issues page
Research Article: Population biology and exploitation status of four commercially important marine fishes of the northern Bay of Bengal, India
S. Dutta * , A.M. Orlov , S. 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 , duttasachi@gmail.com
Abstract:   (2063 Views)
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.
Keywords: Exploitation rate, Mortalities, Length–weight relationship, Condition factor, Sundarban Estuary, Bay of Bengal
Full-Text [PDF 2366 kb]   (870 Downloads)    
Type of Study: Orginal research papers | Subject: Ecology
Received: 2019/11/21 | Accepted: 2020/05/6 | Published: 2021/01/21
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Dutta S, Orlov A, Hazra S. Research Article: Population biology and exploitation status of four commercially important marine fishes of the northern Bay of Bengal, India. IJFS 2021; 20 (1) :62-83
URL: http://jifro.ir/article-1-4121-en.html


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Volume 20, Issue 1 (2021) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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