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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)62-83
Number of pages22
JournalIranian Journal of Fisheries Sciences
Volume20
Issue number1
DOIs
Publication statusPublished - 2021

Keywords

  • Bay of Bengal
  • Condition factor
  • Exploitation rate
  • Length–weight relationship
  • Mortalities
  • Sundarban Estuary

ASJC Scopus subject areas

  • Aquatic Science

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