Optimized catch of the Largehead hairtail (Trichiurus lepturus) in the waters of the Oman Sea (Sistan and Baluchestan Province)

Document Type : scientific research article

Author

Offshore fisheries research center(chabahar), Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization.

Abstract

The purpose of this study to develop a framework for investigating the catch trend and estimation of optimized catch limit of the T. lepturus stock by collecting catch data in the northern waters of the Oman Sea. In this research, catch data was collected for 20 years and optimized catch limit was estimate with the help of limited data approach and R software. The average (95% confidence interval) of the Bayesian surplus production model and Monte Carlo simulation for the intrinsic growth rate (r), maximum sustainable yield (MSY), biomass of maximum sustainable yield (BMSY), and fishing mortality of maximum sustainable yield (Fmsy) were obtained 0.92 (1.12-0.76) annually, 8.42 (12.5 – 5.68) thousand tons, 18.2 (12.8 - 25.8) thousand tons, 0.46 (0.56-0.38) per year, respectively. Results in this study showed exploitation ratio the Largehead hairtail stock is over fishing and decrease exploitation ratio and fishing effort proposed.

Keywords

References

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Journal of Utilization and Cultivation of Aquatics
Volume 8, Issue 4
March 2020
Pages 53-62

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