Sustainability | Free Full-Text | Fish Stock Assessment for Data-Poor Fisheries, with a Case Study of Tropical Hilsa Shad (Tenualosa ilisha) in the Water of Bangladesh

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The anadromous tropical Hilsa shad shaped the biggest single-species fishery in Bangladesh, making the very best contribution to the nation’s complete fish manufacturing (14%) and practically 83% of the worldwide Hilsa catch in 2018. Nonetheless, elevated fishing strain made the fishery susceptible, and therefore, info on the inventory situation and its response to the present diploma of removing is crucial to discover the longer term potential for sustainable exploitation. This examine carried out a rigorous evaluation primarily based on three totally different methodological approaches (conventional length-frequency primarily based inventory evaluation methodology for fishing mortality and exploitation, Froese’s length-based indicators for fishing sustainability, and a surplus production-based Monte Carlo method-CMSY, for fisheries reference factors estimation) for the very best estimates of the Hilsa inventory standing within the water of Bangladesh. The current findings revealed that the inventory is more likely to be overfished attributable to over-exploitation. Relying on the outputs, this examine really helpful a decrease size restrict for the catch (> 33 cm), distinguished a selectivity sample (mesh dimension restrict ≥ eight cm), and proposed a yearly touchdown restrict (inside the vary of 263,000–315,000 tons) for the sustainable administration of the Hilsa fishery in Bangladesh.



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