Hilsa Tenualosa ilisha), the choicest table fish of Indian subcontinent, provides livelihood for 2.5 million fishermen of Bangladesh and 0.46 million fishermen of West Bengal (WB), India. Hilsa fishery contributes around 1% to the GDP of Bangladesh. Years of over-exploitation of Hilsa fishery through open access has led to an unprecedented decline in Hilsa stock in recent decades. The study aims to investigate the economic efficiency and existing management practices of Hilsa fisheries of WB (India) and Bangladesh. The Gordon-Schafer surplus production model was used to derive a deterministic bio-economic model on Hilsa fishery from the catch-effort-cost-price data of WB (India) and Bangladesh collected between 2002 and 2015. Hilsa populations of two countries have a similar growth rate (r = 0.224). Hilsa catchability coefficient (q) of Bangladesh is 0.000003553, which is about 20 times lower than WB (India) where it is 0.00007147. Fishing effort and Hilsa yield are not significantly associated with each other in WB (India) but in Bangladesh fishing effort has significant positive impact on Hilsa yield. If effort is increased by 1%, the yield in WB (India) may decrease by −1.12% whereas in Bangladesh the same may increase by 8.48%. Results indicate variable habitat conditions and biology of Hilsa are possibly more important for Hilsa yield of Bangladesh compared to WB (India). A 10–20% discount rate is sustainable option for Hilsa fisheries of WB (India) and Bangladesh. The stock reduction analysis demonstrates that WB (India) stock is severely overfished while Bangladesh stock exhibits stability in the overfishing zone. A trans-boundary management of Hilsa fishery is recommended which includes forming a joint scientific council, joint monitoring and facilitating data availability, imposing similar discount rates, ban periods, mesh sizes, and introduction of effort and landing taxes.

赫尔萨·特努洛萨·伊利沙）是印度次大陆上最鲜活的食用鱼类，为孟加拉的250万渔民和印度的西孟加拉邦（WB）的46万渔民提供了生计。希尔萨渔业对孟加拉国的GDP贡献约1％。多年以来，通过开放获取对希尔萨（Hilsa）渔业的过度开发导致了最近几十年来希尔萨（Hilsa）种群的空前减少。该研究旨在调查世界银行（印度）和孟加拉国的希尔萨渔业的经济效率和现有管理做法。Gordon-Schafer过剩生产模型用于从WB（印度）和孟加拉国2002年至2015年收集的捕捞成本-价格价格数据推导出Hilsa渔业的确定性生物经济模型。两个国家的Hilsa人口有一个相似的增长率（r = 0.224）。孟加拉国的希尔萨（Hilsa）可捕性系数（q）为0.000003553，这比WB（印度）的0.00007147低约20倍。在世界银行（印度），捕捞努力和希尔萨产量之间没有显着相关性，但在孟加拉国，捕捞努力对希尔萨产量产生了显着的积极影响。如果努力增加1％，世界银行（印度）的收益可能会下降-1.12％，而孟加拉国的收益可能会上升8.48％。结果表明，与世界银行（印度）相比，可变的栖息地条件和生物学对于赫尔萨孟加拉国的产量可能更重要。对于世界银行（印度）和孟加拉国的希尔萨（Hilsa）渔业而言，折现率为10–20％是可持续的选择。种群减少分析表明，WB（印度）种群受到严重过度捕捞，而孟加拉国种群在过度捕捞区表现出稳定性。