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<p>Fish stock assessment is essential for ensuring the sustainable utilization of marine resources. We evaluated the stock status of the <i>Pomadasys olivaceus</i> along both the Balochistan and Sindh coasts of Pakistan using Catch-based Monte Carlo Maximum sustainable yield (CMSY), Bayesian Schaefer model (BSM), and a stock production model incorporating covariates (ASPIC) models based on catch and effort data from 2000 to 2022. Results from all models indicate the <i>B</i>/<i>B</i><sub>MSY</sub> (relative biomass) values were below 1.0 and <i>F</i>/<i>F</i><sub>MSY</sub> (fishery exploitation) values&gt;1, indicating that the stock is severely overfished in both regions. The estimated maximum sustainable yield (MSY) from the CMSY and BSM methods ranged between 2 440–2 670 metric tons (mt) for Balochistan and 2 430–2 650 mt for Sindh. The ASPIC model (Fox and Logistic) also indicated overexploitation, with MSY estimates of 1 585 mt (Fox) and 1 379 mt (Logistic) for Balochistan, showing critical stock depletion. In contrast, MSY estimates from Sindh were 3 260 mt and 3 024 mt, suggesting stock condition was not over fished. These findings offer a scientific basis for the formulation of targeted management and conservation strategies by the government, particularly emphasizing urgent intervention for the Balochistan coast to ensure the long-term sustainability of the <i>P. olivaceus</i> fishery.</p>

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Comparative study of stock status and sustainable management of Pomadasys olivaceus fishery along Pakistan coast

  • 期刊论文

  • 发表日期：

    2025年11月21日

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  • Aidah Baloch,
  • Muhsan Ali Kalhoro,
  • Aamir Mahmood Memon,
  • Hasnain Raza,
  • Shaikh Sanaullah,
  • Suman Barua,
  • Xu Chen,
  • Yihong Ma,
  • Ashraf Mehreen,
  • Qun Liu

摘要

Fish stock assessment is essential for ensuring the sustainable utilization of marine resources. We evaluated the stock status of the Pomadasys olivaceus along both the Balochistan and Sindh coasts of Pakistan using Catch-based Monte Carlo Maximum sustainable yield (CMSY), Bayesian Schaefer model (BSM), and a stock production model incorporating covariates (ASPIC) models based on catch and effort data from 2000 to 2022. Results from all models indicate the B/BMSY (relative biomass) values were below 1.0 and F/FMSY (fishery exploitation) values>1, indicating that the stock is severely overfished in both regions. The estimated maximum sustainable yield (MSY) from the CMSY and BSM methods ranged between 2 440–2 670 metric tons (mt) for Balochistan and 2 430–2 650 mt for Sindh. The ASPIC model (Fox and Logistic) also indicated overexploitation, with MSY estimates of 1 585 mt (Fox) and 1 379 mt (Logistic) for Balochistan, showing critical stock depletion. In contrast, MSY estimates from Sindh were 3 260 mt and 3 024 mt, suggesting stock condition was not over fished. These findings offer a scientific basis for the formulation of targeted management and conservation strategies by the government, particularly emphasizing urgent intervention for the Balochistan coast to ensure the long-term sustainability of the P. olivaceus fishery.