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首页> 外文期刊>ICES Journal of Marine Science >The eastern Baltic cod fishery: a fleet-based management strategy evaluation framework to assess the cod recovery plan of 2008
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The eastern Baltic cod fishery: a fleet-based management strategy evaluation framework to assess the cod recovery plan of 2008

机译：波罗的海东部鳕鱼渔业：基于船队的管理战略评估框架，以评估2008年的鳕鱼回收计划

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摘要

A management strategy evaluation framework was developed for the international Baltic cod fishery to evaluate the performance and robustness of the 2008 multi-annual management plan for the eastern stock. The spatially explicit management evaluation covered two cod recruitment regimes and various fleet adaptation scenarios. The tested management options included total allowable catch control, direct effort control, and closed areas and seasons. The modelled fleet responded to management by misreporting, improving catching power, adapting capacity, and reallocating fishing effort. The model was calibrated with spatially and temporally disaggregated landings and effort data from five countries covering 83% of the total cod catches. The simulations revealed that the management plan is robust and likely to rebuild the stock in the medium term even under low recruitment. Direct effort reduction limited underreporting of catches, but the overall effect was impaired by the increased catching power or spatio-temporal effort reallocation. Closures had a positive effect, protecting part of the population from being caught, but the effect was impaired if there was seasonal effort reallocation. Over the entire 15-year simulation period, all fleets could realize variable but positive profits under all scenarios tested, owing to stock recovery.
机译：为国际波罗的海鳕鱼渔业制定了管理战略评估框架，以评估2008年东部种群多年管理计划的业绩和稳健性。在空间上明确的管理评估涵盖了两种鳕鱼招募制度和各种舰队适应方案。经过测试的管理选项包括总允许捕捞量控制，直接努力控制以及封闭区域和季节。模拟船队通过错误报告，提高捕捞能力，适应能力和重新分配捕捞努力来回应管理。该模型已根据时空分类的着陆情况和来自五个国家/地区的工作量数据进行了校准，这些数据覆盖了鳕鱼总捕获量的83％。模拟结果表明，该管理计划是可靠的，即使在招聘人数较少的情况下，也有可能在中期重建库存。直接减少工作量限制了渔获物漏报，但总体效果因捕获力增加或时空工作量重新分配而受到损害。封锁具有积极作用，可以防止部分人口被捕，但如果重新分配季节性工作量，这种影响会受到损害。在整个15年的模拟期内，由于存货回收，所有车队在所有经过测试的情况下都可以实现可变但正的利润。

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