Simulation models are used extensively to evaluate the performance of fisheries management strategies, though they must be validated to ensure that they accurately represent the real system. One of the quantitative methods available to advance in the process of validating simulation models is global sensitivity analysis (GSA). However, its use in fisheries management has been very limited. When GSA is applied to management strategy evaluation implementations, it can also help manage available resources efficiently with respect to uncertainty in the management process and the conditioning of simulation models. Mixed-fisheries management plans were recently implemented for demersal fisheries in the Northeast Atlantic, which were evaluated previously using complex bioeconomic models. Here, we applied GSA to the model used in Iberian waters, employing an efficient model design to introduce uncertainty in every single input factor. While most biological factors contributed significantly to the variance of results, only few economic factors did. Moreover, we found that increasing accuracy in the stock assessment process would mainly impact management advice and that only the management of target stocks had a real impact on the system. This highlights the importance of properly managing hake (Merluccius merluccius), which is currently managed using an empirical harvest control rule.

中文翻译：

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成为或不成为目标：这是管理混合渔业的问题

模拟模型被广泛用于评估渔业管理战略的绩效，但必须对其进行验证以确保它们准确地代表真实系统。在验证模拟模型的过程中可用于推进的定量方法之一是全局敏感性分析 (GSA)。然而，它在渔业管理中的使用非常有限。当 GSA 应用于管理战略评估实施时，它还可以帮助有效地管理可用资源，以应对管理过程中的不确定性和模拟模型的调节。最近对东北大西洋的底层渔业实施了混合渔业管理计划，之前使用复杂的生物经济模型对其进行了评估。在这里，我们将 GSA 应用于伊比利亚水域中使用的模型，采用有效的模型设计在每个输入因素中引入不确定性。虽然大多数生物因素对结果的差异有显着影响，但只有少数经济因素有影响。此外，我们发现提高库存评估过程的准确性主要会影响管理建议，只有目标库存的管理才会对系统产生真正的影响。这突出了正确管理无须鳕（Merluccius merluccius）的重要性，目前使用经验性收获控制规则进行管理。我们发现，提高库存评估过程的准确性主要会影响管理建议，只有目标库存的管理才会对系统产生真正的影响。这突出了正确管理无须鳕（Merluccius merluccius）的重要性，目前使用经验性收获控制规则进行管理。我们发现，提高库存评估过程的准确性主要会影响管理建议，只有目标库存的管理才会对系统产生真正的影响。这突出了正确管理无须鳕（Merluccius merluccius）的重要性，目前使用经验性收获控制规则进行管理。