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首页> 外文期刊>ICES Journal of Marine Science >Evaluating the parameters of a MSY control rule for the Bristol Bay, Alaska, stock of red king crabs
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Evaluating the parameters of a MSY control rule for the Bristol Bay, Alaska, stock of red king crabs

机译:评估阿拉斯加布里斯托尔湾红色帝王蟹种群MSY控制规则的参数

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摘要

A maximum sustainable yield (MSY) control rule, which defines the level of overfishing, and determines the control rule parameters based on an age-, sex-, and size-structured assessment for Bristol Bay red king crabs (Paralithodes camtschaticus) is developed. F_(x%) (F corresponding to x% spawning potential ratio) is used as a proxy for F_(MSY) and a minimum spawning-stock biomass (to open the fishery) for incorporation into the MSY control rule. The performance of the selected MSY control rule and the associated target control rule is evaluated using stochastic simulations. F_(50%) is a reasonable proxy for F_(MSY) when effective spawning biomass is used as the stock biomass in the stock-recruitment relationship. This method with appropriate modifications might be used for determining biological reference points and developing control rules for any crustacean stock with discrete growth, complex reproductive dynamics, and single sex exploitation.
机译:开发了最大可持续产量(MSY)控制规则,该规则定义了过度捕捞的水平,并根据年龄,性别和大小结构评估对布里斯托尔湾红帝王蟹(Paralithodes camtschaticus)确定了控制规则参数。 F_(x%)(F对应于x%产卵潜力比率)被用作F_(MSY)和最小产卵生物量(用于开放渔业)的替代品,以纳入MSY控制规则。使用随机模拟评估所选MSY控制规则和关联目标控制规则的性能。当使用有效产卵生物量作为库存-招聘关系中的库存生物量时,F_(50%)是F_(MSY)的合理替代。对该方法进行适当修改后,可用于确定生物参考点,并为具有离散生长,复杂生殖动力学和单性剥削的任何甲壳类种群制定控制规则。

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