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首页> 外文期刊>ICES Journal of Marine Science >Developing and evaluating harvest control rules with different biological reference points for the American lobster (Homarus americanus) fishery in the Gulf of Maine
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Developing and evaluating harvest control rules with different biological reference points for the American lobster (Homarus americanus) fishery in the Gulf of Maine

机译：为缅因湾的美国龙虾（Homarus americanus）渔业制定和评估具有不同生物学参考点的收获控制规则

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摘要

The American lobster (Homarus americanus) supports one of the most valuable commercial fisheries in the United States. Controversy exists, however, in terms of the biological reference point (BRP) used in assessing lobster stock status, and there is no fully established or evaluated harvest control rule (HCR). A sex-specific, size-dependent operating model is developed to evaluate the performance of two HCRs, discrete and continuous, which adjust annual fishing mortality discretely and linearly, respectively, based on the status of the fishery. For each HCR, different BRPs are considered along with management duration, recruitment dynamics, and natural mortality. HCRs with a suitable set of BRPs can drive the fishery from an undesirable status to an optimal status. The continuous HCR tends to perform better than the discrete one. The F_(target) of 0.31 year~(-1) showed the best performance in the long term by balancing the needs of the fishing industry and conservation bodies. However, this was not the case in the short term. An N_(target) of 49.6 million would allow the American lobster to be maintained at its current stock level, with high recruitment and stable natural mortality. The study provides a framework for a systematic evaluation of management regulations for the American lobster.
机译：美国龙虾（Homarus americanus）是美国最有价值的商业渔业之一。但是，关于评估龙虾种群状况的生物学参考点（BRP）存在争议，并且没有完全建立或评估的收获控制规则（HCR）。开发了一种性别特定，大小相关的操作模型，以评估两个HCR（离散和连续）的性能，它们根据渔业状况分别离散和线性调整年度捕捞死亡率。对于每个HCR，都会考虑不同的BRP以及管理时间，招聘动态和自然死亡率。带有一组合适的BRP的HCR可以将渔业从不良状态驱动到最佳状态。连续HCR的性能往往要好于离散HCR。通过平衡渔业和保护机构的需求，F_（目标）为0.31年〜（-1）在长期内显示出最佳性能。但是，短期内情况并非如此。 N_（目标）为4,960万，将使美国龙虾保持在目前的种群水平，并具有较高的征募和稳定的自然死亡率。该研究为系统评估美国龙虾管理法规提供了框架。

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