Cephalopods have become an important global food source, but their sustainable management is challenged by unique life history characteristics associated with short lifespans and semelparous reproduction, high natural mortality rates, rapid and often nonasymptotic growth, and complex population structures. Weak stock-recruitment relationships together with the time-consuming work required for age validation and high-volume annual age determinations make traditional age-based modelling impractical. We propose that the best method for cephalopod assessment involves innovative depletion models, fitted with in-season data on catch numbers and fishing effort, to produce realistic estimates of stock biomass. A “fast lane” assessment approach is suggested that includes high-frequency data collection for separate, in-season stock assessments of each cohort to ensure sustainable exploitation of these short-lived resources. However, most cephalopod fisheries are data-poor and/or lack the infrastructure and resources needed to apply depletion methods; therefore, we also present alternative assessment methods that have been recently applied worldwide. We also offer suggestions for further research on the remaining challenges of cephalopod stock assessment and management.

中文翻译：

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头足类动物种群评估和管理：短寿命渔业资源的进步和挑战

头足类动物已成为重要的全球食物来源，但它们的可持续管理受到与寿命短和半生繁殖相关的独特生活史特征、高自然死亡率、快速且通常是非渐进式增长以及复杂的种群结构的挑战。薄弱的股票招聘关系，加上年龄验证和大量年年龄确定所需的耗时工作，使得传统的基于年龄的建模不切实际。我们建议头足类动物评估的最佳方法涉及创新的耗竭模型，并配备有关捕捞数量和捕捞努力量的季节性数据，以产生对种群生物量的现实估计。建议采用“快速通道”评估方法，包括高频数据收集，用于单独的、每个群组的季节性库存评估，以确保这些短期资源的可持续开发。然而，大多数头足类渔业数据匮乏和/或缺乏应用消耗方法所需的基础设施和资源；因此，我们还介绍了最近在全球范围内应用的替代评估方法。我们还为进一步研究头足类种群评估和管理的剩余挑战提供建议。