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首页> 外文期刊>ICES Journal of Marine Science >Six steps to produce stock assessments for the Marine Strategy Framework Directive compliant with Descriptor 3
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Six steps to produce stock assessments for the Marine Strategy Framework Directive compliant with Descriptor 3

机译：为与描述符3的符合描述符符合的海洋战略框架指令产生股票评估的六个步骤

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In the European Union (EU), the ecosystem approach to fisheries is implemented through several directives and polices, which are overarched by the Marine Strategy Framework Directive (MSFD). The MSFD requires the assessment of the environmental status of exploited fish and shellfish stocks, among others, to advise the EU Common Fisheries Policy (CFP) on sustainable catch options. The stock assessments for the CFP and the MSFD are supposed to be congruent, yet they differ in several substantial subjects. While the annual CFP assessment is based on two indicators, fishing mortality (F) and spawning stock biomass (SSB), in its Descriptor 3 (D3) the MSFD requires the assessment of three criteria (F, SSB, and age or size structure) within a six year period. Assessing exploited fish and shellfish stocks under the MSFD by using existing CFP assessments has therefore been a half-completed task, which had to be fulfilled by the member states of the EU. This paper suggests six easy steps, referred to as "quick wins" (QW), which are based on existing information from CFP stock assessments. The implementation of these six QW would allow for assessments of exploited fish and shellfish stocks that are compliant to D3. These QW are to (i) assess length/age structure within a stock, (ii) analyse and assess selectivity by fisheries, (iii) use all available information to assess a stock, (iv) use response indicators to assess environmental targets, (v) provide integrated stock-specific advice, and (vi) provide assessments with a mid-term perspective over a-period of six years. International Council for the Exploration of the Sea (ICES) combines the infrastructure and expertise to produce stock-specific assessment products tailored to the requirements of MSFD D3. Thereby, ICES could provide a valuable service to EU member states in the north-east Atlantic region by providing scientifically validated, quality-assured, and MSFD-compliant single-stock assessment products. This would be a big advancement towards implementing the ecosystem approach to fisheries management within Europe.
机译：在欧盟（欧盟）中，通过若干指令和政策实施了渔业的生态系统方法，这些指令和策略由海洋战略框架指令（MSFD）总是如此。 MSFD要求评估利用鱼类和贝类股票的环境状况，其中包括欧盟普通渔业政策（CFP）对可持续捕捞期权。 CFP和MSFD的股票评估应该是一致的，但它们的几个主要科目不同。虽然年度CFP评估基于两种指标，但在其描述符3（D3）中，MSFD在其描述符3（D3）中，捕捞死亡率（F）和产卵生物量（SSB）需要评估三个标准（F，SSB和年龄或尺寸结构）在六年内。因此，通过使用现有的CFP评估评估MSFD下的被利用的鱼类和贝类股份已成为一项半完整的任务，该任务必须由欧盟成员国履行。本文提出了六个简单的步骤，称为“快速获胜”（QW），其基于CFP股票评估的现有信息。这六夸脱的实施将允许评估符合D3的被剥削的鱼类和贝类股票。这些QW是（i）评估股票中的长度/年龄结构，（ii）通过渔业分析和评估选择性，（iii）使用所有可用信息来评估库存，（iv）使用响应指标评估环境目标，（ v）提供综合的股票特定建议，（vi）在六年的时间内提供中期视角的评估。国际探索海洋委员会（ICES）结合了基础设施和专业知识，以生产针对MSFD D3的要求量身定制的股票特定的评估产品。因此，谢谢斯可以通过提供科学认证，质量保证和MSFD标准的单股评估产品，为东北大西洋地区欧盟成员国提供有价值的服务。这将是在欧洲境内实施渔业管理的生态系统方法的重要进步。

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