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首页> 外文期刊>ICES Journal of Marine Science >A GIS-based framework for addressing conflicting objectives in the context of an ecosystem approach to fisheries management-a case study of the Portuguese sardine fishery
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A GIS-based framework for addressing conflicting objectives in the context of an ecosystem approach to fisheries management-a case study of the Portuguese sardine fishery

机译：一种基于地理信息系统的框架，用于在生态系统方法进行渔业管理的情况下解决相互矛盾的目标-以葡萄牙沙丁鱼渔业为例

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An ecosystem approach to fisheries management (EAFM) is as a new paradigm in fisheries management. In this study, a combination of geographic information systems (GISs) and multi-criteria decision-making method (MCDM) is proposed as a framework supporting an ecosystem approach to European sardine (Sardina pilchardus, Clupeidae) fishery management in Portugal. This case study was chosen due to the recent severe decline shown by the species. To develop an EAFM for the sardine fishery, a set of criteria were defined based on literature review and expert knowledge. To address multiple conflicting objectives, namely conservation and fisheries, five scenarios were considered: (i) baseline; (ii) nurseries protection; (iii) spawning areas protection; (iv) fishery profit driven, and (v) safeguarding dependent fishing communities. Combination of GIS and MCDM methods highlighted important areas to implement spatial conservation measures for sardine. The analyses indicate that some areas are suitable for conservation in several scenarios, such as the area near Aveiro and the area near the Tejo estuary. However, conservation measures implemented in the area near Aveiro would imply higher economic trade-offs when compared with the actions applied in the region near the Tejo estuary. Results also suggested some of the conservation objectives, such as the protection of sardine eggs and juveniles, to not be compatible. The proposed framework is an important tool supporting EAFM by addressing conflicting objectives, trade-offs and identifying areas that could be considered as potential fishery closure sites or subjected to further analyses.
机译：生态系统渔业管理方法（EAFM）是渔业管理的新范例。在这项研究中，地理信息系统（GISs）和多准则决策方法（MCDM）的结合被提出作为支持在葡萄牙对欧洲沙丁鱼（Sardina pilchardus，Clupeidae）渔业管理采取生态系统方法的框架。选择该案例研究是由于该物种最近表现出的严重衰退。为了发展沙丁鱼渔业的EAFM，根据文献综述和专家知识定义了一组标准。为了解决多重矛盾的目标，即保护和渔业，考虑了五种情况：（i）基准； （ii）托儿所的保护； （iii）保护产卵区； （iv）渔业利益驱动，以及（v）保护依赖的捕鱼社区。 GIS和MCDM方法的结合突出了实施沙丁鱼空间保护措施的重要领域。分析表明，某些地区在几种情况下都适合保存，例如阿威罗附近的地区和特茹河口附近的地区。但是，与在特茹河口附近地区采取的行动相比，在阿威罗附近地区采取的保护措施将意味着更高的经济权衡。结果还表明，某些保护目标（如沙丁鱼卵和幼鱼的保护）不兼容。拟议的框架是一个重要的工具，可通过解决相互矛盾的目标，权衡取舍并确定可被视为潜在的渔业禁渔点或进行进一步分析的领域来支持EAFM。

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