Is my fishing gear impacting the habitat? An impact assessment in four fisheries in the Northwest Mexican Pacific

IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY
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引用次数: 0

Abstract

The impacts of fishing activities on habitats for commercially important species may, directly and indirectly, influence species and associated communities. These effects include those on target species, bycatch species, habitats, etc. In this study, the impact of small-scale fisheries on habitats was evaluated in four fishing communities from the Northwest Mexican Pacific. The species and size selectivity of several fishing gear were evaluated, and the spatial distribution of catches was studied to assess the impacts of fishing gear using a Consequence Spatial Analysis (CSA). Our results showed that in finfish fisheries from Guaymas and Isla Natividad, the catch of the target species represents more than 75% of the total catch and in El Rosario, the catch represents less than 50%. We assessed 42 habitat types in four communities, which were qualified with low-risk scores. The fishing gears used to target commercial species are selective to optimal sizes above their maturity size. The results contribute to improving management in data-poor fisheries by evaluating the impacts of fishing on habitats and discussing their relevance for implementation.

我的渔具对栖息地有影响吗?墨西哥西北太平洋四个渔场的影响评估
捕鱼活动对重要商业物种栖息地的影响可能会直接或间接地影响物种和相关群落。这些影响包括对目标物种、副渔获物、生境等的影响。本研究评估了墨西哥西北太平洋四个渔业社区的小型渔业对生境的影响。我们评估了几种渔具对物种和大小的选择性,并研究了渔获量的空间分布,利用后果空间分析(CSA)评估了渔具的影响。结果显示,在瓜伊马斯和纳蒂威达岛的有鳍鱼类渔业中,目标鱼种的渔获量占总渔获量的 75% 以上,而在罗萨里奥岛,目标鱼种的渔获量占总渔获量的 50%以下。我们对四个社区的 42 种栖息地类型进行了评估,结果显示这些栖息地类型的风险较低。用于捕捞商业鱼种的渔具对超过成熟尺寸的最佳尺寸具有选择性。通过评估捕捞对栖息地的影响并讨论其实施的相关性,研究结果有助于改善数据匮乏的渔业管理。
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来源期刊
Ocean & Coastal Management
Ocean & Coastal Management 环境科学-海洋学
CiteScore
8.50
自引率
15.20%
发文量
321
审稿时长
60 days
期刊介绍: Ocean & Coastal Management is the leading international journal dedicated to the study of all aspects of ocean and coastal management from the global to local levels. We publish rigorously peer-reviewed manuscripts from all disciplines, and inter-/trans-disciplinary and co-designed research, but all submissions must make clear the relevance to management and/or governance issues relevant to the sustainable development and conservation of oceans and coasts. Comparative studies (from sub-national to trans-national cases, and other management / policy arenas) are encouraged, as are studies that critically assess current management practices and governance approaches. Submissions involving robust analysis, development of theory, and improvement of management practice are especially welcome.
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