渔民对安哥拉小型渔业鲨鱼和鳐鱼捕获量和贸易的看法

IF 2.5 3区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Ana Lúcia Furtado Soares, Rima W. Jabado
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引用次数: 0

摘要

小型渔业确保安哥拉沿海社区的粮食安全和就业。这些充满活力、分布广泛的渔业大多不受监管,尽管它们可能对海洋巨型动物产生重大影响,但可获得的数据却很有限。我们采用访谈调查的方式,调查当地渔民与箭鱼(鲨鱼和鳐鱼)的互动情况,并收集有关利用、交易和看法的信息。所有渔民(n = 83)都捕捞了鞘鳃类动物。大多数渔民认为鲨鱼是副渔获物(74.7%,n = 62),而 100%的渔民以鳐鱼(Myliobatiformes 目)为目标,62.8%(n = 52)的渔民以吉他鱼(Rhinopristiformes 目)为目标。超过80%的渔民报告说,在过去30年中,鞘鳃亚纲鱼类的渔获量和大小都在下降,这引起了人们对这些渔业可持续性的担忧。鞘鳃类产品的利用和贸易路线各不相同,有出口到中国的(鳍),也有在当地市场销售的(肉)。具体而言,8.4%(n = 5)的渔民确认向中国出口肉类和鱼翅(4.8%,n = 3)。32.5%(n = 30)的受访者认为应该保护鲨鱼,而 21.7%(n = 18)的受访者认为只应该保护某些鲨鱼物种。大多数受访者认为鳐鱼(80.5%,n = 67)和吉他鱼(61%,n = 51)不应受到保护。关于禁渔,没有人认为鳐鱼物种应该禁渔,只有 6.1%(n = 5)的人支持吉他鱼应该禁渔。我们强调缺乏专门针对弹涂鱼的保护措施,需要采取多管齐下的方法为政策提供信息。考虑到这些渔业的规模,迫切需要制定和实施管理行动,以确保鞘鳃类渔业的可持续性,同时保障沿海社区的生计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Fisher perceptions of catch and trade of sharks and rays in Angolan small-scale fisheries

Fisher perceptions of catch and trade of sharks and rays in Angolan small-scale fisheries

Small-scale fisheries ensure food security and employment in Angolan coastal communities. These dynamic, widespread fisheries remain mostly unregulated, with limited data available despite their likely significant impact on marine megafauna. We used an interview-based survey to investigate local fisher interactions with elasmobranchs (sharks and rays) and gather information on utilization, trade and perceptions. All fishers (n = 83) landed elasmobranchs. Most fishers considered sharks as bycatch (74.7%, n = 62), while 100% targeted rays (Order Myliobatiformes), and 62.8% (n = 52) targeted guitarfishes (Order Rhinopristiformes). Over 80% of fishers reported declining catches and sizes of elasmobranchs over the last 30 years, raising concerns about the sustainability of these fisheries. Utilization and trade routes varied depending on elasmobranch products, with exports to China (fins) and local market sales (meat). Specifically, 8.4% (n = 5) of fishers confirmed meat and fin exports to China (4.8%, n = 3). The protection of sharks was considered by 32.5% (n = 30) of respondents, while 21.7% (n = 18) believed only certain shark species should be protected. Most respondents reported that rays (80.5%, n = 67) and guitarfishes (61%, n = 51) should not be protected. Regarding the ban on fishing, none considered it for ray species, with only 6.1% (n = 5) supporting this idea for guitarfishes. We highlight the lack of elasmobranch-specific conservation measures and the need for a multi-pronged approach to inform policy. Considering the scale of these fisheries, management actions need to be urgently developed and implemented to ensure the sustainability of elasmobranch fisheries while securing the livelihoods of coastal communities.

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来源期刊
Aquatic Conservation-Marine and Freshwater Ecosystems
Aquatic Conservation-Marine and Freshwater Ecosystems 环境科学-海洋与淡水生物学
CiteScore
5.50
自引率
4.20%
发文量
143
审稿时长
18-36 weeks
期刊介绍: Aquatic Conservation: Marine and Freshwater Ecosystems is an international journal dedicated to publishing original papers that relate specifically to freshwater, brackish or marine habitats and encouraging work that spans these ecosystems. This journal provides a forum in which all aspects of the conservation of aquatic biological resources can be presented and discussed, enabling greater cooperation and efficiency in solving problems in aquatic resource conservation.
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