{"title":"渔民对安哥拉小型渔业鲨鱼和鳐鱼捕获量和贸易的看法","authors":"Ana Lúcia Furtado Soares, Rima W. Jabado","doi":"10.1002/aqc.4168","DOIUrl":null,"url":null,"abstract":"<p>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 (<i>n</i> = 83) landed elasmobranchs. Most fishers considered sharks as bycatch (74.7%, <i>n</i> = 62), while 100% targeted rays (Order Myliobatiformes), and 62.8% (<i>n</i> = 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% (<i>n</i> = 5) of fishers confirmed meat and fin exports to China (4.8%, <i>n</i> = 3). The protection of sharks was considered by 32.5% (<i>n</i> = 30) of respondents, while 21.7% (<i>n</i> = 18) believed only certain shark species should be protected. Most respondents reported that rays (80.5%, <i>n</i> = 67) and guitarfishes (61%, <i>n</i> = 51) should not be protected. Regarding the ban on fishing, none considered it for ray species, with only 6.1% (<i>n</i> = 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.</p>","PeriodicalId":55493,"journal":{"name":"Aquatic Conservation-Marine and Freshwater Ecosystems","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aqc.4168","citationCount":"0","resultStr":"{\"title\":\"Fisher perceptions of catch and trade of sharks and rays in Angolan small-scale fisheries\",\"authors\":\"Ana Lúcia Furtado Soares, Rima W. Jabado\",\"doi\":\"10.1002/aqc.4168\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>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 (<i>n</i> = 83) landed elasmobranchs. Most fishers considered sharks as bycatch (74.7%, <i>n</i> = 62), while 100% targeted rays (Order Myliobatiformes), and 62.8% (<i>n</i> = 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% (<i>n</i> = 5) of fishers confirmed meat and fin exports to China (4.8%, <i>n</i> = 3). The protection of sharks was considered by 32.5% (<i>n</i> = 30) of respondents, while 21.7% (<i>n</i> = 18) believed only certain shark species should be protected. Most respondents reported that rays (80.5%, <i>n</i> = 67) and guitarfishes (61%, <i>n</i> = 51) should not be protected. Regarding the ban on fishing, none considered it for ray species, with only 6.1% (<i>n</i> = 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.</p>\",\"PeriodicalId\":55493,\"journal\":{\"name\":\"Aquatic Conservation-Marine and Freshwater Ecosystems\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-05-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aqc.4168\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Aquatic Conservation-Marine and Freshwater Ecosystems\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/aqc.4168\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aquatic Conservation-Marine and Freshwater Ecosystems","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/aqc.4168","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
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.
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.