Study on the catch, bycatch and discard of Chinese pelagic longline fisheries in the Atlantic Ocean
Catch, bycatch and discard information is important for the assessment and management of fisheries. Using Chinese pelagic tuna longline observer data from 2010 to 2018, we studied the catch composition in the Chinese pelagic tuna longline fisheries in Atlantic targeting bigeye tuna (Thunnus obesus)...
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KeAi Communications Co., Ltd.
2024-03-01
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| Series: | Aquaculture and Fisheries |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468550X22000569 |
| _version_ | 1827264244507213824 |
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| author | Boyi Pan Jiangfeng Zhu Qinqin Lin Zhe Geng Feng Wu Yuying Zhang |
| author_facet | Boyi Pan Jiangfeng Zhu Qinqin Lin Zhe Geng Feng Wu Yuying Zhang |
| author_sort | Boyi Pan |
| collection | DOAJ |
| description | Catch, bycatch and discard information is important for the assessment and management of fisheries. Using Chinese pelagic tuna longline observer data from 2010 to 2018, we studied the catch composition in the Chinese pelagic tuna longline fisheries in Atlantic targeting bigeye tuna (Thunnus obesus) and bluefin tuna (Thunnus thynnus), and analyzed the survival status and discard rates of common bycatch species. A total of 55 species, including tunas, billfishes, sharks, sea turtles, cetaceans, seabirds, and other pelagic species, were observed. The results indicated that the catch composition of the Chinese pelagic tuna longline fishery targeting bigeye tuna was significantly different from that targeting bluefin tuna. The annual discard rates of common species decreased over this period. Discard rate by length and discard mortality for common species were varied among species. This is the first study to estimate catch, bycatch, and discard using Chinese pelagic tuna longline observer data in the Atlantic Ocean, which is important for the management of Chinese tuna longline fisheries in Atlantic Ocean. |
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| format | Article |
| id | doaj.art-680a146672404b648764ff198bda7888 |
| institution | Directory Open Access Journal |
| issn | 2468-550X |
| language | English |
| last_indexed | 2025-03-22T03:42:59Z |
| publishDate | 2024-03-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Aquaculture and Fisheries |
| spelling | doaj.art-680a146672404b648764ff198bda78882024-04-28T11:37:43ZengKeAi Communications Co., Ltd.Aquaculture and Fisheries2468-550X2024-03-0192280286Study on the catch, bycatch and discard of Chinese pelagic longline fisheries in the Atlantic OceanBoyi Pan0Jiangfeng Zhu1Qinqin Lin2Zhe Geng3Feng Wu4Yuying Zhang5College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, ChinaCollege of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; Corresponding author. College of Marine Sciences, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai, 201306, China.College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, ChinaCollege of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, ChinaCollege of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, ChinaDepartment of Biological Sciences, Florida International University, North Miami, FL, 33181, USACatch, bycatch and discard information is important for the assessment and management of fisheries. Using Chinese pelagic tuna longline observer data from 2010 to 2018, we studied the catch composition in the Chinese pelagic tuna longline fisheries in Atlantic targeting bigeye tuna (Thunnus obesus) and bluefin tuna (Thunnus thynnus), and analyzed the survival status and discard rates of common bycatch species. A total of 55 species, including tunas, billfishes, sharks, sea turtles, cetaceans, seabirds, and other pelagic species, were observed. The results indicated that the catch composition of the Chinese pelagic tuna longline fishery targeting bigeye tuna was significantly different from that targeting bluefin tuna. The annual discard rates of common species decreased over this period. Discard rate by length and discard mortality for common species were varied among species. This is the first study to estimate catch, bycatch, and discard using Chinese pelagic tuna longline observer data in the Atlantic Ocean, which is important for the management of Chinese tuna longline fisheries in Atlantic Ocean.http://www.sciencedirect.com/science/article/pii/S2468550X22000569Longline fisheryCatch compositionDiscardSize distributionAtlantic |
| spellingShingle | Boyi Pan Jiangfeng Zhu Qinqin Lin Zhe Geng Feng Wu Yuying Zhang Study on the catch, bycatch and discard of Chinese pelagic longline fisheries in the Atlantic Ocean Aquaculture and Fisheries Longline fishery Catch composition Discard Size distribution Atlantic |
| title | Study on the catch, bycatch and discard of Chinese pelagic longline fisheries in the Atlantic Ocean |
| title_full | Study on the catch, bycatch and discard of Chinese pelagic longline fisheries in the Atlantic Ocean |
| title_fullStr | Study on the catch, bycatch and discard of Chinese pelagic longline fisheries in the Atlantic Ocean |
| title_full_unstemmed | Study on the catch, bycatch and discard of Chinese pelagic longline fisheries in the Atlantic Ocean |
| title_short | Study on the catch, bycatch and discard of Chinese pelagic longline fisheries in the Atlantic Ocean |
| title_sort | study on the catch bycatch and discard of chinese pelagic longline fisheries in the atlantic ocean |
| topic | Longline fishery Catch composition Discard Size distribution Atlantic |
| url | http://www.sciencedirect.com/science/article/pii/S2468550X22000569 |
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