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题名: Overview of Taiwanese Observers Program for Large Scale Tuna Longline Fisheries in Pacific Ocean from 2002 to 2006
作者: Hsiang-Wen Huang;Kuo-Nan Chung;Ju-Ping Dai;Chih-Hao Shiao
贡献者: NTOU:Institute of Marine Affairs and Resource Managemen
日期: 2008-08
上传时间: 2011-10-20T08:21:17Z
出版者: The 4th Regular Session Scientific Committee of Western and Central Pacific Fisheries Commission. , Port Moresby, Papua New Guinea.
摘要: abstract:For collecting fisheries data for scientific purposes, Taiwan started to deploy observers on distant water fishing vessels since 2002. Observers were trained to collect fisheries data and biological samplings. The data recorded include the fishing activities, catch number and weight, species identification, bycatch species, status and biological samples for some species.This report provides a general overview of the Taiwan observer program and summary of data collected. From 2002 to 2006, 23 trips on large scale tuna longline fishing vessels were observed in the Pacific Ocean. The observations days were 1590, with an average coverage rate of 3.5% by trips. More than 20 species were recorded, and 98,055 fishes were sampled. The catch composition varied by areas. In tropical area, over 50% of catch were bigeye. In temperate waters, the albacore accounted over 87% in the northern area, and 71% in the southern area. In addition, length frequency of major species and the sighting and incidental catch of ecological species were recorded, and biological samplings were collected for biological research.
關聯: WCPFC-SC4-2008/EB-WP-6
显示于类别:[海洋事務與資源管理研究所] 演講及研討會


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