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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/33222

Title: CPUE standardization of striped marlin (Tetrapterus audax) caught by Taiwanese longline fishery in the Indian Ocean for 1980 to 2010
Authors: Sheng-Ping Wang;Tom Nishida
Contributors: 國立臺灣海洋大學:環境生物與漁業科學學系
NTOU:Department of Environmental Biology and Fisheries Science
Date: 2012
Issue Date: 2012-11-20T02:51:43Z
Publisher: The tenth session of the IOTC Working Party on Billfish (WPB), Indian Ocean Tuna Commission (IOTC), September 11-15, Cape Town, South Africa
Abstract: abstract:Since striped marlin are bycatch specie of Taiwanese lognline fleet, large amount of zero catches are recorded from Taiwanese longline fleet. Therefore, this study attempts to the standardize CPUE of striped marlin caught by Taiwanese longline fleet in the Indian Ocean using delta-lognormal GLM model. The results indicate that the area-specific standardized CPUE in the northern Indian Ocean (north of 10°S) reveal different trends with those in the southern Indian Ocean (south of 10°S). Standardized CPUEs in the northern Indian Ocean generally reveal decline trends during 1980s. The standardized CPUEs in the southern Indian Ocean generally reveal increasing
trends during 1980 to 1995 and gradually decreased thereafter. In both of northern and southern Indian Oceans, the standardized CPUEs slightly increased in 2010. Although two CPUE peaks are observed in around 1985 and 1995, the area-aggregated standardized CPUE generally reveals a decline trend since 1980.
Relation: IOTC-2012-WPB10-21
URI: http://ntour.ntou.edu.tw/handle/987654321/33222
Appears in Collections:[環境生物與漁業科學學系] 演講及研討會

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