National Taiwan Ocean University Institutional Repository:Item 987654321/39937
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题名: Sex-structured population dynamics of blue marlin Makaira nigricans in the Pacific Ocean.
作者: Hui-Hua Lee;Kevin R. Piner;Michael G. Hinton;Yi-Jay Chang;Ai Kimoto;Minoru Kanaiwa;Nan-Jay Su;William Walsh;Chi-Lu Sun;Gerard DiNardo
贡献者: 國立臺灣海洋大學:環境生物與漁業科學學系
关键词: Sexual dimorphism;Sex structure;Age structure;Selectivity;Pacific Ocean;Blue marlin
日期: 2014-09
上传时间: 2017-01-10T01:28:30Z
出版者: Fisheries Science
摘要: Abstract:The population dynamics of the blue marlin Makaira nigricans stock in the Pacific Ocean were estimated for 1971–2011 using a fully integrated length-based, age-, and sex-structured model. Fishery-specific catch, size composition, and catch-per-unit of effort were used in the modeling as likelihood components. Estimated dynamics were consistent with a stock that is fully exploited and stable over the last several years. No significant trends in recruitment were noted; however, female blue marlin were estimated to make up a majority of the catch, and historical exploitation has disproportionately changed the age structure of females relative to males. This result is due to differences in assumed life history and estimated selectivity. Changes to important life history parameters that are responsible for the productivity of the stock would potentially change the interpretation of current stock status.
關聯: 80(5), pp.869-878
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39937
显示于类别:[環境生物與漁業科學學系] 期刊論文

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