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题名: Population Genetic Structure of the Swordfish, Xiphias gladius (Linnaeus, 1758), in the Indian Ocean and West Pacific Inferred from the Complete DNA Sequence of the Mitochondrial Control Region
作者: Ching-Ping Lu
Allen Chao-Lun Chen
Cho-Fat Hui
Tzong-Der Tzeng
Shean-Ya Yeh
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: Swordfish
Population genetic structure
Mitochondrial control region
Fishery management
Indian Ocean
日期: 2006-04
上传时间: 2018-09-17T02:35:42Z
出版者: Zoological Studies
摘要: Abstract: The population genetic structure of the swordfish, Xiphias gladius, was studied using tissue samples collected from the Indian Ocean and West Pacific between 1999 and 2003 by Taiwanese longliners. In total, 175 individuals comprising 9 sampled units (2 units from the Pacific Ocean and 7 from the Indian Ocean) were surveyed using the complete DNA sequence of the mitochondrial control region (841 bp in length), which yielded a total of 142 haplotypes with a mean haplotypic diversity (h) of 0.9967 and nucleotide diversity of (π) of 0.01476 ± 0.00046. Significant population subdivisions detected by F-statistics (Fst) and analysis of molecular variance (AMOVA) indicated that samples drawn from the waters off northern Madagascar and the Bay of Bengal were 2 distinct groups compared to the other populations from the Indian Ocean and West Pacific. In concordance with previous studies indicating the worldwide swordfish population's genetic structure, our study further suggests that the stock structure of swordfish in the Indo-Pacific region can be summarized into the following groups: an area off northern Madagascar, the Bay of Bengal, and the rest of the Indian Ocean and western Pacific, thus providing important information for management units of swordfish fisheries in the Indo-Pacific region.
關聯: 45(2) P269 - 279
显示于类别:[環境生物與漁業科學學系] 期刊論文


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