The almaco jack Seriola rivoliana is a circumtropical pelagic fish of importance both in commercial fisheries and aquaculture. To understand levels of genetic diversity within and among populations in the wild, population genetic structure and the relative magnitude of migration were assessed with mtDNA sequence data and SNPs from individuals sampled from locations in the Pacific and Atlantic Oceans. A total of 25 variable sites of COI and 3,678 neutral SNPs were recovered. Three genetic groups were identified with both marker types distributed in different oceanic regions: Pacific-1 in central Pacific, Pacific-2 in eastern Pacific and Atlantic in western Atlantic. However, analysis of SNP identified a fourth population in Pacific coast of Baja California Sur, Mexico (Pacific-3), while mtDNA did not. This mito-nuclear discordance is likely explained by a recently diverged Pacific-3 population. In addition, two mtDNA haplogroups were found within the western Atlantic, likely indicating that the species came into the Atlantic from the Indian with historical gene flow from the eastern Pacific. Relative gene flow among ocean basins was low with r m < 0.2, while in the eastern Pacific was asymmetric, and higher from south to north (r m > 0.79). The results reflect the importance of assessing genetic structure and gene flow of natural populations for the purposes of sustainable management. This article is protected by copyright. All rights reserved.

中文翻译：

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环热带almaco jack Seriola rivoliana的遗传多样性和结构：保护和管理工具。

almaco jack Seriola rivoliana 是一种在商业渔业和水产养殖中都很重要的环热带远洋鱼类。为了了解野生种群内部和种群之间的遗传多样性水平，使用从太平洋和大西洋地区采样的个体的 mtDNA 序列数据和 SNP 评估了种群遗传结构和迁移的相对幅度。总共回收了 25 个 COI 可变位点和 3,678 个中性 SNP。确定了三个遗传组，两种标记类型分布在不同的海洋区域：太平洋中部的 Pacific-1、东太平洋的 Pacific-2 和西大西洋的大西洋。然而，对 SNP 的分析在墨西哥南下加利福尼亚 (Pacific-3) 的太平洋海岸发现了第四个种群，而 mtDNA 则没有。这种线粒体核不一致可能是由最近出现分歧的 Pacific-3 种群来解释的。此外，在西大西洋发现了两个 mtDNA 单倍群，这可能表明该物种从印度人进入大西洋，历史基因来自东太平洋。大洋盆地之间的相对基因流较低，rm < 0.2，而东太平洋不对称，从南到北较高（rm > 0.79）。结果反映了评估自然种群的遗传结构和基因流以实现可持续管理的重要性。本文受版权保护。版权所有。这可能表明该物种从印度人进入大西洋，历史基因来自东太平洋。大洋盆地之间的相对基因流较低，rm < 0.2，而东太平洋不对称，从南到北较高（rm > 0.79）。结果反映了评估自然种群的遗传结构和基因流以实现可持续管理的重要性。本文受版权保护。版权所有。这可能表明该物种从印度人进入大西洋，历史基因来自东太平洋。大洋盆地之间的相对基因流较低，rm < 0.2，而东太平洋不对称，从南到北较高（rm > 0.79）。结果反映了评估自然种群的遗传结构和基因流动以实现可持续管理的重要性。本文受版权保护。版权所有。本文受版权保护。版权所有。本文受版权保护。版权所有。