Determining natal origin for improved management of Atlantic bluefin tuna
Determining natal origin for improved management of Atlantic bluefin tuna
复制标题
确定出生起源以改善大西洋蓝鳍金枪鱼的管理
DOI：
10.1002/fee.2090
复制
发表时间：
2019
影响因子：
10.3
通讯作者：
H. Arrizabalaga
中科院分区：
文献类型：
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作者：
N. Rodríguez‐Ezpeleta;Natalia Díaz;John F. Walter;David E Richardson;J. Rooker;Leif Nøttestad;Alex R. Hanke;James S. Franks;S. Deguara;M. Lauretta;N. Rodríguez‐Ezpeleta;Natalia Díaz;Leif Nøttestad;P. Addis;Jose Luis Varela;I. Fraile;N. Goñi;N. Abid;F. Alemany;I. Oray;J. Quattro;F. Sow;T. Itoh;S. Karakulak;P. Pascual;Miguel N. Santos;Y. Tsukahara;M. Lutcavage;J. Fromentin;H. Arrizabalaga
海洋渔业的有效可持续管理要求评估的管理单位（即鱼类种群）与生物种群相对应。这个问题长期以来一直在大西洋蓝鳍金枪鱼（ABFT，Thunnus thynnus）管理的背景下进行讨论，该管理目前考虑两个未混合的种群，但没有考虑在两个主要产卵地（墨西哥湾和地中海）出生的个体如何在整个大西洋的摄食聚集中混合。利用从该物种主要产卵地收集的当年幼虫和幼虫中获得的数千个全基因组分子标记，据我们所知，我们提供了 ABFT 中“出生归巢”的第一个直接遗传证据。这促进了准确、经济高效和非侵入性工具的开发，用于追踪 ABFT 的遗传起源，允许将捕获物分配到其起源种群，这对于确保 ABFT 管理基于具有生物学意义的种群单位而不是简单地基于捕获地点至关重要。
Effective sustainable management of marine fisheries requires that assessed management units (that is, fish stocks) correspond to biological populations. This issue has long been discussed in the context of Atlantic bluefin tuna (ABFT, Thunnus thynnus) management, which currently considers two unmixed stocks but does not take into account how individuals born in each of the two main spawning grounds (Gulf of Mexico and Mediterranean Sea) mix in feeding aggregations throughout the Atlantic Ocean. Using thousands of genome‐wide molecular markers obtained from larvae and young of the year collected at the species’ main spawning grounds, we provide what is, to the best of our knowledge, the first direct genetic evidence for “natal homing” in ABFT. This has facilitated the development of an accurate, cost‐effective, and non‐invasive tool for tracing the genetic origin of ABFT that allows for the assignment of catches to their population of origin, which is crucial for ensuring that ABFT management is based on biologically meaningful stock units rather than simply on catch location.