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首页> 外文期刊>Molecular ecology >Two decades of genetic profiling yields first evidence of znatal philopatry and long-term fidelity to parturition zsites in sharks
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Two decades of genetic profiling yields first evidence of znatal philopatry and long-term fidelity to parturition zsites in sharks

机译：二十年的遗传特征分析首次证明了znatal philopatry和对鲨鱼中分娩的zsites的长期保真度

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摘要

Sharks are a globally threatened group of marine fishes that often breed in their natal zregion of origin. There has even been speculation that female sharks return to their zexact birthplace to breed ('natal philopatry'), which would have important conservation zimplications. Genetic profiling of lemon sharks (Negaprion brevirostris) from 20 consecutive zcohorts (1993–2012) at Bimini, Bahamas, showed that certain females faithfully zgave birth at this site for nearly two decades. At least six females born in the 1993– z1997 cohorts returned to give birth 14–17 years later, providing the first direct evidence zof natal philopatry in the chondrichthyans. Long-term fidelity to specific nursery sites zcoupled with natal philopatry highlights the merits of emerging spatial and local zconservation efforts for these threatened predators.
机译：鲨鱼是全球受威胁的海洋鱼类群，通常在其出生的祖国z区域繁殖。甚至有人猜测，雌性鲨鱼会回到其精确的出生地进行繁殖（“天生的传承”），这将具有重要的保护意义。来自巴哈马群岛比米尼的20个连续zcohorts（1993-2012）的柠檬鲨（Negaprion brevirostris）的遗传分析表明，某些雌性在该地点忠实地分娩了近二十年。在1993–1997年队列中出生的至少六名女性在14–17年后返回分娩，这是软骨鱼类首次出生时发生透痛的直接证据。对特定苗圃场所进行长期保真并结合出生后的哲学家，凸显了这些受威胁的天敌对空间和局部z养护工作的新发现。

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