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首页> 外文期刊>ICES Journal of Marine Science >Loss of regional population structure in Atlantic salmon, Salmo salar L., following stocking
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Loss of regional population structure in Atlantic salmon, Salmo salar L., following stocking

机译：放养后大西洋鲑，萨尔莫萨拉尔湖的区域人口结构损失

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摘要

Many wild Atlantic salmon populations have been stocked with cultured fish during the past century. To evaluate the degree and the direction of the resulting genetic changes in wild southern European populations of Atlantic salmon, the variation at microsatellite loci was examined in historical and modern scale samples from five Spanish and two French rivers. Significant genetic differentiation between neighbouring rivers, which is typical of Atlantic salmon and which existed before stocking, appears to have been lost after only a decade of stocking with fish of foreign origin. Apparent introgression of foreign-origin genes into local gene pools was detected in the populations studied. These results indicate that stocking risks the loss of genetic diversity in wild salmon populations.
机译：在过去的一个世纪中，许多野生大西洋鲑鱼种群都养有养殖鱼。为了评估南欧野生大西洋鲑种群中遗传变异的程度和方向，在来自五个西班牙和两个法国河流的历史和现代规模样本中检查了微卫星基因座的变异。放养外来鱼类仅十年后，相邻河流之间的显着遗传差异就消失了，这是大西洋鲑鱼的典型特征，并且在放养之前就已存在。在研究的群体中检测到外源基因明显渗入本地基因库。这些结果表明，放养有野生鲑鱼种群遗传多样性丧失的风险。

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