The history of brown trout Salmo trutta L. stocking has long tradition in the European Union and other countries. Hundreds of hatchery facilities on continent have artificial broodstocks used for enhancement of neighbouring and also geographically far river basins. These practices have substantial effect on wild brown trout populations. To illuminate this phenomenon, eleven hatchery stocks and wild populations from northern Poland and Carpathian region were analysed using 13 microsatellite markers. Obtained results revealed high genetic diversity between studied stocks and clear differentiation between northern and southern populations and hybridization between these two major clads. As a recommendation, the principle of treating regions as metapopulations should be applied, which, in the case of Poland, means using the division of the northern and southern genetic lines that were revealed in the present study.

中文翻译：

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重要居民褐鳟繁殖线的遗传结构在波兰。

褐鳟鱼的历史褐鳟L.库存在欧洲联盟和其他国家/地区具有悠久的传统。大陆上的数百个孵化场设施都使用人工亲鱼来增强邻国和地理上较远的流域。这些做法对野生鳟鱼种群有重大影响。为了阐明这一现象，使用13种微卫星标记对来自波兰北部和喀尔巴阡地区的11个孵化场种群和野生种群进行了分析。获得的结果表明，研究种群之间的遗传多样性高，北部和南部种群之间的明显区分以及这两个主要群体之间的杂交。作为建议，应适用将地区视为人口众多的原则，在波兰的情况下，