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Phylogenetic characteristics of selected European huchen (Hucho hucho L.) broodstocks – implication for broodstock management
Oceanological and Hydrobiological Studies ( IF 0.9 ) Pub Date : 2021-03-01 , DOI: 10.2478/oandhs-2021-0005
Marcin Kuciński 1 , Dorota Fopp-Bayat 2
Affiliation  

European huchen ( Hucho hucho ) is a representative of large and rare migratory salmonid fish, which has become endangered due to extensive anthropogenic changes in freshwater ecosystems. Numerous broodstocks of the European huchen have therefore been established throughout the species’ range in recent years to supplement wild fisheries of this species. Unfortunately, this conservation management strategy entails a number of potential ecological and genetic risks associated with the release of farm-raised fish into wild populations. A comprehensive and feasible genetic monitoring protocol for broodstocks maintained for the production of restocking material is therefore essential in the sustainable management of critically endangered fish species. The current paper presents phylogenetic characteristics of four selected huchen broodstocks across Central and Eastern Europe. Genetic comparisons of the studied broodstocks were based on ten microsatellite DNA markers. The effective population size ( Ne ), the individual assignment test, the Principal Coordinates Analysis (PCoA), the allele sharing distance (DAS) and the Bayesian clustering analysis were applied in this study. Moreover, five selected fragments of mitochondrial DNA were used for molecular verification of species membership and genetic purity of examined specimens.

中文翻译:

某些欧洲湖亲(Hucho hucho L.)亲鱼的系统发生特性–对亲鱼管理的意义

欧洲胡氏鱼(Hucho hucho)是大型稀有迁徙鲑鱼的代表,由于淡水生态系统的大量人为变化,该鱼类已濒临灭绝。因此,近年来在整个物种范围内建立了许多欧洲胡氏亲鱼,以补充该物种的野生渔业。不幸的是,这种保护管理策略伴随着将养殖鱼放养到野生种群中而带来的许多潜在的生态和遗传风险。因此,为养护再生产种群所用的亲鱼制定一套全面而可行的遗传监测规程,对于可持续濒危鱼类物种的管理至关重要。本文介绍了中欧和东欧四种精选的胡琴亲鱼的系统发育特征。所研究亲鱼的遗传比较基于十个微卫星DNA标记。在这项研究中,采用了有效人口规模(Ne),个体分配测试,主坐标分析(PCoA),等位基因共享距离(DAS)和贝叶斯聚类分析。此外,线粒体DNA的五个选定的片段用于分子成员身份和所检查的标本的遗传纯度的分子验证。本研究应用等位基因共享距离(DAS)和贝叶斯聚类分析。此外,线粒体DNA的五个选定的片段用于分子成员身份和所检查的标本的遗传纯度的分子验证。本研究应用等位基因共享距离(DAS)和贝叶斯聚类分析。此外,线粒体DNA的五个选定的片段用于分子成员身份和所检查的标本的遗传纯度的分子验证。
更新日期:2021-03-22
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