The genetic structure of the gadiform fish species, burbot Lota lota L., was investigated across Germany to derive management options for facilitating the preservation of genetic diversity. Sequence analysis of the mitochondrial control region (n = 244) and microsatellite analysis (n = 861) of specimens from 20 sites revealed genetic structuring between major river basins, and particularly between lake and river habitats. The admixture zone between the Eurasian and West European phylogenetic clades in Lake Constance was confirmed and expanded to include the drainage basins of the rivers Rhine and Schlei/Trave. Haplotype distribution and private haplotypes in single river basins indicated population differentiation and imply that German burbot constituted an important part of the entire species' diversity. The derived genetic structuring has implications for future stocking programmes and the preservation of the adaptive potential of burbot, a guiding species for oligotrophic lakes in Europe.

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德国江豚的遗传多样性和种群结构：对保护和管理的影响

在德国各地调查了河豚鱼的遗传结构，以得出促进遗传多样性保护的管理方案。线粒体控制区的序列分析（n = 244）和来自 20 个地点的标本的微卫星分析（n = 861）揭示了主要河流流域之间的遗传结构，特别是湖泊和河流栖息地之间的遗传结构。康斯坦茨湖中欧亚和西欧系统发育进化枝之间的混合区被确认并扩大到包括莱茵河和施莱/特拉韦河的流域。单个流域中的单倍型分布和私人单倍型表明种群分化，并暗示德国江豚构成了整个物种多样性的重要组成部分。