期刊
CONSERVATION GENETICS
卷 11, 期 5, 页码 2049-2053出版社
SPRINGER
DOI: 10.1007/s10592-009-0041-8
关键词
Exotic species; Lake trout; Invasion; Bottleneck
资金
- Montana Fish Wildlife and Parks
- National Science Foundation [DEB 0717456]
Non-native species of fish threaten native fishes throughout North America, and in the Rocky Mountains, introduced populations of lake trout threaten native populations of bull trout. Effective management of lake trout and other exotic species require understanding the dynamics of invasion in order to either suppress non-native populations or to prevent their spread. In this study, we used microsatellite genetic data to estimate the number of lake trout that invaded a population of bull trout in Swan Lake, MT. Examination of genetic diversity and allele frequencies within the Swan Lake populations showed that most of the genes in the lake trout population are descended from two founders. This emphasizes the importance of preventing even a few lake trout from colonizing new territory.
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