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Evidence for interspecific hybridization between native white-spotted charr Salvelinus leucomaenis and non-native brown trout Salmo trutta on Hokkaido Island, Japan

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Abstract:

Hybrids between native white-spotted charr Salvelinus leucomaenis and non-native brown trout Salmo trutta were identified in streams of Hokkaido, Japan, using both appearance and genetic characters. The DNA analyses indicated that the specimens were hybrids between female S. leucomaenis and male S. trutta. Occurrence of such hybrids implies increased mating opportunities between these species in wild streams.

Keywords: Hokkaido Island; brown trout; hybridization; mtDNA; nuclear DNA; white-spotted charr

Document Type: Research Article

DOI: https://doi.org/10.1111/j.1095-8649.2008.02095.x

Affiliations: Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido 060-0809, Japan

Publication date: 2009-02-01

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