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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| Authors: | S Kitano † K Hasegawa ‡§ K Maekawa ‡ |
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| Institution: | Nagano Environmental Conservation Research Institute, Nagano 381-0075, Japan; , Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido 060-0809, Japan; and National Research Institute of Fisheries Science, Fisheries Research Agency, Nikko, Tochigi 321-1661, 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. |
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| Keywords: | brown trout Hokkaido Island hybridization mtDNA nuclear DNA white-spotted charr |
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