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Hybridization between native white-spotted charr and nonnative brook trout in the upper Sorachi River, Hokkaido, Japan

Kitano, Satoshi; Ohdachi, Satoshi; Koizumi, Itsuro et al.

Ichthyological Research, 2013, 61(1), 1-8

Permalink : https://hdl.handle.net/2115/57808

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論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/57808
タイトル
Hybridization between native white-spotted charr and nonnative brook trout in the upper Sorachi River, Hokkaido, Japan
著者
Kitano, Satoshi ; Ohdachi, Satoshi ; Koizumi, Itsuro ; Hasegawa, Koh
著者名
Kitano, Satoshi
e-Rad_Researcher
60292041
著者名
Ohdachi, Satoshi
e-Rad_Researcher
50572799
著者名
Koizumi, Itsuro
著者名
Hasegawa, Koh
言語
英語
キーワード
Brook trout
White-spotted charr
Invasion
Directional hybridization
発行日
2013
出版者
Springer
収録物名
Ichthyological Research
巻(号)
61(1)
ページ
1-8
抄録
Invasion status and impacts of nonnative brook trout (Salvelinus fontinalis) in a Hokkaido stream were investigated with field surveys and genetic analyses. Nonnative brook trout was detected in nine (41 %) of the 22 sampled reaches in three tributaries of the Sorachi River, Hokkaido, Japan. Based on the external pigmentation, twelve putative hybrids between brook trout and native white-spotted charr (Salvelinus leucomaenis) were collected in two reaches. Microsatellite and mitochondrial DNA data established that 58% of these hybrids were firstgeneration (F1) progenies between male brook trout and female white-spotted charr. Our results suggest potential negative impacts of nonnative brook trout on native charr populations in Hokkaido through interspecific interactions.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
The final publication is available at link.springer.com
PISSN
1341-8998
EISSN
1616-3915
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1007/s10228-013-0362-y