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梓川・稲核ダム下流域で得たヤマメとイワナの雑種について
https://nagajo-junior-college.repo.nii.ac.jp/records/21
https://nagajo-junior-college.repo.nii.ac.jp/records/210114263f-753f-4aa5-92e7-b32d02a59f07
名前 / ファイル | ライセンス | アクション |
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nagano_wjc-05-02.pdf (1.1 MB)
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Item type | Departmental Bulletin Paper_02(1) | |||||
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公開日 | 2013-02-28 | |||||
タイトル | ||||||
タイトル | 梓川・稲核ダム下流域で得たヤマメとイワナの雑種について | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | On a specimen of a presumable hybrid between Oncorhynchus masou and Salvelinus leucomaenis from the downstream of Inekoki-Dam, Azusagawa River.(In Japanese with English synopsis) | |||||
著者 |
上原, 武則
× 上原, 武則 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | On Oct. 29, 1997, a specimen of salmonid hybrid supposed to be natural occurrence was caught by rod from the downstream of Inekoki-Dam, Azusagawa R., by Takayuki Hirai (a member of investigater with the Sôgô Kankyô Laboratory). The captor was immediately suspected that the present specimen was resembled to Tigertrout. Such a strange hybrid fish, however, isn't able to be classified into the wellknown salmonid species easily. Therefore, he forwarded it to the author for further examination and identification several days after its capture. The specimen, 13.2cm in total length and 26.4g in weight, is immature male having a pair of small testes (left piece is 16mm long, right one is 10), and has dark brown wormeaten spots on the dorsal and lateral surface, but not on the dorsal fin and adipose fin. These colouration and arrangement of spots are differ from those of Tiger-trout, especially Japanese char (iwana) and land-locked cherry-trout (yamame). However, morphological features including the distribution of vomerine teeth, counts of gill rakers, vertebrae and others are intermediate between those of iwana and yamame. On this papers, the author attempted to ascertain the strain of this hybrid fish and discuss about the presumable occurrence in the wild. | |||||
書誌情報 |
長野女子短期大学研究紀要 巻 5, p. 10-15, 発行日 1998-01-30 |
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出版者 | ||||||
出版者 | 長野女子短期大学出版会 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12556157 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |