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FEEDING HABITS OF PACIFIC COD, GADUS MACROCEPHALUS, OFF EASTERN HOKKAIDO, NORTH JAPAN (14th Symposium on Polar Biology)
https://doi.org/10.15094/00005184
https://doi.org/10.15094/000051849b060814-766e-4552-97de-e75a58810d77
名前 / ファイル | ライセンス | アクション |
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KJ00001983675 (1.4 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1993-01-01 | |||||
タイトル | ||||||
タイトル | FEEDING HABITS OF PACIFIC COD, GADUS MACROCEPHALUS, OFF EASTERN HOKKAIDO, NORTH JAPAN (14th Symposium on Polar Biology) | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
ID登録 | ||||||
ID登録 | 10.15094/00005184 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
記事種別(英) | ||||||
en | ||||||
Proceeding | ||||||
論文名よみ | ||||||
その他のタイトル | FEEDING HABITS OF PACIFIC COD, GADUS MACROCEPHALUS, OFF EASTERN HOKKAIDO, NORTH JAPAN (14th Symposium on Polar Biology) | |||||
著者名よみ |
ヤマムラ, オリオ
× ヤマムラ, オリオ× ワタナベ, カズトシ× シマザキ, ケンジ |
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著者名(英) |
YAMAMURA, Orio
× YAMAMURA, Orio× WATANABE, Kazutoshi× SHIMAZAKI, Kenji |
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著者所属(英) | ||||||
en | ||||||
Research Institute of North Pacific Fisheries, Faculty of Fisheries, Hokkaido University | ||||||
著者所属(英) | ||||||
en | ||||||
Hokkaido National Fisheries Research Institute | ||||||
著者所属(英) | ||||||
en | ||||||
Research Institute of North Pacific Fisheries, Faculty of Fisheries, Hokkaido University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We collected a total of 336 specimens of Pacific cod, Gadus macrocephalus during April, May and June 1989-1992 off the eastern coast of Hokkaido. Examination of their stomach contents revealed that fishes (mainly walleye pollock, Theragra chalcogrammd) and decapod crustaceans (mainly crangonid shrimps) were major diet. The cod showed an obvious body size related dietary shift; the importance of shrimps (Neocrangon communis and Argis lar) and myctophid fishes for ≤300 mm individuals switched abruptly to walleye pollock and other fishes (e.g. Sardinops melanostictus, Laemonema longipes, stichaeid and cottid fishes) and octopus, Paroctopus spp. for larger individuals. The cod showed an obvious feeding periodicity with a peak of feeding during 0600-1200 h. The comparison of prey size and prey type (benthos and nekton) for different size classes of predators indicated that the cod diet is determined by predator-prey size relationship. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10819561 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Polar Biology 巻 6, p. 44-54, 発行日 1993-01 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |