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Chaetognaths in the diet of Pacific saury (Cololabis saira) in the northwestern Pacific Ocean
https://doi.org/10.15083/00040712
https://doi.org/10.15083/000407125c06520a-3521-41c2-8239-d88563dc7d8e
名前 / ファイル | ライセンス | アクション |
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CMS320106.pdf (234.8 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-02-18 | |||||
タイトル | ||||||
タイトル | Chaetognaths in the diet of Pacific saury (Cololabis saira) in the northwestern Pacific Ocean | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Pacific saury | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Chaetognaths | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Oyashio, Kuroshio | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | feeding | |||||
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 | 10.15083/00040712 | |||||
ID登録タイプ | JaLC | |||||
著者 |
JOHNSON, Travis B.
× JOHNSON, Travis B.× NAKAGAMI, Masayasu× UENO, Yasushiro× NARIMATSU, Yoji× SUYAMA, Satoshi× KURITA, Yutaka× SUGISAKI, Hiroya× TERAZAKI, Makoto |
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著者所属 | ||||||
値 | Ocean Research Institute, University of Tokyo | |||||
著者所属 | ||||||
値 | Tohoku National Fisheries Research Institute-Hachinohe Branch | |||||
著者所属 | ||||||
値 | Tohoku National Fisheries Research Institute | |||||
著者所属 | ||||||
値 | National Research Institute of Fisheries Science, Fisheries Research Agency | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The feeding of Pacific saury (Cololabis saira) on chaetognaths was investigated off the east coast of Japan. 58.1% of the saury examined contained chaetognath remains. Most saury contained only a couple of chaetognaths, but about one-third of the saury had over 100 in their gut-suggesting encounters with chaetognath swarms. The chaetognath Sagitta elegans was commonly ingested, and the mean calculated length of S. elegans ingested by saury was significantly larger than the mean length of S. elegans collected by net from the water, indicating selectivity of larger prey sizes by saury. Sagitta elegans ingested at the Oyashio region feeding grounds in July were significantly larger than those ingested in the mixed/transition water off Sanriku in November. Correlation analysis of saury size versus ingested S. elegans size suggests that saury at the Oyashio feeding grounds in July do not eat S. elegans of lengths directly proportional to the saury’s length. But, saury do seem to select S. elegans directly proportional to their own body length in the region of the Subarctic Front. Though size of saury and S. elegans affects predatorprey interactions, additional unknown factors are also recognized as being influential. | |||||
書誌情報 |
Coastal marine science 巻 32, 号 1, p. 39-47, 発行日 2008-08-20 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13493000 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11957899 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
日本十進分類法 | ||||||
主題Scheme | NDC | |||||
主題 | 452 | |||||
出版者 | ||||||
出版者 | International Coastal Research Center, Ocean Research Institute, the University of Tokyo | |||||
出版者別名 | ||||||
値 | 東京大学海洋研究所国際沿岸海洋研究センター |