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Ciliated protozoans as food for first-feeding larval grouper, Epinephelus septemfasciatus: Laboratory experiment
http://hdl.handle.net/10069/37049
http://hdl.handle.net/10069/37049e24c2bef-02fe-44da-8469-149ebefa042d
名前 / ファイル | ライセンス | アクション |
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PBE47_093.pdf (889.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-02-13 | |||||
タイトル | ||||||
タイトル | Ciliated protozoans as food for first-feeding larval grouper, Epinephelus septemfasciatus: Laboratory experiment | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ciliate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | first-feeding | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | larval grouper | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | rearing | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | survival | |||||
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 | journal article | |||||
著者 |
Nagano, Naoki
× Nagano, Naoki× Iwatsuki, Yukio× Kamiyama, Takashi× Shimizu, Hiroshi× Nakata, Hideaki |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The survival from hatching to day 8 of larval grouper, Epinephelus septemfasciatus, was examined in two rearing experiments. In Experiment 1, the larvae were fed with aloricate ciliates, Euplotes sp. 1 or Euplotes sp. 2, at different concentrations. Significantly higher survival of the larvae was observed in the treatment with the highest density of Euplotes sp. 1 (1.4 x 104 cells l-1) on days 5 and 6 after hatching. Experiment 2 consisted of different prey concentrations of a loricate ciliate, Favella taraikaensis. Significantly higher larval survival was observed in the treatment having the highest density of F. taraikaensis (4.8 x 103 cells l-1) on days 4-6 after hatching. Larval gut content analyses failed to show any ciliates in Experiment 1, whereas hard body parts of F. taraikaensis were detected in Experiment 2. However, feeding on Euplotes by grouper larvae was confirmed by labelling the former with fluorescent microspheres. The lack of ciliate remains in Experiment 1 might be due to complete digestion by the larvae. The present experiments demonstrated that the higher ciliate densities enhanced larval survival until 4-6 days after hatching, suggesting the importance of ciliates as initial food for first-feeding E. septemfasciatus. It is likely that ciliates in the marine ecosys tem may bridge the gap until grouper larvae can encounter foods such as copepod nauplii. |
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書誌情報 |
Plankton Biology and Ecology 巻 47, 号 2, p. 93-99, 発行日 2000-08 |
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出版者 | ||||||
出版者 | Plankton Society of Japan | |||||
出版者別言語 | ||||||
日本プランクトン学会 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13430874 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11166769 | |||||
権利 | ||||||
権利情報 | c The Plankton Society of Japan 2000 | |||||
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 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Plankton Biology and Ecology, 47(2), pp.93-99; 2000 |