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Correspondence between otolith microstructual changes and early life history events in Anguilla marmorata leptocephali and glass eels
https://doi.org/10.15083/00040813
https://doi.org/10.15083/000408136540d5c1-c85f-4d1c-9961-0984506677b9
名前 / ファイル | ライセンス | アクション |
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KJ00004186964.pdf (1.0 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-04-05 | |||||
タイトル | ||||||
タイトル | Correspondence between otolith microstructual changes and early life history events in Anguilla marmorata leptocephali and glass eels | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Anguilla marmorata | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | leptocephalus | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | glass eel | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | otolith | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | metamorphosis | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | daily growth increments | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | Sr : Ca ratios | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | check | |||||
主題Scheme | Other | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/00040813 | |||||
ID登録タイプ | JaLC | |||||
著者 |
Kuroki, Mari
× Kuroki, Mari× Aoyama, Jun× Miller, Micheal J.× Arai, Takaomi× Sugeha, Hagi Yulia× Minagawa, Gen× Wouthuyzen, Sam× Tsukamoto, Katsumi |
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著者所属 | ||||||
著者所属 | Ocean Research Institute, The University of Tokyo | |||||
著者所属 | ||||||
著者所属 | International Coastal Research Center, Ocean Research Institute, The University of Tokyo | |||||
著者所属 | ||||||
著者所属 | Research Center for Oceanography, Indonesian Institute of Sciences | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | To determine the exact correspondence between otolith characteristics and early life history events such as metamorphosis, coastal migration and recruitment to estuaries, both otolith microstructure and microchemistry analyses were applied to a sequential developmental series of samples, e. g. leptocephali, a metamorphosing larva, oceanic glass eels, and coastal glass eels. Total length and age were 10.1-50.7 mm and 22-137 d in leptocephali, 46.3 mm and 147 d in a metamorphosing larva, 47.8, 48.6 mm and 159, 160 d in oceanic glass eels, and 47.9-54.8 mm and 119-168 d in coastal glass eels. Checks at hatching and first feeding were observed in all specimens, but metamorphosis and freshwater checks were observed only in some specimens. It was confirmed that the abrupt drop in otolith Sr : Ca ratios and drastic increases of otolith increment widths in the metamorphosing larval stage correspond to the onset of metamorphosis, and the decrease after the peaks suggested the completion of metamorphosis, because the metamorphosing larva had no decrease in incremental widths. The relatively conserved Sr : Ca ratios decreased sharply in synchrony with the increasing increment widths. This study provides the first direct evidence that these drastic changes in otolith microstructure and microchemistry actually occur during metamorphosis, which has been only hypothesized. | |||||
書誌情報 |
Coastal marine science 巻 29, 号 2, p. 154-161, 発行日 2005-01-31 |
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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 | 452 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | International Coastal Research Center, Ocean Research Institute, the University of Tokyo | |||||
出版者別名 | ||||||
東京大学海洋研究所国際沿岸海洋研究センター |