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Life history strategy of the chaetognath Sagitta elegans in the World Oceans
https://doi.org/10.15083/00040818
https://doi.org/10.15083/00040818c0170b23-abe1-4e3f-a7ad-babd6b0e8abc
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004098935.pdf (1.1 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-04-05 | |||||
| タイトル | ||||||
| タイトル | Life history strategy of the chaetognath Sagitta elegans in the World Oceans | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | distribution | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | migration | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | breeding | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | life cycle | |||||
| 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 | 10.15083/00040818 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
Terazaki, Makoto
× Terazaki, Makoto |
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| 著者所属 | ||||||
| 値 | International Coastal Research Center, Ocean Research Institute, University of Tokyo | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Sagitta elegans is the best-studied chaetognatha in the world ocean. This species typically inhabits the upper 100 to 150m in the arctic and subarctic area of both the Atlantic and Pacific. S. elegans was also reported from the North Pacific Intermediate Water and the meso- and bathypleagic layer in the Sea of Japan. Diurnal vertical migration is recognized in the various waters. The size and number of grasping spines and teeth of S. elegans in the Sea of Japan are greater than those from the Pacific. They also have developed intestinal tissue containing oil droplets similar to meso- and bathypelagic species. These features are adaptations to the deep-water environment. Number of generations per year, life span and growth rate depend on the waters inhabited. In general, S. elegans mature at large sizes in lower temperatures and life span is short in warm regions. Food is also an important factor controlling their growth. Feeding activity of S. elegans in the various waters of the Pacific is high during the night time. The major food organisms are copepods. S. elegans inhabiting the open sea consume larger copepods compared to those in coastal waters. The percentage of secondary production consumed daily by S. elegans, was 36% in Bedford Basin, Nova Scotia, 10% in the Bering Sea and 4% in the western North Pacific, respectively. | |||||
| 書誌情報 |
Coastal marine science 巻 29, 号 1, p. 1-12, 発行日 2004-04-30 |
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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 | |||||
