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Trophic relations between animal and non-animal matter in sedements investigated using stable isotopes
https://doi.org/10.15083/00040780
https://doi.org/10.15083/000407809e18484f-3839-4bc2-8e8e-59e542e18e8d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004354611.pdf (649.3 kB)
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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 | Trophic relations between animal and non-animal matter in sedements investigated using stable isotopes | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | stable isotopes | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | organic sediment | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | trophic relations | |||||
| 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 | 10.15083/00040780 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
Matheus, Carvalho De Carvalho
× Matheus, Carvalho De Carvalho× Hayashizaki, Ken-Ichi× Ogawa, Hisao |
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| 著者所属 | ||||||
| 著者所属 | School of Fisheries Sciences, Kitasato University | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Three sets of sediment traps were placed in Otsuchi Bay, Northeast of Japan, one near the shore at 2m depth, two at the center of the bay at 2m and 13m depth each. Collections were made at least once a month, from 2003/12 to 2005/06. dS, dC and dN stable isotope values of the collected material were measured. Some samples contained visible animals, especially near the shore in spring, but animals were caught all year round in all sediment traps. There was a seasonal variation in the results, so the samples were divided into two kinds: samples from spring and summer, and samples from autumn and winter. Samples from the center of the bay at 2m and 13m in depth were very similar, so they were grouped together. In most of the cases, the samples containing animals had dC and dS similar to samples without animals, an indication that they have the same origin, except for samples from the center of the bay, especially in autumn and winter. The dN values of samples containing animals were always higher than those of samples without animals, except for near the shore in autumn and winter, with exceptionally low dN values for samples containing animals. It was assumed that the sedimentary organic matter reflected the isotopic composition of particulate organic matter (POM), and it was hypothesized that a great portion of the POM from near the shore might have been the main food source of the animals. If so, at the center of the bay, especially in autumn and winter, edible food was scarce, and the animals would be there for other reasons that not foraging. If the analyzed animals can be thought as representative of the primary consumers of the water column in the bay, then a part of POM would not enter the pelagic food chain. | |||||
| 書誌情報 |
Coastal marine science 巻 30, 号 1, p. 233-237, 発行日 2006-04-28 |
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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 | ||||||
| 東京大学海洋研究所国際沿岸海洋研究センター | ||||||
