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Low sulfur isotopic signatures (δ^<34>S) of macrozoobenthos from a brackish lagoon: contribution of microbially reduced sulfides
http://hdl.handle.net/10097/41139
http://hdl.handle.net/10097/4113901d72db2-8647-4d7b-b328-73a0d90f3cee
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00005127337.pdf (760.5 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-02-05 | |||||
| タイトル | ||||||
| タイトル | Low sulfur isotopic signatures (δ^<34>S) of macrozoobenthos from a brackish lagoon: contribution of microbially reduced sulfides | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Stable isotope ratio | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Sulfur | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Infaunal animals | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Sulfate-reducing bacteria (SRB) | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Food source | |||||
| 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 | |||||
| 著者 |
KANAYA, Gen
× KANAYA, Gen× NOBATA, Ei× MAKI, Yonosuke× KIKUCHI, Eisuke× MIZOTA, Chitoshi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Stable sulfur isotope ratios (δ^<34>S) of infaunal bivalves (Macoma contabulata, Nuttallia olivacea, and Ruditapes philippinarum) and polychaetes (Hediste spp.; consisted of H. atoka and H. diadroma) collected from two stations in the Gamo Lagoon (Japan) were determined to assess trophic pathways in highly reductive, estuarine soft-bottom habitats. The stations were characterized by distinctive sediment characteristics (Station A, sandy sediment with low sulfide content; Station B, muddy and sulfide-rich sediment). Soft tissues of the consumers exhibited much more depleted δ^<34>S values (+3.2 to +12.1‰) than those of dissolved sulfate in the water column (+20.6 to +20.8‰). The value for each species was 1.6 to 5.3‰ lower at Station B than at Station A. These results suggest the assimilation of sulfides in the sediment (δ^<34>S; -23.2 to -22.7‰) via microbial trophic pathways. In this lagoon, benthic microalgae and/or other microbes in the sediment are the most probable ^<34>S-depleted food source for the consumers. Interspecies variations in δ^<34>S values are explained by the different dietary contribution of the ^<34>S-depleted diets versus ^<34>S-enriched phytoplankton and are closely related to different feeding habits (i.e., surface-deposit feeding, facultative suspension feeding, and obligatory suspension feeding). | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文 | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Article | |||||
| 書誌情報 |
東北アジア研究 en : Northeast Asian studies 号 12, p. 133-142, 発行日 2008-03-25 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1343-9332 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11158374 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 出版者 | ||||||
| 出版者 | 東北大学東北アジア研究センター | |||||
| 出版者 | ||||||
| 出版者 | publisher | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 紀要類 | |||||
| 登録日 | ||||||
| 日付 | 2010-02-05 | |||||
| 日付タイプ | Created | |||||
| 公開日（投稿完了日） | ||||||
| 日付 | 2010-02-05 | |||||
| 日付タイプ | Created | |||||
| 発行日 | ||||||
| 日付 | 2008 | |||||
| 日付タイプ | Created | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 760503 bytes | |||||
| 著者所属 | ||||||
| 値 | Center for Northeast Asian Studies, Tohoku University / Biological Institute, Graduate School of Science, Tohoku University / Faculty of Humanities and Social Sciences, Iwate University / Center for Northeast Asian Studies, Tohoku University / Faculty of Agriculture, Iwate University | |||||
| 更新日 | ||||||
| 日付 | 2010-02-05 | |||||
| 日付タイプ | Created | |||||
