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Previous study using carbon and nitrogen isotopes suggests that the bivalve nonselectively assimilates particulate organic matter of marine and terrestrial origin by filter feeding. This pattern in δ34S values may indicate a considerable contribution of a food source derived from terrigenous organic matter, which has low δ34S values close to 0‰, and the bivalve has been reported to have cellulase and hemicellulase activities. Unique fatty acids (iso 17:0 and anteiso 17:0 acids), both characteristic of sulfate-reducing bacteria, were observed in the salt-free, soft-body parts of the bivalve. The concentration of monounsaturated fatty acids, possibly derived from bacteria, was also high. Trace amounts of a polyunsaturated fatty acid (20:5ω3) specific to dinoflagellates were detected. In Corbicula habitats, reductive sandy layers with ample sulfides that were sporadically intercalated into the oxidative sandy sediment were often observed. The stable isotopic signatures of sediment sulfides (acid-volatile sulfide) and associated pore-water sulfates were −8.9 to +8.6‰ and +22.4 to +26.3‰, respectively, indicating the existence of bacterial sulfate-reducing activity and thiobios biomass. These isotopic signatures of the sediment, with the fatty acid composition of the bivalve, confirm the importance of a food source derived from bacteria belonging to the thiobios in the substrate sediments via pedal feeding, rather than direct digestion of terrigenous organic matter, in this estuarine ecosystem.", "subitem_description_type": "Abstract"}]}, "item_10001_heading_23": {"attribute_name": "見出し", "attribute_value_mlt": [{"subitem_heading_banner_headline": "共通教育センター", "subitem_heading_headline": "生物", "subitem_heading_language": "ja"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1016/j.ecss.2013.04.011", "subitem_relation_type_select": "DOI"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0272-7714", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", 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"subitem_subject_scheme": "Other"}, {"subitem_subject": "Kitakami River", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "northeastern Japan", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Assimilation of terrigenous organic matter via bacterial biomass as a food source for a brackish clam, Corbicula japonica (Mollusca: Bivalva)", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Assimilation of terrigenous organic matter via bacterial biomass as a food source for a brackish clam, Corbicula japonica (Mollusca: Bivalva)"}, {"subitem_title": "Assimilation of terrigenous organic matter via bacterial biomass as a food source for a brackish clam, Corbicula japonica (Mollusca: Bivalva)", "subitem_title_language": "en"}]}, "item_type_id": "10001", "owner": "5", "path": ["79", "149", "577"], "permalink_uri": "https://iwatemed.repo.nii.ac.jp/records/2612", "pubdate": {"attribute_name": "公開日", "attribute_value": "2013-12-24"}, "publish_date": "2013-12-24", "publish_status": "0", "recid": "2612", "relation": {}, "relation_version_is_last": true, "title": ["Assimilation of terrigenous organic matter via bacterial biomass as a food source for a brackish clam, Corbicula japonica (Mollusca: Bivalva)"], "weko_shared_id": 5}
Assimilation of terrigenous organic matter via bacterial biomass as a food source for a brackish clam, Corbicula japonica (Mollusca: Bivalva)
https://iwatemed.repo.nii.ac.jp/records/2612
https://iwatemed.repo.nii.ac.jp/records/2612a0424768-b379-4919-bc61-a47681b08fd0
名前 / ファイル | ライセンス | アクション |
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本文 (553.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2013-12-24 | |||||
タイトル | ||||||
タイトル | Assimilation of terrigenous organic matter via bacterial biomass as a food source for a brackish clam, Corbicula japonica (Mollusca: Bivalva) | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Assimilation of terrigenous organic matter via bacterial biomass as a food source for a brackish clam, Corbicula japonica (Mollusca: Bivalva) | |||||
言語 | ||||||
言語 | eng | |||||
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 |
Yamanaka, Toshiro
× Yamanaka, Toshiro× Mizota, Chitoshi× Maki, Yonosuke× Matsumasa, Masatoshi× Yamanaka, Toshiro× Mizota, Chitoshi× Maki, Yonosuke× Matsumasa, Masatoshi |
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書誌情報 |
Estuarine, Coastal and Shelf Science en : Estuarine, Coastal and Shelf Science 巻 126, p. 87-92, 発行日 2013-07-10 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0272-7714 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.ecss.2013.04.011 | |||||
見出し | ||||||
大見出し | 共通教育センター | |||||
小見出し | 生物 | |||||
言語 | ja |