{"created":"2023-06-19T07:30:50.397289+00:00","id":899,"links":{},"metadata":{"_buckets":{"deposit":"b2ae0594-1840-4f49-80ec-02669b57c00b"},"_deposit":{"created_by":3,"id":"899","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"899"},"status":"published"},"_oai":{"id":"oai:nodai.repo.nii.ac.jp:00000899","sets":["47:48:194:197"]},"author_link":["4459","4461","4462","4460"],"item_1_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-12-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"57","bibliographicPageStart":"51","bibliographicVolumeNumber":"66","bibliographic_titles":[{}]}]},"item_1_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"農業生産は肥料等に由来する窒素やリンの環境への放出をもたらす等，地域の自然環境に大きな影響を与えており，その影響は水域で顕在化しやすい。本研究は代表的な農地由来物質である窒素化合物の亜硝酸及び硝酸に対するヤマトシジミの耐性を実験的に明らかにすることを目的とした。本研究で得られた亜硝酸及び硝酸の半数致死濃度（以下LC50）は，亜硝酸が597.7（443.0-752.4） mg/L, 硝酸が3481.0（2488.8-4473.3） mg/Lだった。これらの濃度は他の水生生物と比較して高く，ヤマトシジミが亜硝酸及び硝酸に高い耐性を有していることが明らかとなった。亜硝酸や硝酸の主な毒性は，酸素運搬色素を変化させて酸素運搬障害を引き起こすことと考えられている。ヤマトシジミは高い貧酸素耐性を有している。したがって，高濃度の亜硝酸・硝酸条件下において酸素運搬障害が起こったとしても他の水生生物より長期間生存できる可能性がある。本研究で得られたヤマトシジミの亜硝酸及び硝酸のLC50は，野外環境において通常観測される濃度より約5000倍以上高いことから，これらのヤマトシジミへのリスクは低いと考えられた。","subitem_description_type":"Other"}]},"item_1_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"Agricultural production has greatly affected the local environment through the release of nitrogen, phosphorus and heavy metals such as Zn, Mn by fertilizer.  This becomes obvious in water areas.  The purpose of this study is experimentally to clarify the tolerance of brackish water bivalve, Corbicula japonica, to nitrate and nitrite which is the main nitrogen from agricultural land.  LC50 of nitrite and nitrate was 607.4 mg/L and 3481.1 mg/L, respectively.  These concentrations are higher than other aquatic organisms.  Toxicity of nitrite and nitrate is thought to be the change in oxygen-carrying pigments, which causes oxygen-carrying disorders.  Due to its high tolerance to anoxia, C. japonica may survive longer than other aquatic organisms even under high concentrations of nitrite and nitrate.  LC50 of C. japonica to nitrite and nitrate are about five thousand times as high as the normal concentration of the environment, so that the risk may be negligible.","subitem_description_type":"Other"}]},"item_1_description_13":{"attribute_name":"レポート・講演番号","attribute_value_mlt":[{"subitem_description":"E","subitem_description_type":"Other"}]},"item_1_description_15":{"attribute_name":"表示順","attribute_value_mlt":[{"subitem_description":"1","subitem_description_type":"Other"}]},"item_1_description_2":{"attribute_name":"ページ属性","attribute_value_mlt":[{"subitem_description":"P","subitem_description_type":"Other"}]},"item_1_description_8":{"attribute_name":"記事種別(日)","attribute_value_mlt":[{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_1_description_9":{"attribute_name":"記事種別(英)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_1_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00164184","subitem_source_identifier_type":"NCID"}]},"item_1_text_6":{"attribute_name":"著者所属(日)","attribute_value_mlt":[{"subitem_text_value":"東京農業大学大学院生物産業学研究科アクアバイオ学専攻"},{"subitem_text_value":"東京農業大学生物産業学部海洋水産学科"}]},"item_1_text_7":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of Aquatic Bioscience, Graduate school of Bioindustry, Tokyo University of Agriculture"},{"subitem_text_language":"en","subitem_text_value":"Department of Ocean and Fisheries Sciences, Faculty of Bioindustry, Tokyo University of Agriculture"}]},"item_1_title_3":{"attribute_name":"論文名よみ","attribute_value_mlt":[{"subitem_title":"キスイセイ　ニマイガイ　ヤマトシジミ　ノ　アショウサン　オヨビ　ショウサンタイセイ"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"松田, 烈至"},{"creatorName":"マツダ, レツシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"4459","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"園田, 武"},{"creatorName":"ソノダ, タケシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"4460","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Matsuda, Retsush","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"4461","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sonoda, Takeshi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"4462","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-01-07"}],"displaytype":"detail","filename":"66_51.pdf","filesize":[{"value":"1.7 MB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"66_51","url":"https://nodai.repo.nii.ac.jp/record/899/files/66_51.pdf"},"version_id":"cba9ec8a-3bda-4711-ad19-0c23ffb7fcdb"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"ヤマトシジミ","subitem_subject_scheme":"Other"},{"subitem_subject":"流域由来物質","subitem_subject_scheme":"Other"},{"subitem_subject":"耐性実験","subitem_subject_scheme":"Other"},{"subitem_subject":"亜硝酸","subitem_subject_scheme":"Other"},{"subitem_subject":"硝酸","subitem_subject_scheme":"Other"},{"subitem_subject":"Corbicula japonica","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Basin-derived substances","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Tolerance experiment","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Nitrate","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Nitrite","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"汽水性二枚貝ヤマトシジミの亜硝酸及び硝酸耐性","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"汽水性二枚貝ヤマトシジミの亜硝酸及び硝酸耐性"},{"subitem_title":"Tolerance of Brackish Water Bivalve, Corbicula japonica, to Nitrite and Nitrate","subitem_title_language":"en"}]},"item_type_id":"1","owner":"3","path":["197"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-01-07"},"publish_date":"2022-01-07","publish_status":"0","recid":"899","relation_version_is_last":true,"title":["汽水性二枚貝ヤマトシジミの亜硝酸及び硝酸耐性"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-19T07:40:12.436206+00:00"}