{"created":"2023-05-15T14:44:24.254458+00:00","id":60711,"links":{},"metadata":{"_buckets":{"deposit":"a100078b-67a2-4c06-898a-5e0717a592ae"},"_deposit":{"created_by":1,"id":"60711","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"60711"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00060711","sets":["10:29"]},"author_link":["602108","602105","602109","602104","602107","602106"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2004-11-27","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"淡水の入った水槽に沼の底土、淡水生物（アマモ、シジミ、ヌマエビ、コイ、フナ等）を入れ、水槽上部より人工照明を１日当たり１２時間点灯した。水はポンプにて水槽内を一定方向に循環する様にし、水温は２０度に調節した。この条件で半年間放置した。その間、通気、濾過、給餌は一切しなかったが、水質、生物の状況は良好で、生産・消費・分解のバランスが取れていると判断された。この模擬生態系にRI(Mn-54,Co-57,Sr-85,Ru-103,I-125,Cs-137,Ce-141)を添加し、水、堆積物、生物の放射能を約２ヶ月間追った。\nRI添加後、短時間で水の放射能レベルは低下した。添加後７日目には、Sr-85の約５０％が水に残存したが、他の核種の水中濃度は急激に減少し、減少の大部分は堆積物へ移行した。実験開始後、２ヶ月経過した時点で水の放射能レベルはかなり低くなったが、生物の放射能レベルは高く保持され、堆積物からの放射性核種の供給が大きいことが推察された。","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"第47回大会","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"中原, 元和"}],"nameIdentifiers":[{"nameIdentifier":"602104","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"渡部, 輝久"}],"nameIdentifiers":[{"nameIdentifier":"602105","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松葉, 満江"}],"nameIdentifiers":[{"nameIdentifier":"602106","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中原 元和","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"602107","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"渡部 輝久","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"602108","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松葉 満江","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"602109","nameIdentifierScheme":"WEKO"}]}]},"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":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"模擬生態系における淡水生物の放射性核種蓄積","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"模擬生態系における淡水生物の放射性核種蓄積"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2004-12-01"},"publish_date":"2004-12-01","publish_status":"0","recid":"60711","relation_version_is_last":true,"title":["模擬生態系における淡水生物の放射性核種蓄積"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:50:39.842758+00:00"}