{"created":"2024-07-25T07:19:32.303113+00:00","id":2010425,"links":{},"metadata":{"_buckets":{"deposit":"05dcbd69-10bd-4629-b81c-9ffef0f674b3"},"_deposit":{"created_by":10,"id":"2010425","owner":"10","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2010425"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02010425","sets":["15","1:6:1721978907743"]},"author_link":[],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2023-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicNumberOfPages":"9","bibliographicPageEnd":"9","bibliographicPageStart":"1","bibliographicVolumeNumber":"72","bibliographic_titles":[{"bibliographic_title":"Journal of National Fisheries University","bibliographic_titleLang":"en"},{"bibliographic_title":"水産大学校研究報告","bibliographic_titleLang":"ja"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We investigated the hemolymph oxygen and acid–base status of Akoya pearl oysters, Pinctada fucata martensii, exposed to hypoxic seawater to elucidate the acid–base balance. Akoya pearl oysters cannulated to the anterior aorta for hemolymph collection from the submerged animals showed oxygen and acid–base disturbance of the hemolymph during environmental hypoxia for 24 h (O2 partial pressure in seawater, Pwo2 8 torr). The hemolymph O2 partial pressure (Po2) decreased from 72.2 torr to 13.6 torr, pH decreased from 7.581 to 7.129, and CO2 partial pressure (Pco2) increased from 0.86 torr to 3.31 torr during hypoxia. The hemolymph total CO2 concentration (Tco2) and bicarbonate ion concentration ([HCO3 – ]) were 1.93–1.95 mM/L and 1.80–1.91 mM/L, respectively, and there was no statistically significant change between pre-hypoxia and hypoxia for 24 h. When normoxic seawater was resumed after the hypoxia, the hemolymph Po2, pH, and Pco2 returned to their initial levels for about 3 h, and hemolymph Tco2 and [HCO3 – ] gradually increased. These results showed that Akoya pearl oysters undergo hypoxemia and respiratory acidosis in the hypoxic environments for 24 h (Pwo2 8 torr). In posthypoxia, most of the disturbances disappeared within 3–24 h, and the increase in hemolymph [HCO3 – ] which was a secondary change compensated for respiratory disturbance.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"アコヤガイPinctada fucata martensii を酸素飽和度約5％の低酸素海水に24 時間曝露すると，前大動脈から採取したヘモリンパ液の酸素分圧は72.2 torr（平均値）から13.6 torr， pH は7.581 から7.129 にまで低下し，二酸化炭素分圧は0.86 torrから3.31 torr に増加した．低酸素海水に曝露したアコヤガイを酸素飽和度約100％の正常海水に戻すと，ヘモリンパ液の酸素分圧，pH，二酸化炭素分圧は3～24 時間以内に曝露前の値にまで回復した。カルシウムイオン濃度は，統計的に有意な変動を示さなかった．これらの結果から，アコヤガイは酸素飽和度約5％の低酸素海水に24 時間曝露されると，低酸素血症と呼吸性アシドーシスを呈することが明らかとなった。酸素飽和度約100％の正常海水にアコヤガイを戻すと，ヘモリンパ液の酸素分圧，pH，二酸化炭素分圧に及ぼす低酸素の影響は24 時間以内に消失することが示された。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.57348/0002010425","subitem_identifier_reg_type":"JaLC"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Japan Fisheries Research and Education Agency","subitem_publisher_language":"en"},{"subitem_publisher":"水産研究・教育機構","subitem_publisher_language":"ja"}]},"item_10002_radio_30":{"attribute_name":"作成者","attribute_value_mlt":[{"subitem_radio_item":["吉"],"subitem_radio_language":"ja"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"fish-u_k_72-1_1","subitem_relation_type_select":"Local"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00124678","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0370-9361","subitem_source_identifier_type":"PISSN"}]},"item_10002_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"半田, 岳志","creatorNameLang":"ja","creatorNameType":"Personal"}],"familyNames":[{"familyName":"半田","familyNameLang":"ja"}],"givenNames":[{"givenName":"岳志","givenNameLang":"ja"}]},{"creatorNames":[{"creatorName":"荒木, 晶","creatorNameLang":"ja"}],"familyNames":[{"familyName":"荒木","familyNameLang":"ja"}],"givenNames":[{"givenName":"晶","givenNameLang":"ja"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"fish-u_k_72-1_1.pdf","format":"application/pdf","mimetype":"application/pdf","url":{"url":"https://fra.repo.nii.ac.jp/record/2010425/files/fish-u_k_72-1_1.pdf"},"version_id":"4f01e010-15f3-4ab9-a8da-e1701bd954f6"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Pinctada fucata martensii; hemolymph acid–base balance; Pco2; CO2 dynamic phase; environmental hypoxia; respiratory physiology","subitem_subject_language":"ja","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":"アコヤガイのヘモリンパ液の酸塩基平衡に及ぼす低酸素の影響","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"アコヤガイのヘモリンパ液の酸塩基平衡に及ぼす低酸素の影響","subitem_title_language":"ja"},{"subitem_title":"Effect of hypoxia on the oxygen and acid–base status of hemolymph in Akoya pearl oyster, Pinctada fucata martensii","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["15","1721978907743"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-07-25"},"publish_date":"2024-07-25","publish_status":"0","recid":"2010425","relation_version_is_last":true,"title":["アコヤガイのヘモリンパ液の酸塩基平衡に及ぼす低酸素の影響"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-04-15T01:40:40.715920+00:00"}