{"created":"2024-10-03T01:29:45.601022+00:00","id":2010954,"links":{},"metadata":{"_buckets":{"deposit":"674779bc-8ef0-469d-9867-5f051de4c331"},"_deposit":{"created_by":10,"id":"2010954","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2010954"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02010954","sets":["1:8:1724310827352"]},"author_link":["480"],"item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-02","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"6","bibliographicPageEnd":"26","bibliographicPageStart":"21","bibliographicVolumeNumber":"49","bibliographic_titles":[{"bibliographic_title":"水産研究・教育機構研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of  Japan Fisheries Research and Education Agency","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The Seto Inland Sea experienced eutrophication during the period of high economic growth and then subsequent oligotrophication due to reduction of inflow load. The nutrient concentration in the seawater peaked in the beginning of 1970’s, and thereafter, it has been decreasing. Dissolved inorganic nitrogen (DIN) has remarkably decreased in recent years following the decrease in dissolved inorganic phosphorus (DIP). As a result, Nori (Pyropia) production has decreased in recent years due to bleaching of leaves caused by DIN deficiency. Recent slack in fisheries production was also likely influenced by the nutrient depletion as evidenced by the fish catch using a compact trawl. The process of both eutrophication and oligotrophication that occurred in the Seto Inland Sea can be explained by hysteresis. We introduce several countermeasures to the oligotrophication in the Seto Inland Sea. In particular, to improve Nori production, local nutrient supply was experimentally augmented, such as by application of fertilizer, temporary discharge of dam water, sediment plowing, and ad hoc operations of relaxing sewage treatment water.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"水産研究・教育機構","subitem_publisher_language":"ja"},{"subitem_publisher":"Japan Fisheries Research and Education Agency","subitem_publisher_language":"en"}]},"item_10002_relation_11":{"attribute_name":"item_10002_relation_11","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"2758-3953","subitem_relation_type_select":"EISSN"}}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"fra_k_49_21","subitem_relation_type_select":"Local"}}]},"item_10002_source_id_11":{"attribute_name":"item_10002_source_id_11","attribute_value_mlt":[{"subitem_source_identifier":"AA12767505","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"item_10002_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"2432-2830","subitem_source_identifier_type":"PISSN"}]},"item_10002_version_type_20":{"attribute_name":"出版タイプ","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":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Abo, Katsuyuki","creatorNameLang":"en"},{"creatorName":"阿保, 勝之","creatorNameLang":"ja"},{"creatorName":"アボ, カツユキ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Abo","familyNameLang":"en"},{"familyName":"阿保","familyNameLang":"ja"},{"familyName":"アボ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Katsuyuki","givenNameLang":"en"},{"givenName":"勝之","givenNameLang":"ja"},{"givenName":"カツユキ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"480","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"90372036","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=90372036"}]},{"creatorNames":[{"creatorName":"Yamamoto, Tamiji","creatorNameLang":"en","creatorNameType":"Personal"}],"familyNames":[{"familyName":"Yamamoto","familyNameLang":"en"}],"givenNames":[{"givenName":"Tamiji","givenNameLang":"en"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-10-02"}],"filename":"fra_k_49_21.pdf","filesize":[{"value":"401.0 KB"}],"format":"application/pdf","licensetype":"license_0","mimetype":"application/pdf","url":{"url":"https://fra.repo.nii.ac.jp/record/2010954/files/fra_k_49_21.pdf"},"version_id":"989e64a4-b1da-4b68-99c4-e30aa82e0540"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"fisheries production; nutrient; oligotrophication; Seto Inland Sea","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":"item_resource_type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Oligotrophication and its measures in the Seto Inland Sea, Japan","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Oligotrophication and its measures in the Seto Inland Sea, Japan","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1724310827352"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-10-02"},"publish_date":"2024-10-02","publish_status":"0","recid":"2010954","relation_version_is_last":true,"title":["Oligotrophication and its measures in the Seto Inland Sea, Japan"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-03-27T04:16:07.066881+00:00"}