{"created":"2024-10-03T01:25:31.879668+00:00","id":2010905,"links":{},"metadata":{"_buckets":{"deposit":"77c41984-86de-43cc-8f9b-92845c756898"},"_deposit":{"created_by":10,"id":"2010905","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2010905"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02010905","sets":["1:8:1724310832885"]},"author_link":["593"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2011-01","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"15","bibliographicPageEnd":"47","bibliographicPageStart":"33","bibliographicVolumeNumber":"34","bibliographic_titles":[{"bibliographic_title":"水産総合研究センター研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of  Fisheries Research Agency","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The manila clam, Ruditapes philippinarum, is widely distributed all over Japan and the most common and commercially important shellfish in the country. The Fisheries production of Manila clam in Suo-Nada, which amounts to more than 90% of the total clam production in the Seto Inland Sea in mid-1980s. Maximum fisheries production of the clam in Suo-Nada was 41883 metric ton in 1986. However, the census shows a rapid decrease in fisheries production of the clam since 1990 and its was less than 100 metric ton in recent years. During the course of the research on the possible reasons for the deterioration of production, we noticed lots of reasons as follows; 1) the marine environmental conditions have gradually changed since mid-1980s with global climate changes. 2) Nutrient level of the Seto Inland Sea has gradually decreased by tighter regulation of total emission of nutrient salts. 3) Overexploitation of the natural resources of the clam has rose in demand by crash of other local population. In this review, I summarized and reanalyzed the relationship among the primary production, marine environment and fisheries production of the clam in the Seto Inland Sea. In the results, water temperature in winter was gradually increased since mid 1980s, and the fisheries production of the clam was inversely related to water temperature in winter. Similarly, nitrogen levels was gradually decreased since mid 1980s, and the fisheries production of the clam was related to concentration of the inorganic nitrogen in summer. The fact shows that one of the possible reasons for the deterioration of the clam production would cause by changes in marine environmental conditions．","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"水産総合研究センター","subitem_publisher_language":"ja"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"fra_k_34_33","subitem_relation_type_select":"Local"}}]},"item_10002_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"日本農学文献記事索引（AgriKnowledge）"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://agriknowledge.affrc.go.jp/RN/2010811349","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11589591","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1346-9894","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":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Hamaguchi, Masami","creatorNameLang":"en"},{"creatorName":"浜口, 昌巳","creatorNameLang":"ja"},{"creatorName":"ハマグチ, マサミ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Hamaguchi","familyNameLang":"en"},{"familyName":"浜口","familyNameLang":"ja"},{"familyName":"ハマグチ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Masami","givenNameLang":"en"},{"givenName":"昌巳","givenNameLang":"ja"},{"givenName":"マサミ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"593","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"60371960","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=60371960"}]}]},"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_34_33.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_0","mimetype":"application/pdf","url":{"url":"https://fra.repo.nii.ac.jp/record/2010905/files/fra_k_34_33.pdf"},"version_id":"1794cc56-f6a9-4187-a89a-e74e16aeb832"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"manila clam; marine environmental condition; Suo-Nada","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":"一次生産の変化と有用種の関係(二枚貝)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"一次生産の変化と有用種の関係(二枚貝)","subitem_title_language":"ja"},{"subitem_title":"Relationship among primary production, marine environment and fisheries production of bivalves in the Seto Inland Sea","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1724310832885"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-10-02"},"publish_date":"2024-10-02","publish_status":"0","recid":"2010905","relation_version_is_last":true,"title":["一次生産の変化と有用種の関係(二枚貝)"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-03-27T06:14:50.237540+00:00"}