{"created":"2024-06-18T03:48:18.251571+00:00","id":2007588,"links":{},"metadata":{"_buckets":{"deposit":"81e87341-3378-4cdd-9ead-60646c6df79b"},"_deposit":{"created_by":10,"id":"2007588","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2007588"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02007588","sets":["12:14:1716955633551"]},"author_link":[],"control_number":"2007588","item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1987-12","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"4","bibliographicPageEnd":"96","bibliographicPageStart":"93","bibliographicVolumeNumber":"12","bibliographic_titles":[{"bibliographic_title":"養殖研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of National Research Institute of Aquaculture","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Female amago salmon, Oncorhynchus rhodurus, normally mature in the second year, spawn in autumn and die thereafter. The present study is the first report which have showed high incidence (about 32%) of precocious maturity of female of yearling amago salmon. These adult female (33.2~142.4 g in body weight) spawned 110~635 eggs per fish. They were smoller in size (3.47~4.45 mm) and weight (23~48 mg/egg) when compared with those spawned by two-year-old fish. The maturation was probably accelerated by the unusual change in water temperature from 12℃ (summer) to 17°C (winter) in the pond and the early feeding which started as soon as flies showed eating activities while they were laid down with yolk-sacs on the bottom of the aquarium.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"養殖研究所","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":"nria_k_12_93","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_language":"ja","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/2010391102","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"item_10002_source_id_11","attribute_value_mlt":[{"subitem_source_identifier":"AN00245945","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"item_10002_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"0389-5858","subitem_source_identifier_type":"PISSN"}]},"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":"新間, 脩子","creatorNameLang":"ja"}],"familyNames":[{"familyName":"新間","familyNameLang":"ja"}],"givenNames":[{"givenName":"脩子","givenNameLang":"ja"}]},{"creatorNames":[{"creatorName":"北村, 弘子","creatorNameLang":"ja"}],"familyNames":[{"familyName":"北村","familyNameLang":"ja"}],"givenNames":[{"givenName":"弘子","givenNameLang":"ja"}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Amago salmon; Oncorhynchus rhodurus; maturation; yearling fish; precocious maturity","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":"item_resource_type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"アマゴ当才魚の成熟と産卵","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"アマゴ当才魚の成熟と産卵","subitem_title_language":"ja"},{"subitem_title":"Maturation of Female Yearling of Amago Salmon Oncorhynchus rhodurus and Acquisition of Fertilized Eggs","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716955633551"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-06-18"},"publish_date":"2024-06-18","publish_status":"0","recid":"2007588","relation_version_is_last":true,"title":["アマゴ当才魚の成熟と産卵"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-04-01T08:43:03.894991+00:00"}