{"created":"2024-08-06T09:07:20.598160+00:00","id":2010577,"links":{},"metadata":{"_buckets":{"deposit":"14d9d182-1817-4438-a2f2-6eb119cd1de1"},"_deposit":{"created_by":10,"id":"2010577","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2010577"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02010577","sets":["1:7:1723085691840"]},"author_link":["855","1090","1074","3699"],"control_number":"2010577","item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicNumberOfPages":"6","bibliographicPageEnd":"94","bibliographicPageStart":"89","bibliographicVolumeNumber":"8","bibliographic_titles":[{"bibliographic_title":"水産技術","bibliographic_titleLang":"ja"},{"bibliographic_title":"Journal of fisheries technology","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The aim of this study was to compare the nutritional condition of hatchery-reared and wild chum salmon Oncorhynchus keta fry migrating down the Chitose River in Hokkaido, Japan. A total of 30,300,000 otolith-marked fry were released into the Chitose River from the Chitose Field Station during March and April 2013. A total of 186 chum salmon fry were subsequently captured downstream using net traps between April and June. The captured specimens included 56 hatchery-reared and 122 wild fry. Most of the hatchery-reared fry were captured shortly after being released in mid-April, while wild fish were captured throughout the sampling period with a peak in late May. The captured hatchery-reared fry were larger than the wild fish, but the condition factor, liver weight index and triglyceride content for the captured fry did not differ significantly between the hatchery-reared and wild fry. While the glycogen content of hatchery-reared fry was very high before they were released, these levels had decreased markedly compared to wild fry by the time of capture. The findings suggest that the hatchery-reared fish were under considerable nutritional stress in the river, but their nutritional condition did not threaten their survival.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"2013 年 3 ～ 4 月に千歳川へ放流されたふ化場産サケ稚魚と，野生サケ稚魚の栄養状態を比較した。4 ～ 6 月に，放流地点から 60 km 下流に設置したトラップで 186匹の稚魚を採捕した。野生魚には，卵黄の吸収を終えていない浮上直後の個体が含まれていた。放流魚の体サイズは，野生魚より大きいが，肝臓重量指数，トリグリセリド含量は，放流魚と野生魚の間に有意差はなかった。放流魚のグリコーゲン含有量は，放流前に高く、放流後は河川内で短期間に減少し，卵黄の吸収を終えた野生魚のグリコーゲン値とほぼ同等となった。一方、魚体のトリグリセリド含量は大部分の採捕魚で 0.3% 以上を示し，放流魚は生存可能な状態と判断された。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"ファイル名末尾に”_abs_j”のファイルは和文要旨","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_10001_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"},{"subitem_publisher":"Japan Fisheries Research 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Hiroshi","creatorNameLang":"en","creatorNameType":"Organizational"},{"creatorName":"真山, 紘","creatorNameLang":"ja","creatorNameType":"Organizational"},{"creatorName":"マヤマ, ヒロシ","creatorNameLang":"ja-Kana","creatorNameType":"Organizational"}],"familyNames":[{"familyName":"Mayama","familyNameLang":"en"},{"familyName":"真山","familyNameLang":"ja"},{"familyName":"マヤマ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Hiroshi","givenNameLang":"en"},{"givenName":"紘","givenNameLang":"ja"},{"givenName":"ヒロシ","givenNameLang":"ja-Kana"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-08-06"}],"filename":"fra_t_8_2_89.pdf","format":"application/pdf","licensetype":"license_0","mimetype":"application/pdf","url":{"url":"https://fra.repo.nii.ac.jp/record/2010577/files/fra_t_8_2_89.pdf"},"version_id":"bd003a16-35a8-4f99-9d22-a5864e4ee234"},{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-08-06"}],"filename":"fish_t_8_2_89_abs_j.pdf","format":"application/pdf","licensetype":"license_0","mimetype":"application/pdf","url":{"url":"https://fra.repo.nii.ac.jp/record/2010577/files/fish_t_8_2_89_abs_j.pdf"},"version_id":"61c18091-7fcf-45e6-9966-74bc03028ef1"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"ふ化場魚; 野生魚; 千歳川; 栄養状態","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"千歳川を降河するふ化場産および野生産サケ稚魚の栄養状態","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"千歳川を降河するふ化場産および野生産サケ稚魚の栄養状態","subitem_title_language":"ja"},{"subitem_title":"Nutritional condition of hatchery and wild chum salmon Oncorhynchus keta fry migrating down the Chitose River","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"10","path":["1723085691840"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-08-06"},"publish_date":"2024-08-06","publish_status":"0","recid":"2010577","relation_version_is_last":true,"title":["千歳川を降河するふ化場産および野生産サケ稚魚の栄養状態"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-07-09T06:28:41.317958+00:00"}