{"created":"2021-06-30T04:09:23.532814+00:00","id":2000461,"links":{},"metadata":{"_buckets":{"deposit":"49108706-9951-4a75-b396-53e6913dd10e"},"_deposit":{"id":"2000461","owner":"1","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2000461"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:02000461","sets":["40:6494:7162:1624955452230:1624955483380","9:504:7165:1624955366853:1624955421787"]},"author_link":[],"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"6","bibliographicPageStart":"1","bibliographicVolumeNumber":"44","bibliographic_titles":[{"bibliographic_title":"Coastal marine science","bibliographic_titleLang":"en"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The northern fur seal (Callorhinus ursinus) inhabits the North Pacific Ocean and Bering Sea, where it feeds on a variety of prey. In this study, we studied a captive male to determine how different prey affect the composition of and testosterone me\u0002tabolites in the faeces. Faecal steroid metabolite levels are often expressed per unit dry weight (DW) of faeces, but dry faeces contain both organic and inorganic matter, so we also measured the ash-free dry weight (AFDW), which can more accurately express the levels in samples with organic matter. The mean organic component of faeces was lower when the seal fed on fish than when it fed on squid. Testosterone metabolite levels in the AFDW and serum testosterone levels showed a significant rela\u0002tionship in faeces collected one day after the blood withdrawal. When the seal fed on squid, differences in testosterone metabo\u0002lite levels between DW and AFDW were small. These results suggest that faecal testosterone metabolite levels expressed in quantities per unit of AFDW are more useful than DW to understand the reproductive physiology of seals.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0002000461","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"International Coastal Research Center, Atmosphere and Ocean Research Institute, the University of Tokyo","subitem_publisher_language":"en"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11957899","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13493000","subitem_source_identifier_type":"PISSN"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"東京大学大気海洋研究所国際沿岸海洋研究センター"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Field Science Center for Northern Biosphere, Hokkaido University"},{"subitem_text_language":"en","subitem_text_value":"Izu Mito Sea Paradise"},{"subitem_text_language":"en","subitem_text_value":"Graduate School of Fisheries Sciences, Hokkaido University"},{"subitem_text_language":"en","subitem_text_value":"Institute for East China Sea Research, Nagasaki University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Hokkaido University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Otsuki, Mayuko","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Izu Mito Sea Paradise","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Kohyama, Kaoru","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Izu Mito Sea Paradise","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Goshima, Wataru","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Hokkaido University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Kobayashi, Motoki","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Hokkaido University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Hasegawa, Yuya","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Nagasaki University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Morita, Yuka","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Hokkaido University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Ijiri, Shigeho","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Hokkaido University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"Mitani, Yoko","creatorNameLang":"en"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-06-30"}],"filename":"CMS440101.pdf","filesize":[{"value":"571KB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/2000461/files/CMS440101.pdf"},"version_id":"51c0b2ce-c340-4dd9-8426-73c2fc2d5c03"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Faecal composition","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"ash-free dry weight","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"steroid hormones","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":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Effect of diet on faecal testosterone metabolite levels in a northern fur seal (Callorhinus ursinus) expressed as ash-free dry weight","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Effect of diet on faecal testosterone metabolite levels in a northern fur seal (Callorhinus ursinus) expressed as ash-free dry weight","subitem_title_language":"en"}]},"item_type_id":"4","owner":"1","path":["1624955483380","1624955421787"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2021-06-30"},"publish_date":"2021-06-30","publish_status":"0","recid":"2000461","relation_version_is_last":true,"title":["Effect of diet on faecal testosterone metabolite levels in a northern fur seal (Callorhinus ursinus) expressed as ash-free dry weight"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T05:29:32.535584+00:00"}