{"created":"2023-07-25T11:07:09.388926+00:00","id":10804,"links":{},"metadata":{"_buckets":{"deposit":"8f60b5eb-cc8f-457c-9c73-ca4883045536"},"_deposit":{"created_by":17,"id":"10804","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"10804"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010804","sets":[]},"author_link":["23387","23386","23388","23389"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"248","bibliographicPageStart":"235","bibliographicVolumeNumber":"9","bibliographic_titles":[{"bibliographic_title":"Polar Science"},{"bibliographic_title":"Polar Science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"An analysis of the stable isotopes of oxygen (δ18O) and hydrogen (δD) was used to examine the linkage between sea ice concentration and the migration of western arctic bowhead whales (Balaena mysticetus; WABW). We compared δ18O and δD variability along the length of WABW baleen with isotopic values of zooplankton prey from different WABW habitat, with published δ13C and δ15N data, and with historical sea ice records. Zooplankton signatures varied widely (δ18O = −13‰–56‰; δD = −220‰ to −75‰), with regional separation between winter (Bering Sea) and summer (eastern Beaufort Sea) habitats of WABW observable in δD. The δ18O and δD of WABW varied significantly along the length of baleen (δ18O = 8–18‰; δD = −180 to −80‰), confirming seasonal migration and reflecting distinct regional dietary variation in isotopes. WABW migration appears to have varied concomitant with temporal sea ice concentration (SIC) changes; in years with high SIC, the difference in δD of WABW baleen between seasonal habitats was significantly greater than low SIC periods. This work shows that SIC is not only a determinant of habitat accessibility for WABW, but baleen may also be a record of historical SIC and Arctic climate.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"西部北極海に生息するホッキョククジラの回遊と海氷密接度との関係を調べるために、ヒゲ板の酸素・水素の安定同位体比分析をおこなった。ヒゲ板の中での同位体値の変動を調べ、餌となる動物プランクトンの同位体値や過去の海氷記録との比較を行った。動物プランクトンの酸素・水素同位体比は地域・季節ごとに大きく異なっていた。ヒゲ板の酸素・水素同位体比はヒゲ板の形成方向にそって変動しており、季節的な回遊と地域ごとの餌の違いを反映すると考えられた。また回遊は海氷密接度の年変化と対応して変化しているようであった。本研究の結果は、海氷密接度がホッキョククジラのハビタット利用を決定づけるということだけでなく、クジラのヒゲ板が過去の海氷密接度や北極の気候に関する記録として有用かもしれないことを示している。","subitem_description_type":"Other"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2015.03.002"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2015.03.002","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1873-9652","subitem_source_identifier_type":"ISSN"}]},"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":"Pieter A.P. deHart"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Candace M. Picco"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Pieter A.P. deHart","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Candace M. Picco","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Arctic Ocean","subitem_subject_scheme":"Other"},{"subitem_subject":"Sea ice","subitem_subject_scheme":"Other"},{"subitem_subject":"Bowhead whale","subitem_subject_scheme":"Other"},{"subitem_subject":"Stable isotopes","subitem_subject_scheme":"Other"},{"subitem_subject":"Climate change","subitem_subject_scheme":"Other"},{"subitem_subject":"Arctic Ocean","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Sea ice","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Bowhead whale","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Stable isotopes","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Climate change","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Stable oxygen and hydrogen isotope analyses of bowhead whale baleen as biochemical recorders of migration and arctic environmental change","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Stable oxygen and hydrogen isotope analyses of bowhead whale baleen as biochemical recorders of migration and arctic environmental change"},{"subitem_title":"Stable oxygen and hydrogen isotope analyses of bowhead whale baleen as biochemical recorders of migration and arctic environmental change","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"17","path":["1414"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-06-05"},"publish_date":"2015-06-05","publish_status":"0","recid":"10804","relation_version_is_last":true,"title":["Stable oxygen and hydrogen isotope analyses of bowhead whale baleen as biochemical recorders of migration and arctic environmental change"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2023-07-25T16:22:36.647657+00:00"}