{"created":"2023-07-25T11:06:39.714397+00:00","id":10137,"links":{},"metadata":{"_buckets":{"deposit":"cf78fb3d-88d9-4999-a68b-751dcca31a3e"},"_deposit":{"created_by":27,"id":"10137","owners":[27],"pid":{"revision_id":0,"type":"depid","value":"10137"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00010137","sets":[]},"author_link":["18793","18794"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"269","bibliographicPageStart":"263","bibliographicVolumeNumber":"6","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":"Instantaneous mortality rates of the common planktonic copepod Oithona similis were investigated for the first time in Kola Bay, a region of the Barents Sea that is influenced by freshwater discharge. The rates were estimated in different seasons (December, May, September 2005 and July 2006). A vertical life table approach (VLT) was used to assess mortality. The total abundance of O. similis (copepodites IV and V, and adults) was highest in autumn and lowest in winter. The maximum mortality of O. similis for the stage pair copepodite IV–copepodite V (0.005 ± 0.001 day−1) occurred in December 2005, while the highest mortality rates for the pairs copepodite VM–adult male (0.453 ± 0.026 day−1) and copepodite VF–adult female (0.228 ± 0.006 day−1) occurred in summer 2006. Simple regression analyses showed that the total abundance of each stage and the mortality rates were positively significantly correlated with water temperature. The mortality rates for the stage pairs copepodite VM–adult male and copepodite VF–adult female were positively significantly correlated with chlorophyll a concentration. The abundance and mortality rate of O. similis in each season was determined by life cycle factors, and possibly by the dynamics of its food resources and potential predators.","subitem_description_type":"Abstract"}]},"item_10001_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"　バレンツ海のコラ湾においてカイアシ類Oithona similisの瞬間死亡率を調査した。調査は冬（2005年12月）、春（2005年5月）、夏（2006年7月）そして秋（2005年9月）の4シーズンで実施した。O. similisの現存量は秋に最高値を記録し（2627±646 ind m^<-3>）、冬に最も低い値となった（129±18 ind m^<-3>）。コペポダイト（C）IV－V期ペア間（0.005±0.001 day^<-1>）の最大死亡率は2005年の12月に、またCV期－成体雄（0.453±0.026 day^<-1>）とCV期－成体雌（0.228±0.006 day^<-1>）は2006年の7月に最大値が記録された。これらは温帯域や両極海域に較べて高い値を示していた。回帰分析結果によると、各ステージの現存量と死亡率は海水温と、またCV期－成体雄とCV期－成体雌の死亡率はクロロフィルa濃度と正相関が認められた。O. similisの現存量と死亡率の季節変化は、彼らの生活史、また餌供給量と捕食圧によって決まる可能性が示唆された。","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"国立極地研究所"}]},"item_10001_relation_12":{"attribute_name":"論文ID（NAID）","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"110009493404","subitem_relation_type_select":"NAID"}}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"10.1016/j.polar.2012.09.001"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1016/j.polar.2012.09.001","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12240481","subitem_source_identifier_type":"NCID"}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18739652","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":"Dvoretsky, Vladimir G."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Dvoretsky, Vladimir G.","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Copepoda","subitem_subject_scheme":"Other"},{"subitem_subject":"Zooplankton","subitem_subject_scheme":"Other"},{"subitem_subject":"Mortality","subitem_subject_scheme":"Other"},{"subitem_subject":"Fjord","subitem_subject_scheme":"Other"},{"subitem_subject":"Barents Sea","subitem_subject_scheme":"Other"},{"subitem_subject":"Copepoda","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Zooplankton","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Mortality","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Fjord","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Barents Sea","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":"Seasonal mortality rates of Oithona similis (Cyclopoida) in a large Arctic fjord","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Seasonal mortality rates of Oithona similis (Cyclopoida) in a large Arctic fjord"},{"subitem_title":"Seasonal mortality rates of Oithona similis (Cyclopoida) in a large Arctic fjord","subitem_title_language":"en"}]},"item_type_id":"10001","owner":"27","path":["1349"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-10-16"},"publish_date":"2014-10-16","publish_status":"0","recid":"10137","relation_version_is_last":true,"title":["Seasonal mortality rates of Oithona similis (Cyclopoida) in a large Arctic fjord"],"weko_creator_id":"27","weko_shared_id":27},"updated":"2023-07-25T16:21:47.724192+00:00"}