{"created":"2024-04-08T04:47:43.753539+00:00","id":2001699,"links":{},"metadata":{"_buckets":{"deposit":"883a9ccd-b200-46a5-a7f7-dbd20be031f1"},"_deposit":{"created_by":10,"id":"2001699","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2001699"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02001699","sets":["12:14:1716950587014"]},"author_link":[],"control_number":"2001699","item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1991-03","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"12","bibliographicPageEnd":"46","bibliographicPageStart":"35","bibliographicVolumeNumber":"55","bibliographic_titles":[{"bibliographic_title":"北海道区水産研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of the Hokkaido National Fisheries Research Institute","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The ecological characteristics of the North Pacific boreal region were reviewed from the viewpoint of prey-predator relationships. The feeding ground in this region was evaluated both by the total abundance of zooplankters and the feature of their distributions. Ecosystem in the Oyasio region is a compartment closely connected with the so-called transition and/or the mixing zone with variable plankton communities. The dietary habits of the rorqual whales that migrated into this region revealed the importance of small scaled aggregations of the three Calanus species and eight species of euphausiids. Such small gregarious fishes as Japanese sardine, mackerel, and Pacific saury and so on, are also seasonal migrants to this region, and share the swarming copepods with many other nektonic predators. With its extraordinal high density of an order of x105 inds/m3 or more in swarming Calanus species, swarms of the copepods and euphausiids are especially important in the region where the abundance of zooplankton biomass being estimated by the net sampling is relatively poor. Ecologically, the swarms of such zooplankton as Calanus plumchrus, C. cristatus, Euphausia-, Thysanoessa- and Nematoscelis-groups are one of the key phenomena that induce a formation of feeding ground for the predatory migrants to this region. Importance of biological/ecological characteristics of food plankton was discussed in connection with the meandering structure of hydrography in the transitional zone which neighbours to the Oyasio waters.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"北海道区水産研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"Hokkaido National Fisheries Research Institute","subitem_publisher_language":"en"}]},"item_10002_radio_30":{"attribute_name":"作成者","attribute_value_mlt":[{"subitem_radio_item":["吉","田"],"subitem_radio_language":"ja"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"hnf_k_55_3","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/2010501375","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN1015410X","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0513-2541","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":"河村, 章人","creatorNameLang":"ja"},{"creatorName":"カワムラ, アキト","creatorNameLang":"ja-Kana"},{"creatorName":"Kawamura, Akito","creatorNameLang":"en"}],"familyNames":[{"familyName":"河村","familyNameLang":"ja"},{"familyName":"カワムラ","familyNameLang":"ja-Kana"},{"familyName":"Kawamura","familyNameLang":"en"}],"givenNames":[{"givenName":"章人","givenNameLang":"ja"},{"givenName":"アキト","givenNameLang":"ja-Kana"},{"givenName":"Akito","givenNameLang":"en"}]}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"親潮とその周辺水塊-捕食者からみた摂餌場の一考察","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"親潮とその周辺水塊-捕食者からみた摂餌場の一考察","subitem_title_language":"ja"},{"subitem_title":"Oyashio and the boreal mixing zone as feeding ground for the seasonal predatory migrants","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716950587014"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-08"},"publish_date":"2024-04-08","publish_status":"0","recid":"2001699","relation_version_is_last":true,"title":["親潮とその周辺水塊-捕食者からみた摂餌場の一考察"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-01-20T02:52:03.719228+00:00"}