{"created":"2024-04-08T04:46:52.718708+00:00","id":2001664,"links":{},"metadata":{"_buckets":{"deposit":"fa4deb45-3874-4f3f-943e-cdbccde27c3e"},"_deposit":{"created_by":10,"id":"2001664","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2001664"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02001664","sets":["12:14:1716950587014"]},"author_link":[],"control_number":"2001664","item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1996-03","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"38","bibliographicPageEnd":"276","bibliographicPageStart":"239","bibliographicVolumeNumber":"60","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":"To investigate the food habits of fish in an estuary, we examined stomach contents of 32 species of fish collected at Akkeshi-ko at Eastern Hokkaido, Japan. Fish species included in the analysis were Cottidae (Blepsias cirrhosus, Myoxocephalus brandti, M. jaok), Pleuronectidae (Pleuronectes obscurus, P. pinnifasciatus, Platichthys stellatus), Blennioidei (Lumpenus sagitta, Opisthocentrus dybowskii, O. ocellatus, Enedrias crassispina, Zoarces elongatus), Hexagrammidae (Hexagrammos stelleri, H. lagocephalus), Eleginus gracilis, Arctoscopus japonicus, Chaenogobis mororanus, Liparis agassizii, and others. Food organisms were classified into Polychaeta, Mysidacea, Flabellifera, Gammaridea, Natantia, Cragonidae, Brachyura, Pisces, and others. Seven analysis methods were applied to the stomach contents : frequency of occurrence, number, weight, index of relative importance, trophic level, Simpson's index of diversity, and Schoener's index of intra- and interspecific overlaps for food habit. Fish in the estuary were clustered into six feeding groups based on their prey : group A fed on Mysidacea and Cragonidae (E. gracilis, A. japonicus, C. mororanus, E. crassispina, H. stelleri, B. cirrhosus, M. brandti, P. stellatus, M. brandti (TL≤225mm)) ; group B fed on Pisces (M. jaok, M. brandti (TL>225mm)) ; group C fed on Pisces and Natantia (L. agassizi) ; group D fed on Gammaridea (L. sagitta, O. dybowskii, O. ocellatus, Z. elongatus) ; group E fed on Polychaeta (P. obscurus), group F fed on Natantia and Brachyura (H. lagocephalus). In each group, competition for food organisms was expected. However, since Simpson's indices of diversity for some fishes in the group were large, it was suggested that the competition for food organism was not severe within the same group. The food chain of Akkeshi-ko was estimated from relationship of these groups. The Akkeshi-ko food chain structure is complex and highly diverse.","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_60_4","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/2010541844","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":"渡辺, 研一","creatorNameLang":"ja"},{"creatorName":"ワタナベ, ケンイチ","creatorNameLang":"ja-Kana"},{"creatorName":"Watanabe, Ken-ichi","creatorNameLang":"en"}],"familyNames":[{"familyName":"渡辺","familyNameLang":"ja"},{"familyName":"ワタナベ","familyNameLang":"ja-Kana"},{"familyName":"Watanabe","familyNameLang":"en"}],"givenNames":[{"givenName":"研一","givenNameLang":"ja"},{"givenName":"ケンイチ","givenNameLang":"ja-Kana"},{"givenName":"Ken-ichi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"南, 卓志","creatorNameLang":"ja"},{"creatorName":"ミナミ, タカシ","creatorNameLang":"ja-Kana"},{"creatorName":"Minami, Takashi","creatorNameLang":"en"}],"familyNames":[{"familyName":"南","familyNameLang":"ja"},{"familyName":"ミナミ","familyNameLang":"ja-Kana"},{"familyName":"Minami","familyNameLang":"en"}],"givenNames":[{"givenName":"卓志","givenNameLang":"ja"},{"givenName":"タカシ","givenNameLang":"ja-Kana"},{"givenName":"Takashi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"飯泉, 仁","creatorNameLang":"ja"},{"creatorName":"イイズミ, ヒトシ","creatorNameLang":"ja-Kana"},{"creatorName":"Iizumi, Hitoshi","creatorNameLang":"en"}],"familyNames":[{"familyName":"飯泉","familyNameLang":"ja"},{"familyName":"イイズミ","familyNameLang":"ja-Kana"},{"familyName":"Iizumi","familyNameLang":"en"}],"givenNames":[{"givenName":"仁","givenNameLang":"ja"},{"givenName":"ヒトシ","givenNameLang":"ja-Kana"},{"givenName":"Hitoshi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"今村, 茂生","creatorNameLang":"ja"},{"creatorName":"イマムラ, シゲオ","creatorNameLang":"ja-Kana"},{"creatorName":"Imamura, Shigeo","creatorNameLang":"en"}],"familyNames":[{"familyName":"今村","familyNameLang":"ja"},{"familyName":"イマムラ","familyNameLang":"ja-Kana"},{"familyName":"Imamura","familyNameLang":"en"}],"givenNames":[{"givenName":"茂生","givenNameLang":"ja"},{"givenName":"シゲオ","givenNameLang":"ja-Kana"},{"givenName":"Shigeo","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":"北海道厚岸湖における魚類の胃内容物から見た種間関係","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"北海道厚岸湖における魚類の胃内容物から見た種間関係","subitem_title_language":"ja"},{"subitem_title":"Interspecific relationship by composition of stomach contents of fish at Akkeshi-ko, an estuary at eastern Hokkaido, Japan","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":"2001664","relation_version_is_last":true,"title":["北海道厚岸湖における魚類の胃内容物から見た種間関係"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-01-17T05:17:07.110329+00:00"}