{"created":"2023-06-19T11:44:07.362663+00:00","id":13931,"links":{},"metadata":{"_buckets":{"deposit":"1ceeda3c-681f-4081-967a-f0c4c6e79ea0"},"_deposit":{"created_by":15,"id":"13931","owners":[15],"pid":{"revision_id":0,"type":"depid","value":"13931"},"status":"published"},"_oai":{"id":"oai:mie-u.repo.nii.ac.jp:00013931","sets":["420:724:1692755235032"]},"author_link":["45716"],"item_8_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-05-17","bibliographicIssueDateType":"Issued"}}]},"item_8_description_14":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_8_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"個体の長期的な食性を解析できる炭素・窒素安定同位体比分析を用いて河川中流域3地点の魚類群集の食物網構造を解析した。当初予想していた，複数種からなる資源分割は認められなかった。種単位でみると，アユの出現に伴いオイカワの食性が劇的に変化した。また，上流2地点では遊泳魚の炭素同位体比が底生魚より低く，これは陸生昆虫への依存度の違いと考えられた。最下流地点ではその傾向は認められなかったが，それは餌の炭素同位体比の変異が小さかったためと考えられた。また，国内外来魚オウミヨシノボリと在来魚カワヨシノボリの餌をめぐる競合が示された。","subitem_description_type":"Abstract"},{"subitem_description":"Food web structure of fish community at middle reach of a stream was analyzed by carbon and nitrogen stable isotope analysis (SIA). We success to estimate food web structures based on fish individuals. However, contrary to expectations, food resource partitioning with species-mixed groups was not observed. Stable isotope signatures were related within each species. It seems that the period which inter-individual relationships keep may too short to detect by SIA. In two of three study stations, carbon SI signatures were lower in water-column-dwelling fishes than bottom-dwelling fishes. It can be explained by the results of digestive tract contents analysis that water-column-dwelling fishes feed terrestrial insects but bottom-dwelling fishes do not. In the last station, the result was different because carbon SI signatures of producers were closer than those of the other two stations. In all stations, competitive relationships between a native goby and an alien congener were observed.","subitem_description_type":"Abstract"}]},"item_8_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"2015年度～2018年度科学研究費補助金(基盤研究(C))研究成果報告書","subitem_description_type":"Other"}]},"item_8_description_64":{"attribute_name":"科研費番号","attribute_value_mlt":[{"subitem_description":"15K07549","subitem_description_type":"Other"}]},"item_8_publisher_30":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"三重大学"}]},"item_8_text_31":{"attribute_name":"出版者（ヨミ）","attribute_value_mlt":[{"subitem_text_value":"ミエダイガク"}]},"item_8_text_65":{"attribute_name":"資源タイプ（三重大）","attribute_value_mlt":[{"subitem_text_value":"Kaken / 科研費報告書"}]},"item_8_version_type_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"淀, 太我","creatorNameLang":"ja"},{"creatorName":"ヨド, タイガ","creatorNameLang":"ja-Kana"},{"creatorName":"YODO, Taiga","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-11-16"}],"displaytype":"detail","filename":"2020RP0089.pdf","filesize":[{"value":"226.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"2020RP0089","url":"https://mie-u.repo.nii.ac.jp/record/13931/files/2020RP0089.pdf"},"version_id":"db983f19-89c8-4276-abc2-93b461858820"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"炭素・窒素安定同位体比分析","subitem_subject_scheme":"Other"},{"subitem_subject":"外来魚","subitem_subject_scheme":"Other"},{"subitem_subject":"食物網","subitem_subject_scheme":"Other"},{"subitem_subject":"河川中流域","subitem_subject_scheme":"Other"}]},"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":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"個体モザイク説に基づいた河川性魚類の餌資源分割の解明","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"個体モザイク説に基づいた河川性魚類の餌資源分割の解明","subitem_title_language":"ja"},{"subitem_title":"Estimation of food source partitioning in riverine fishes considering on inter-and intra-specific individual difference","subitem_title_language":"en"}]},"item_type_id":"8","owner":"15","path":["1692755235032"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2020-11-16"},"publish_date":"2020-11-16","publish_status":"0","recid":"13931","relation_version_is_last":true,"title":["個体モザイク説に基づいた河川性魚類の餌資源分割の解明"],"weko_creator_id":"15","weko_shared_id":-1},"updated":"2023-11-21T01:41:31.101528+00:00"}