{"created":"2022-01-28T01:00:15.368573+00:00","id":2005054,"links":{},"metadata":{"_buckets":{"deposit":"17372cc9-2bee-4f45-9822-bb424ee5ed8b"},"_deposit":{"id":"2005054","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2005054"},"status":"published"},"_oai":{"id":"oai:u-ryukyu.repo.nii.ac.jp:02005054","sets":["1642838403123","1642838403551:1642838405037"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_1551255647225":"沖縄・八重山群島の石西礁における現生貝形虫の生態学的・分類学的研究","subitem_1551255648112":"ja"},{"subitem_1551255647225":"The ecological and taxonomical study on the living ostracods from coral reefs in the Sckisci-sho area, Ryukyu Islands, Japan","subitem_1551255648112":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"田吹, 亮一","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"野原, 朝秀","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"Tabuki, Ryoichi","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Nohara, Tomohide","creatorNameLang":"en"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_1522299639480":"open access","subitem_1600958577026":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"貝形虫"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"生態学的研究"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"分類学的研究"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"生態分布"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"サンゴ礁"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"底質"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"種群"},{"subitem_1522299896455":"ja","subitem_1522300014469":"Other","subitem_1523261968819":"雄性生殖器"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"ostracoda"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"ecological study"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"taxonomical study"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"ecological distribution"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"coral reef"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"substrate"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"species group"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"male sexual organ"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"科研費番号: 02640612","subitem_description_type":"Other"},{"subitem_description":"平成3年度文部省科学研究費補助金(一般研究C)研究成果報告書","subitem_description_type":"Other"},{"subitem_description":"研究概要：本研究の目的はサンゴ礁域の底生貝形虫の生態分布を明らかにし、未記載種の分類学的記載を行う事にあった。従来、サンゴ礁域の貝形虫の分布はドレッヂにより採取された表層堆積物試料からの主に遺骸(殻)標本を基にする事が多く、その場合、殻は潮流等により容易に本来の生息域から運ばれる事から、生態分布については大まかな結果しか得られなかった。本研究では堡礁型サンゴ礁の石西礁において、1990年9月、SCUBAを用い、15m以浅の海域で実地に海底の様子を確認しつつ、調査、試料採取を行い、礁湖および礁斜面の10地点より合計30サンプルを採取した。各サンプルについて、貝形虫'生体'、200個体以上を目処に拾い出しを行い、結果として、Podocopa目40属76種、Myodocopa目2属2種を同定した。さらに、出現頻度の高いPodocopa目30種については、その分布と底質の種類との関連より、3つの貝形虫種群に大別した。即ち(1)砂底に特有な貝形虫種群(2)岩礁やレキ上に生育する藻類(大型,微小)に特有な貝形虫種群(3)底質の種類に関係なく出現する貝形虫種群の3つである。底質以外の環境要因の内、海水の水温、塩分濃度、溶存酸素量については調査域内の変化の幅が小さい事もあり、貝形虫種の分布との関連ははっきりしないが、水深や水塊が外洋水の影響を受けているかどうか等との関連で分布パターンが変化する種がいくつか認められる。未記載種は50以上あり、その分類学的記載は進行中である。種レベルの記載については化石化しにくいため、通常、古生物研究者が扱わない、いわゆる軟体部－付属肢や雄性生殖器－についても殻とともに検討した。その成果の一例として、石西礁より多産するXestoleberis属の2種が、各々、殻では日本本土近海より報告されてきたX.sagamiensis、X.hanaiiに酷似するものの、軟体部では明らかにこれら既知種とは異る新種である事が判明した事が挙げられる。","subitem_description_type":"Other"},{"subitem_description":"要約（英文）:The purpose of this study is to reveal the ecological distributions of ostracod species from coral reefs in the Sekisei-sho area, Ryukyu Islands, and to carry out the systematic descriptions on the undescribed species. In September, 1990, 30 samples for living ostracods were collected by SCUBA diving from 10 locations (about 3 to 15 meters deep); 5 locations in the lagoon and 5 in the reef slope. As a result, 76 species belonging to 40 genera of Podocopa and 2 species of Myodocopa were identified. Based on the distribution patterns of 30 podocopid species occurring frequently, three species groups in relation to the kinds of substrates can be distinguished; the first group appear in close relation to sand bottom, and the second is almost confined to macroalgae or filamentous minute algae on hard bottom such as rocks or gravels, and the third have no distinct relation to particular kinds of substrates. The species composition of the first and second groups are respectively variable to some extent, depending on the grain size distribution of sand bottom and the shape of macroalgae and rocks or gravels on which filamentous algae grow. Some species also differ in abundance depending on the nature of surrounding water mass such as oceanic or lagoonal. Taxonomical work on undescribed species over 50 are still ongoing. In this study, soft parts such as appendages and male sexual organs, which are not usually preserved as fossils, are also used as important taxonomical characters with carapace.","subitem_description_type":"Other"},{"subitem_description":"研究報告書","subitem_description_type":"Other"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_1522300295150":"ja","subitem_1522300316516":"田吹亮一"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_1551255818386":"jpn"}]},"item_1617186783814":{"attribute_name":"Identifier","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/20.500.12000/13588"}]},"item_1617186920753":{"attribute_name":"Source Identifier","attribute_value_mlt":[{"subitem_1522646500366":"NCID","subitem_1522646572813":"BA75011308"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1992-04","bibliographicIssueDateType":"Issued"}}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_1522305645492":"VoR","subitem_1600292170262":"http://purl.org/coar/version/c_970fb48d4fbd8a85"}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"02640612.pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://u-ryukyu.repo.nii.ac.jp/record/2005054/files/02640612.pdf"},"version_id":"f4d7b19c-8c69-47b0-93c2-61c18a2b6592"}]},"item_title":"沖縄・八重山群島の石西礁における現生貝形虫の生態学的・分類学的研究","item_type_id":"15","owner":"1","path":["1642838403123","1642838405037"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2009-12-02"},"publish_date":"2009-12-02","publish_status":"0","recid":"2005054","relation_version_is_last":true,"title":["沖縄・八重山群島の石西礁における現生貝形虫の生態学的・分類学的研究"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-10-31T02:28:29.991880+00:00"}