{"created":"2024-06-10T08:42:23.601981+00:00","id":2006971,"links":{},"metadata":{"_buckets":{"deposit":"29f3f45a-a4bb-4ccd-9c30-10b167201d44"},"_deposit":{"created_by":10,"id":"2006971","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2006971"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02006971","sets":["12:14:1716950799012"]},"author_link":[],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1955-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"tnf_k_4_147","bibliographicNumberOfPages":"9","bibliographicPageEnd":"155","bibliographicPageStart":"147","bibliographicVolumeNumber":"4","bibliographic_titles":[{"bibliographic_title":"東北海区水産研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of Tohoku Regional Fisheries Research Laboratory","bibliographic_titleLang":"en"}]}]},"item_10002_description_6":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"アブラガレイの椎体及び耳石の表面に現われた不透明帯を測定して次の結果を得た。1)縦軸に体長を、横軸に椎体半径及び耳石半径をとって作図すると、plotされた点は略々直線状になるので、両者の関係は1次式で示し得るとし、次の関係式を得た。椎体l=4.26r+24.34...(1) 耳石l=3.85r-38.32...(2) 但しl...体長(mm) r...椎体又は耳石半径(1/23mm) 2)椎体の場合各輪半径平均値を(1)式に代入して得た輪紋形成時の計算体長と、4月・5月頃採集された同一輪群の実測体長とは略々一致する。従って此の輪紋は4月・5月頃形成された年輪と見る事が出来る。3)耳石の場合各輪半径平均値を(2)式に代入して得た輪紋形成時の計算体長が椎体の場合と第8輪まで略々一致する。之から耳石の輪紋と椎体のそれは概ね同一時期に形成されたものと見る事が出来る。第8輪以上から次第に差を生じて来るが、之は耳石半径と体長との関係を1次式で示し得るとした事に無理があったので、此の場合は寧ろ指数曲線で示すのが妥当と考える。4)同一個体に於ける椎体と耳石の輪紋数は、6輪以下のものでは全部一致しているが、7輪で2％、8輪で18％、9輪以上で52％の不一致を見た。而も此の差は何れも椎体の方が1・2輪少なくなっている。之は椎体の輪紋が高年魚になるに従って明瞭を缺き、見落しが現われたものと考える。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東北海区水産研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"Tohoku Regional Fisheries Research Laboratory","subitem_publisher_language":"en"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"tnf_k_4_147","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/2010843830","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":"AN00167637","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0049-402X","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":"笠原, 康平","creatorNameLang":"ja"}],"familyNames":[{"familyName":"笠原","familyNameLang":"ja"}],"givenNames":[{"givenName":"康平","givenNameLang":"ja"}]}]},"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":"アブラガレイの年令査定に就いて","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"アブラガレイの年令査定に就いて","subitem_title_language":"ja"}]},"item_type_id":"10002","owner":"10","path":["1716950799012"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-06-10"},"publish_date":"2024-06-10","publish_status":"0","recid":"2006971","relation_version_is_last":true,"title":["アブラガレイの年令査定に就いて"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-02-04T00:17:02.871200+00:00"}