{"created":"2024-10-15T05:02:00.797766+00:00","id":2011728,"links":{},"metadata":{"_buckets":{"deposit":"15a899ca-b60d-465e-a05c-c63f1e52818a"},"_deposit":{"created_by":10,"id":"2011728","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2011728"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02011728","sets":["1:6:1724312742586"]},"author_link":["2845","1218"],"control_number":"2011728","item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicNumberOfPages":"11","bibliographicPageEnd":"11","bibliographicPageStart":"1","bibliographicVolumeNumber":"50","bibliographic_titles":[{"bibliographic_title":"水産大学校研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Journal of National Fisheries University","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"An acoustic survey involving the concurrent use of a quantitative echo-sounder and a sector-scanning sonar was conducted in December, 2000, off the Japan sea coast of Yamaguchi Prefecture. To visualize the semi-quantitative image of fish schools, the density information, including its variation, was extracted in range bins from the echogram of the quantitative echo-sounder. A sonar image of the school cross-section perpendicular to the transect was used to construct the three dimensional image of fish schools. The sonar images sampled at 12 sec intervals were digitized and stored in the computer memory as volume information with the x- and y-axes in the athwart and alongship directions, respectively. The z-axis represents depth. The volume of the fish schools is calculated by multiplying the number of voxcels by their size in the x-, y- and z- direction. The standing stock of schools was then semi-quantitatively estimated by multiplying the density of the schools by their volume. The present report describes an acoustic survey method to better assess school shape and offers a method to use the shape information for improved stock estimation. The necessity of geometric approach is pointed out to provide a correction for the location and extent of the non-scanned area in the surveyed water mass.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"水産大学校","subitem_publisher_language":"ja"},{"subitem_publisher":"National Fisheries University","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":"fishu_k_50_1","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":"en","subitem_relation_name_text":"agriknowledge"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://agriknowledge.affrc.go.jp/RN/2010652400","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"item_10002_source_id_11","attribute_value_mlt":[{"subitem_source_identifier":"AN00124678","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"item_10002_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"0370-9361","subitem_source_identifier_type":"PISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Hamano, Akira","creatorNameLang":"en"},{"creatorName":"濱野, 明","creatorNameLang":"ja"},{"creatorName":"ハマノ, アキラ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Hamano","familyNameLang":"en"},{"familyName":"濱野","familyNameLang":"ja"},{"familyName":"ハマノ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Akira","givenNameLang":"en"},{"givenName":"明","givenNameLang":"ja"},{"givenName":"アキラ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"2845","nameIdentifierScheme":"WEKO"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Nakamura, Takeshi","creatorNameLang":"en"},{"creatorName":"中村, 武史","creatorNameLang":"ja"},{"creatorName":"ナカムラ, タケシ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Nakamura","familyNameLang":"en"},{"familyName":"中村","familyNameLang":"ja"},{"familyName":"ナカムラ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Takeshi","givenNameLang":"en"},{"givenName":"武史","givenNameLang":"ja"},{"givenName":"タケシ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1218","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"90399634","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=90399634"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2030-01-01"}],"filename":"fishu_k_50_1.pdf","filesize":[{"value":"958.4 KB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"url":"https://fra.repo.nii.ac.jp/record/2011728/files/fishu_k_50_1.pdf"},"version_id":"eced326c-62cb-4fc1-bf22-2569402ea5b2"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"計量魚探機とスキャニングソナーを用いた魚群の定量的三次元画像化","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"計量魚探機とスキャニングソナーを用いた魚群の定量的三次元画像化","subitem_title_language":"ja"},{"subitem_title":"Combined use of quantitative echo-sounder with scanning sonar to visualize semi-quantitative three-dimensional image of fish schools","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1724312742586"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-10-11"},"publish_date":"2024-10-11","publish_status":"0","recid":"2011728","relation_version_is_last":true,"title":["計量魚探機とスキャニングソナーを用いた魚群の定量的三次元画像化"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-05-12T07:56:05.201746+00:00"}