{"created":"2021-03-01T06:58:11.903888+00:00","id":38793,"links":{},"metadata":{"_buckets":{"deposit":"90f2cebf-5358-4782-bb40-c351e298f582"},"_deposit":{"id":"38793","owners":[],"pid":{"revision_id":0,"type":"depid","value":"38793"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00038793","sets":["40:6494:6495:6496","9:504:6497:6498"]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2003-03-28","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"79","bibliographicPageStart":"72","bibliographicVolumeNumber":"28","bibliographic_titles":[{"bibliographic_title":"Otsuchi marine science = 東京大学海洋研究所大槌臨海研究センター研究報告"}]}]},"item_4_description_13":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Cartography of seagrass beds is very important for management and conservation of sound littoral ecosystems and sustainable fisheries in the coastal waters. The cartographical methods to map spatial distribution of seagrass beds are reviewed. They are classified into two categories. One is a direct method by visual observation and the other is an indirect method using a remote sensing apparatus. Indirect methods are divided into optical or hydro-acoustic methods. Indirect methods require sea truth by direct methods. Optical methods are image analysis of aerial photography or satellite imagery. They are effective for mapping broad areas but limited to shallow waters due to light attenuation in waters. Hydro-acoustic methods such as an echosounder and a side scan sonar have no limitation of turbidity. The echosounder is practical to map vertically density and height distributions of seagrass beds. The side scan sonar and multi-beam sonar are appropriate for mapping broad horizontal distributions. Coupling of several indirect mapping methods is more useful than using only one method.","subitem_description_type":"Abstract"}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/00038784","subitem_identifier_reg_type":"JaLC"}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Otsuchi Marine Research Center, Ocean Research Institute, the University of Tokyo"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11358599","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13448420","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"452","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"東京大学海洋研究所大槌臨海研究センター"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Ocean Research Institute, The University of Tokyo"},{"subitem_text_value":"Graduate School of Fisheries Science, Hokkaido University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Komatsu, Teruhisa"}],"nameIdentifiers":[{"nameIdentifier":"137222","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mikami, Atsuko"}],"nameIdentifiers":[{"nameIdentifier":"137223","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sultana, Sayeeda"}],"nameIdentifiers":[{"nameIdentifier":"137224","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishida, Kenichi"}],"nameIdentifiers":[{"nameIdentifier":"137225","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hiraishi, Tomonori"}],"nameIdentifiers":[{"nameIdentifier":"137226","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tatsukawa, Ken-ichi"}],"nameIdentifiers":[{"nameIdentifier":"137227","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-27"}],"displaytype":"detail","filename":"KJ00000046669.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KJ00000046669.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/38793/files/KJ00000046669.pdf"},"version_id":"82ace022-3521-4712-9955-e07f056b026a"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"seagrass","subitem_subject_scheme":"Other"},{"subitem_subject":"cartography","subitem_subject_scheme":"Other"},{"subitem_subject":"mapping","subitem_subject_scheme":"Other"},{"subitem_subject":"remote sensing","subitem_subject_scheme":"Other"},{"subitem_subject":"hydro-acoustic","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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":"Hydro-acoustic methods as a practical tool for cartography of seagrass beds","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Hydro-acoustic methods as a practical tool for cartography of seagrass beds"}]},"item_type_id":"4","owner":"1","path":["6498","6496"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-04-05"},"publish_date":"2007-04-05","publish_status":"0","recid":"38793","relation_version_is_last":true,"title":["Hydro-acoustic methods as a practical tool for cartography of seagrass beds"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:13:28.743545+00:00"}