{"created":"2024-05-17T09:22:00.751543+00:00","id":2005059,"links":{},"metadata":{"_buckets":{"deposit":"90271e62-dbe2-4042-8a78-c99f4faf7703"},"_deposit":{"created_by":10,"id":"2005059","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2005059"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02005059","sets":["12:14:1716951205920"]},"author_link":["3381","3371"],"control_number":"2005059","item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1954-10","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"8","bibliographicPageEnd":"14","bibliographicPageStart":"7","bibliographicVolumeNumber":"6","bibliographic_titles":[{"bibliographic_title":"内海区水産研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of Naikai Regional Fisheries Research Laboratory","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Various ecological values such as the compensation depth have been calculated frequently by the equation uT=const., where u is extinction coefficient and T is the visible depth of Secchi disc. But the kind and composition of the matters suspended especially in bays and estuarines seems to alter the optical character of the water mass, resulting in modified relation between u and T. The present authors induced from their results of observations, a in the equation IT = I₀ exp (-aT⁰·⁷) where T ; the depth of Secchi disc, 1T: the illumination at the depth T, 1₀ : that of sea surface, to depend on the character of suspended matter, showing the value 2 in estuary at the case of flood, 1-0.4 in bay water and 0.4-0. 1 in the oceanic water. The distribution of the value of a coincides fairly with that of other oceacographycal properties such as surface chlorinity. Using this relation, the compensation depth of phytoplankton and daily one can be obtained approximately from next equations. Zc = log I₀ – l₀ g lc / a log e T⁰·³ (Zc : compenstion depth Ic : Illumination at Zc ) Zcd = 0.18 log Jr - 0.093 / a log e T⁰·³ (Zcd : compensation depth for 24h Jr : daily radiation from sun and sky) Hence, the value of Zc/T is not constant but changes with the values a and T.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"従来μT=const.(μ:消散係数, T:透明度の深さ)から海の生産層の厚さ其他の計算がなされているが,水中に懸濁する粒子の種類又は組成によって水塊の光学的性質が相違し,この関係も一様ではないと推定される。著者等の実測其他の記録から見ると,Tでの照度1TはIT=I₀ exp (-aTᵇ) (1₀は表面照度)の形をとると考えられ,且b=0.7, aは大略,洪水による出水時で2,湾内水で1~0.4,沖合水で0.4~0.1の範囲であり,或水域のaの値の分布はCl%の分布の如き海洋学的性質と可成りよく一致する。又之等の式を使って,植物planktonの補償深度,1日補償深度を近似的に求めた。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"内海区水産研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"Naikai Regional Fisheries Research Laboratory","subitem_publisher_language":"en"}]},"item_10002_radio_30":{"attribute_name":"item_10002_radio_30","attribute_value_mlt":[{"subitem_radio_item":"吉田","subitem_radio_language":"ja"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"nai_k_0602","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/2010841437","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"item_10002_source_id_11","attribute_value_mlt":[{"subitem_source_identifier":"AN00176718","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"item_10002_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"0497-5022","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":"Hanaoka, Tasuku","creatorNameLang":"en","creatorNameType":"Personal"},{"creatorName":"花岡, 資","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"ハナオカ, タスク","creatorNameLang":"ja-Kana","creatorNameType":"Personal"}],"familyNames":[{"familyName":"Hanaoka","familyNameLang":"en"},{"familyName":"花岡","familyNameLang":"ja"},{"familyName":"ハナオカ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Tasuku","givenNameLang":"en"},{"givenName":"資","givenNameLang":"ja"},{"givenName":"タスク","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3381","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Murakami, Akio","creatorNameLang":"en","creatorNameType":"Personal"},{"creatorName":"村上, 彰男","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"ムラカミ, アキオ","creatorNameLang":"ja-Kana","creatorNameType":"Personal"}],"familyNames":[{"familyName":"Murakami","familyNameLang":"en"},{"familyName":"村上","familyNameLang":"ja"},{"familyName":"ムラカミ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Akio","givenNameLang":"en"},{"givenName":"彰男","givenNameLang":"ja"},{"givenName":"アキオ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3371","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"内湾に於ける水中照度","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"内湾に於ける水中照度","subitem_title_language":"ja"},{"subitem_title":"On the submarine illumination of bay water","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716951205920"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-05-17"},"publish_date":"2024-05-17","publish_status":"0","recid":"2005059","relation_version_is_last":true,"title":["内湾に於ける水中照度"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-05-26T08:25:50.281380+00:00"}