{"created":"2024-04-23T01:55:38.093354+00:00","id":2002507,"links":{},"metadata":{"_buckets":{"deposit":"8f8f40e3-2595-4d08-8ce2-36137241d88f"},"_deposit":{"created_by":10,"id":"2002507","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2002507"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02002507","sets":["12:14:1716951426151"]},"author_link":["2028"],"control_number":"2002507","item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1987-01","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"7","bibliographicPageEnd":"19","bibliographicPageStart":"13","bibliographicVolumeNumber":"37","bibliographic_titles":[{"bibliographic_title":"日本海区水産研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of the Japan Sea Regional Fisheries Research Laboratory","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In the Japan Sea, a maximum of chlorophyll concentration (subsurface chlorophyll maximum) is sometimes found at deep layers as in many other seas. We have examined environmental conditions relating to it using the previous data reported by the Maizuru Marine Observatory. As a result, the following features concerning subsurface chlorophyll maxima were revealed; 1) A subsurface chlorophyll maximum was found in almost every spring and in some winters, but scarcely in summer and autumn. Besides, there was a tendency for it to appear in offshore areas in spring. 2) A well-developed subsurface chlorophyll maximum (more than 0.5 μg Chl-a/l) was found in May in 1977, '79, '80, '84, whereas the volume transport by Tsushima Current in these months was extremely low compared with the same months in other years except for 1977. 3) A chlorophyll maximum corresponded to such depth as the nitrate-N and the phosphate-P were notably dense. 4) Chlorophyll maximum layers were sometimes deeper than 150m. Though in these layers, the percentages of chlorophyll a in total pigments were often higher than 70-80%, especially in May in 1977, '79 and '80. Such layers were apparently below the euphotic zone, it was thought to be quite a severe condition for the photosynthetic phytoplankton.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"日本海においても,他海域と同様,表層より下方にクロロフィルの極大層(亜表層クロロフィル極大)が出現することがある. 著者らは舞鶴海洋気象台のPM線のデータを解析し,日本海の亜表層クロロフィル極大に関して次のような知見を得た.1) 亜表層クロロフィル極大層は,日本海では春季に最も多くみられ,夏季や秋季には稀であった.また,この極大層は沿岸よりも沖合ほど出現する割合が多かった.2) 春季における顕著な極大層は,1977,'79,'80,'84年にみられたが,1977年を除いては,いずれも例年の春季に比べ,対馬暖流の北上流量が少ない時期であった.3) 鉛直的にみると,クロロフィル極大層は硝酸態窒素,燐酸態燐濃度が著しい増加をはじめる水深に対応していた.4) 春季においてはクロロフィル極大層が150m以深にある場合でも,しばしばクロロフィルaの全植物色素(クロロフィルa+フェオフィチン)に対する割合が70~80%以上と高い値を示した. これは植物プランクトンの活性を示唆するが,このような深層において光合成が行われているかどうかは現在のところ不明である.","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本海区水産研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"Japan Sea Regional Fisheries Research Laboratory","subitem_publisher_language":"en"}]},"item_10002_radio_30":{"attribute_name":"作成者","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":"js_k_37_13_19","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/2010362005","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":"AN00186380","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0021-4620","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":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Nagata, Hiroshi","creatorNameLang":"en"},{"creatorName":"長田, 宏","creatorNameLang":"ja"},{"creatorName":"ナガタ, ヒロシ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Nagata","familyNameLang":"en"},{"familyName":"長田","familyNameLang":"ja"},{"familyName":"ナガタ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Hiroshi","givenNameLang":"en"},{"givenName":"宏","givenNameLang":"ja"},{"givenName":"ヒロシ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"2028","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"80371988","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=80371988"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"日本海区水産研究所","affiliationNameLang":"ja"},{"affiliationName":"ニホンカイクスイサンケンキュウジョ","affiliationNameLang":"ja-Kana"},{"affiliationName":"Japan Sea Regional Fisheries Research Laboratory","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"木谷, 浩三","creatorNameLang":"ja"},{"creatorName":"キタニ, コウゾウ","creatorNameLang":"ja-Kana"},{"creatorName":"Kitani, Kozo","creatorNameLang":"en"}],"familyNames":[{"familyName":"木谷","familyNameLang":"ja"},{"familyName":"キタニ","familyNameLang":"ja-Kana"},{"familyName":"Kitani","familyNameLang":"en"}],"givenNames":[{"givenName":"浩三","givenNameLang":"ja"},{"givenName":"コウゾウ","givenNameLang":"ja-Kana"},{"givenName":"Kozo","givenNameLang":"en"}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Chlorophyll a; Japan Sea; PM line; subsurface chlorophyll maximum","subitem_subject_language":"en","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":"日本海 PM 線上におけるクロロフィル a の鉛直分布","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"日本海 PM 線上におけるクロロフィル a の鉛直分布","subitem_title_language":"ja"},{"subitem_title":"Vertical Distribution of Chlorophyll a along the PM Line in the Japan Sea","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716951426151"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-23"},"publish_date":"2024-04-23","publish_status":"0","recid":"2002507","relation_version_is_last":true,"title":["日本海 PM 線上におけるクロロフィル a の鉛直分布"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-04-01T04:27:56.910850+00:00"}