{"created":"2024-04-25T05:02:03.052014+00:00","id":2003198,"links":{},"metadata":{"_buckets":{"deposit":"0a537074-62f3-40a1-85f8-e110a0f538d6"},"_deposit":{"created_by":10,"id":"2003198","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2003198"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02003198","sets":["12:14:1716951205920"]},"author_link":["1782","3313"],"control_number":"2003198","item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1996-03","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"15","bibliographicPageEnd":"73","bibliographicPageStart":"59","bibliographicVolumeNumber":"29","bibliographic_titles":[{"bibliographic_title":"南西海区水産研究所研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of Nansei National Fisheries Research Instituite","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Size fractionated phytoplankton biomass and primary productivity were measured in Osaka Bay during five research cruises made in September, December of 1984 and March, June and September of 1985. Chlorophyll a was determined fluorometrically and productivity was measured by an in situ 13C method. The chlorophyll biomass (mg m-2) ranged from 5.8 to 587.4 mg m-2, with a mean of 56.2 mg m-2 for nanoplankton (less than 10μm) and 15.3 to 1020.9 mg m-2 with a mean of 131.5 mg m-2 for the total plankton. Phytoplankton biomass was higher in warm seasons than in cold. Nanoplankton accounted for 43 % of the total biomass in the Bay. Mean biomass in terms of carbon was calculated to be3.4 gC m-2 and 7.8 gC m-2 for nanoplankton and total plankton, respectively. Photosynthetic rates ranged from 0.07 to 14.21 gC m-2 d-1, with a mean of 1.77 gC m-2 d-1 for nanoplankton, and 0.16 to 14.95 gC m-2 d-1 with a mean of 2.66 gC m-2 d-1 for total plankton. Photosynthetic rate per unit amount of chlorophyll a (assimilation number) at the surface varied from 2.1 to 8.9 mgC mgChl.a1-1 h-1for nanoplankton and from 2.4 to 10.6 mgC mgChl.a-1 h-1 for total plankton. Relative percentages of nanoplankton to total production varied considerably from 5 to 95% with season and area. Nanoplankton contribution was higher in warm seasons than in cold ones and was lower in northeastern part of the Bay than the southwestern offshore area throughout the survey. Annual primary production was calculated to be 646 gC m-2 yr-1 for nanoplankton, and 971 gC m-2 yr-1 for the total phytoplankton. Nanoplankton accounted for 67 % of total production in the Bay. These results indicate that Osaka Bay is one of the most productive waters in Japan and have the characteristics of highly eutrophicated waters where the contribution of nanoplankton is relatively small.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"1984年9月~1985年9月の期間,計5回の航海によって、大阪湾の定点でサイズ画分(ナノプランクトン及び全植物プランクトン)ごとの植物プランクトン現存量と生産量の測定を行った。現存量はクロロフィルaを螢光法で求め,それに炭素/クロロフィルa比を乗じて炭素量に換算した。また,生産量は13Cをトレーサーとした現場吊り下げ法によった。クロロフィルa現存量はナノプランクトン画分(10μm以下)で5.8~587.4mg m-2(平均56.2 mg m-2)の範囲に,全植物プランクトン画分で15.3~1020.9 mgm-2(平均131.5 mg m-2)の範囲にあった。現存量は高水温期に高く,低水温期に低かった。ナノプランクトン画分は全植物プランクトン現存量の43%を占めた。炭素量に換算した現存量は,ナノプランクトン画分,全植物プランクトン画分でそれぞれ3.4 gCm-2,7.8gC m-2であった.光合成速度はナノプランクトン画分,全植物プランクトン画分でそれぞれ0.07~14.21 gC m-2d-1(平均1.77 gC m-2 d-1), 0.16~14.95 gCm-2 d-1(平均2.66 gC m-2 d-1)であった。単位クロロフィルa当たりの光合成速度はナノプランクトン画分,全植物プランクトン画分でそれぞれ2.1~8.9 mgC mgChl.a-1h-1,2.4~10.6 mgC mgChl.a-lh-lであった。全生産量に対するナノプランクトンの寄与率は季節及び海域によって5~95%と大きく変動した。ナノプランクトンの寄与率は高水温期に大きく,低水温期に小さく,また海域的には,湾東北部で小さく,湾南西部で大きかった。年間基礎生産量はナノプランクトン画分,全画分でそれぞれ646gC m~2 yr-1,971 gC m-2 yr-1であった。ナノプランクトンは全生産量の67%を占めた。以上のように,大阪湾は我国で最も基礎生産の高い海域であること,さらにそこではナノプランクトンの現存量及び生産量に占める寄与率が比較的小さいことが判明した。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"南西海区水産研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"Nansei National Fisheries Research Instituite","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":"nnf_k_29_59","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/2010541833","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"item_10002_source_id_11","attribute_value_mlt":[{"subitem_source_identifier":"AN00181988","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"item_10002_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"0388-841X","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":[{"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Yamaguchi, Mineo","creatorNameLang":"en"},{"creatorName":"山口, 峰生","creatorNameLang":"ja"},{"creatorName":"ヤマグチ, ミネオ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Yamaguchi","familyNameLang":"en"},{"familyName":"山口","familyNameLang":"ja"},{"familyName":"ヤマグチ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Mineo","givenNameLang":"en"},{"givenName":"峰生","givenNameLang":"ja"},{"givenName":"ミネオ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1782","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"00371956","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=00371956"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Imai, Ichiro","creatorNameLang":"en"},{"creatorName":"今井, 一郎","creatorNameLang":"ja"},{"creatorName":"イマイ, イチロウ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Imai","familyNameLang":"en"},{"familyName":"今井","familyNameLang":"ja"},{"familyName":"イマイ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Ichiro","givenNameLang":"en"},{"givenName":"一郎","givenNameLang":"ja"},{"givenName":"イチロウ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3313","nameIdentifierScheme":"WEKO"}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Osaka Bay; phytoplankton biomass; primary productivity; nanoplankton","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":"item_resource_type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"大阪湾におけるサイズ画分ごとの植物プランクトン現存量と基礎生産量","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"大阪湾におけるサイズ画分ごとの植物プランクトン現存量と基礎生産量","subitem_title_language":"ja"},{"subitem_title":"Size Fractionated Phytoplankton Biomass and Primary Productivity in Osaka Bay, Eastern Seto Inland Sea, Japan","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716951205920"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-25"},"publish_date":"2024-04-25","publish_status":"0","recid":"2003198","relation_version_is_last":true,"title":["大阪湾におけるサイズ画分ごとの植物プランクトン現存量と基礎生産量"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-04-11T01:44:51.020024+00:00"}