{"created":"2023-07-25T09:58:56.742237+00:00","id":2141,"links":{},"metadata":{"_buckets":{"deposit":"e84a9d21-1c9a-4254-8cc0-93a4dba37289"},"_deposit":{"created_by":15,"id":"2141","owners":[15],"pid":{"revision_id":0,"type":"depid","value":"2141"},"status":"published"},"_oai":{"id":"oai:oacis.repo.nii.ac.jp:00002141","sets":["187:189:338","187:189:339","41:505","70:337","70:449"]},"author_link":["2106","3378","3380","3325","2798","3326","3376","3379","2793","3377"],"item_3_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-02-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"915","bibliographicPageStart":"897","bibliographicVolumeNumber":"18","bibliographic_titles":[{"bibliographic_title":"Biogeosciences"}]}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"To better understand the nutrient assimilation characteristics of subtropical phytoplankton, deep-water addition incubation experiments were carried out on surface waters collected at seven stations across the subtropical North and South Pacific Ocean. These deep-water additions induced phytoplankton blooms with nutrient drawdown at all stations. The drawdown ratios of dissolved inorganic nitrogen (DIN) to phosphate (PO4) varied from 14.1 to 30.7 at the PO4-replete stations in the central North Pacific (CNP) and eastern South Pacific (ESP). These ratios were similar to the range represented by the canonical Redfield ratio (16) through to typical particulate N:P ratios in the surface subtropical ocean (28). In contrast, lower DIN:PO4 drawdown ratios (7.7–13.3) were observed in induced blooms at the PO4-depleted stations in the western North Pacific (WNP). The DIN:PO4 drawdown ratios in the PO4-replete ESP were associated with eukaryote-dominated blooms, while those in the PO4-depleted WNP were associated with eukaryotic and cyanobacterial blooms. The surplus PO4 assimilation, relative to DIN, by phytoplankton in the WNP was not expected based on their typical cellular N:P ratio and was likely due to the high PO4 uptake capability as induced by low-PO4-adapted phytoplankton. The low- and high-P* (=PO4− DIN/16) regimes geographically corresponded to the low and high DIN:PO4 drawdown ratios in the WNP and the CNP or ESP, respectively. The basin-wide P* distribution in the oligotrophic Pacific surface waters showed a clear regional trend from low in the WNP (<50 nM) to high in the ESP (>100 nM). These results suggest that the subtropical phytoplankton blooms as observed in our experiments could be an important factor controlling P* as well as the commonly recognized dinitrogen fixation and denitrification characteristics."}]},"item_3_description_63":{"attribute_name":"研究課題番号","attribute_value_mlt":[{"subitem_description":"17H01852"},{"subitem_description":"15H02802"}]},"item_3_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"European Geosciences Union"},{"subitem_publisher":"Copernicus Publications"}]},"item_3_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.5194/bg-18-897-2021","subitem_relation_type_select":"DOI"}}]},"item_3_relation_13":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Publisher's Version/PDF (OpenAccess)"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.5194/bg-18-897-2021","subitem_relation_type_select":"DOI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"研究代表者: 橋濱史典 (東京海洋大学)"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://nrid.nii.ac.jp/ja/nrid/1000080535807/","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"KAKEN研究課題: 海水中の尿素の高感度分析法の開発と貧栄養海域の物質循環における尿素の役割の解明"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-17H01852/","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"KAKEN研究課題: 天然放射性リン同位体による亜熱帯海域のリン供給過程の解明"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"KAKEN研究課題: 海水中の尿素の高感度分析法の開発と貧栄養海域の物質循環における尿素の役割の解明 ","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"European Geosciences Union"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://www.egu.eu/","subitem_relation_type_select":"URI"}}]},"item_3_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1726-4170","subitem_source_identifier_type":"ISSN"}]},"item_3_subject_62":{"attribute_name":"件名","attribute_value_mlt":[{"subitem_subject":"科学研究費研究成果"}]},"item_3_subject_64":{"attribute_name":"科学研究費研究課題","attribute_value_mlt":[{"subitem_subject":"海水中の尿素の高感度分析法の開発と貧栄養海域の物質循環における尿素の役割の解明"},{"subitem_subject":"Sensitive determination of nanomolar urea and its dynamics in oligotrophic ocean"},{"subitem_subject":"天然放射性リン同位体による亜熱帯海域のリン供給過程の解明"},{"subitem_subject":"Cosmogenic radiotracer study of phosphorus cycling in oligotrophic subtropical ocean"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hashihama, Fuminori"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"Saito, Hiroaki"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kodama, Taketoshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yasui, Saori"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kanda, Jota"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"Tanita, Iwao"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ogawa, Hiroshi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Woodward, E. Malcolm S"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Boyd, Philip W."}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Furuya, Ken"}],"nameIdentifiers":[{}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article"}]},"item_title":"Cross-basin differences in the nutrient assimilation characteristics of induced phytoplankton blooms in the subtropical Pacific waters","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Cross-basin differences in the nutrient assimilation characteristics of induced phytoplankton blooms in the subtropical Pacific waters"}]},"item_type_id":"3","owner":"15","path":["337","338","339","449","505"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-06-14"},"publish_date":"2021-06-14","publish_status":"0","recid":"2141","relation_version_is_last":true,"title":["Cross-basin differences in the nutrient assimilation characteristics of induced phytoplankton blooms in the subtropical Pacific waters"],"weko_creator_id":"15","weko_shared_id":-1},"updated":"2023-07-25T10:36:14.192362+00:00"}