UV sensitivity of planktonic net community production in ocean surface waters

The net plankton community metabolism of oceanic surface waters is particularly important as it more directly affects the partial pressure of CO2 in surface waters and thus the air-sea fluxes of CO2. Plankton communities in surface waters are exposed to high irradiance that includes significant ultr...

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Detalles Bibliográficos
Autores: Regaudie de Gioux, Aurore, Agustí, Susana, Duarte, Carlos M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/128106
Acceso en línea:http://hdl.handle.net/10261/128106
Access Level:acceso abierto
Palabra clave:UV
Marine
NCP
plankton
Community
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spelling UV sensitivity of planktonic net community production in ocean surface watersRegaudie de Gioux, AuroreAgustí, SusanaDuarte, Carlos M.UVMarineNCPplanktonCommunityThe net plankton community metabolism of oceanic surface waters is particularly important as it more directly affects the partial pressure of CO2 in surface waters and thus the air-sea fluxes of CO2. Plankton communities in surface waters are exposed to high irradiance that includes significant ultraviolet blue (UVB, 280-315 nm) radiation. UVB radiation affects both photosynthetic and respiration rates, increase plankton mortality rates, and other metabolic and chemical processes. Here we test the sensitivity of net community production (NCP) to UVB of planktonic communities in surface waters across contrasting regions of the ocean. We observed here that UVB radiation affects net plankton community production at the ocean surface, imposing a shift in NCP by, on average, 50% relative to the values measured when excluding partly UVB. Our results show that under full solar radiation, the metabolic balance shows the prevalence of net heterotrophic community production. The demonstration of an important effect of UVB radiation on NCP in surface waters presented here is of particular relevance in relation to the increased UVB radiation derived from the erosion of the stratospheric ozone layer. Our results encourage design future research to further our understanding of UVB effects on the metabolic balance of plankton communities. Key Points UV sensitivity of planktonic NCP ©2014. American Geophysical Union. All Rights Reserved.This research was funded by the projects RODA (CTM-2004-06842-CO3-O2) and ATOS (POL2006-00550/CTM), Humboldt-2009 project (CTM2008-02497-E), MEDEICG (CTM2009-07013), and the Malaspina-2010 expedition project funded by the CONSOLIDER Ingenio-2010 program (CSD2008-00077), all funded by the National Plan of R + D of the Spanish Ministry of Science and Innovation. A.R.d.G. was supported by the EU Marie Curie EST project Metaoceans (MEST-CT-2005-019678)Peer ReviewedAmerican Geophysical UnionComisión Interministerial de Ciencia y Tecnología, CICYT (España)Ministerio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2016201620142016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/128106reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1002/2013JG002566Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1281062026-05-22T06:33:51Z
dc.title.none.fl_str_mv UV sensitivity of planktonic net community production in ocean surface waters
title UV sensitivity of planktonic net community production in ocean surface waters
spellingShingle UV sensitivity of planktonic net community production in ocean surface waters
Regaudie de Gioux, Aurore
UV
Marine
NCP
plankton
Community
title_short UV sensitivity of planktonic net community production in ocean surface waters
title_full UV sensitivity of planktonic net community production in ocean surface waters
title_fullStr UV sensitivity of planktonic net community production in ocean surface waters
title_full_unstemmed UV sensitivity of planktonic net community production in ocean surface waters
title_sort UV sensitivity of planktonic net community production in ocean surface waters
dc.creator.none.fl_str_mv Regaudie de Gioux, Aurore
Agustí, Susana
Duarte, Carlos M.
author Regaudie de Gioux, Aurore
author_facet Regaudie de Gioux, Aurore
Agustí, Susana
Duarte, Carlos M.
author_role author
author2 Agustí, Susana
Duarte, Carlos M.
author2_role author
author
dc.contributor.none.fl_str_mv Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv UV
Marine
NCP
plankton
Community
topic UV
Marine
NCP
plankton
Community
description The net plankton community metabolism of oceanic surface waters is particularly important as it more directly affects the partial pressure of CO2 in surface waters and thus the air-sea fluxes of CO2. Plankton communities in surface waters are exposed to high irradiance that includes significant ultraviolet blue (UVB, 280-315 nm) radiation. UVB radiation affects both photosynthetic and respiration rates, increase plankton mortality rates, and other metabolic and chemical processes. Here we test the sensitivity of net community production (NCP) to UVB of planktonic communities in surface waters across contrasting regions of the ocean. We observed here that UVB radiation affects net plankton community production at the ocean surface, imposing a shift in NCP by, on average, 50% relative to the values measured when excluding partly UVB. Our results show that under full solar radiation, the metabolic balance shows the prevalence of net heterotrophic community production. The demonstration of an important effect of UVB radiation on NCP in surface waters presented here is of particular relevance in relation to the increased UVB radiation derived from the erosion of the stratospheric ozone layer. Our results encourage design future research to further our understanding of UVB effects on the metabolic balance of plankton communities. Key Points UV sensitivity of planktonic NCP ©2014. American Geophysical Union. All Rights Reserved.
publishDate 2014
dc.date.none.fl_str_mv 2014
2016
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/128106
url http://hdl.handle.net/10261/128106
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1002/2013JG002566
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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