Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance

17 pages, 10 figures, 1 table.-- Open Access under Creative Commons by Attribution Licence

Detalles Bibliográficos
Autores: Amo-Seco, Mariña, Castro, Carmen G., Villacieros-Robineau, Nicolás, Alonso Pérez, Fernando, Graña, Rocío, Rosón, Gabriel, Berg, Peter
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/246993
Acceso en línea:http://hdl.handle.net/10261/246993
Access Level:acceso abierto
Palabra clave:Benthic fluxes
Aquatic eddy covariance
Benthic chamber
Dissolved oxygen
Muddy sediments
Upwelling system
Rias
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spelling Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covarianceAmo-Seco, MariñaCastro, Carmen G.Villacieros-Robineau, NicolásAlonso Pérez, FernandoGraña, RocíoRosón, GabrielBerg, PeterBenthic fluxesAquatic eddy covarianceBenthic chamberDissolved oxygenMuddy sedimentsUpwelling systemRias17 pages, 10 figures, 1 table.-- Open Access under Creative Commons by Attribution LicenceOrganic carbon mineralization and nutrient cycling in benthic environments are critically important for their biogeochemical functioning, but are poorly understood in coastal upwelling systems. The main objective of this study was to determine benthic oxygen fluxes in a muddy sediment in the Ria de Vigo (NW Iberian coastal upwelling), by applying the aquatic eddy covariance (AEC) technique during 2 campaigns in different seasons (June and October 2017). The main drivers of benthic fluxes were studied and compared among days in each season and between seasons. The 2 campaigns were characterized by an upwelling-relaxation period followed by a downwelling event, the last of which was due to the extratropical cyclone Ophelia in October. The mean (±SD) seasonal benthic oxygen fluxes were not significantly different for the 2 campaigns despite differences in hydrodynamic and biogeochemical conditions (June: −20.9 ± 7.1 mmol m−2 d−1 vs. October: −26.5 ± 3.1 mmol m−2 d−1). Benthic fluxes were controlled by different drivers depending on the season. June was characterized by sinking labile organic material, which enhanced benthic fluxes in the downwelling event, whereas October had a significantly higher bottom velocity that stimulated the benthic fluxes. Finally, a comparison with a large benthic chamber (0.50 m2) was made during October. Despite methodological differences between AEC and chamber measurements, concurrent fluxes agreed within an acceptable margin (AEC:benthic chamber ratio = 0.78 ± 0.13; mean ± SD). Bottle incubations of water sampled from the chamber interior indicated that mineralization could explain this difference. These results show the importance of using non-invasive techniques such as AEC to resolve benthic flux dynamicsM.A.S. and N.V.R. were funded by the Spanish Government through a Formación de Profesorado Universitario fellowship (FPU 18/05051) and a Juan de la Cierva-Formación fellowship (FJCI-2017−34290), respectively. Financial support was provided by the Spanish Ministry of Science and Innovation through the i-SMALL project (CTM2014-56119-R) and by the European Union FEDER project MarRISK (0262_MarRISK_1_E). This study was also supported by grants from the US National Science Foundation (OCE-1550822, OCE-1824144) and the University of VirginiaPeer reviewedInter ResearchMinisterio de Economía y Competitividad (España)Ministerio de Ciencia e Innovación (España)European CommissionNational Science Foundation (US)University of VirginiaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202120212021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/246993reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-56119-RNo datahttps://doi.org/10.3354/meps13770Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2469932026-05-22T06:33:51Z
dc.title.none.fl_str_mv Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance
title Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance
spellingShingle Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance
Amo-Seco, Mariña
Benthic fluxes
Aquatic eddy covariance
Benthic chamber
Dissolved oxygen
Muddy sediments
Upwelling system
Rias
title_short Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance
title_full Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance
title_fullStr Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance
title_full_unstemmed Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance
title_sort Benthic oxygen fluxes in a coastal upwelling system (Ria de Vigo, NW Iberia) measured by aquatic eddy covariance
dc.creator.none.fl_str_mv Amo-Seco, Mariña
Castro, Carmen G.
Villacieros-Robineau, Nicolás
Alonso Pérez, Fernando
Graña, Rocío
Rosón, Gabriel
Berg, Peter
author Amo-Seco, Mariña
author_facet Amo-Seco, Mariña
Castro, Carmen G.
Villacieros-Robineau, Nicolás
Alonso Pérez, Fernando
Graña, Rocío
Rosón, Gabriel
Berg, Peter
author_role author
author2 Castro, Carmen G.
Villacieros-Robineau, Nicolás
Alonso Pérez, Fernando
Graña, Rocío
Rosón, Gabriel
Berg, Peter
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Ministerio de Ciencia e Innovación (España)
European Commission
National Science Foundation (US)
University of Virginia
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Benthic fluxes
Aquatic eddy covariance
Benthic chamber
Dissolved oxygen
Muddy sediments
Upwelling system
Rias
topic Benthic fluxes
Aquatic eddy covariance
Benthic chamber
Dissolved oxygen
Muddy sediments
Upwelling system
Rias
description 17 pages, 10 figures, 1 table.-- Open Access under Creative Commons by Attribution Licence
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
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/10261/246993
url http://hdl.handle.net/10261/246993
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-56119-R
No data
https://doi.org/10.3354/meps13770
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
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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