Role of slowly settling particles in the ocean carbon cycle

Here we present results from sediment traps that separate particles as a function of their settling velocity, which were moored in the Canary Current region over a 1.5-year period. This study represents the longest time series using "in situ" particle settling velocity traps to date and ar...

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Autores: Alonso-González, Iván, J., Arístegui, Javier, Lee, Cindy, Sánchez-Vidal, Anna, Calafat Frau, Antoni, Fabrés, Joan, Sangrá, Pablo, Masqué Barri, Pere|||0000-0002-1789-320X
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:158285
Acceso en línea:https://ddd.uab.cat/record/158285
https://dx.doi.org/urn:doi:10.1029/2010GL043827
Access Level:acceso abierto
Palabra clave:Biological pump
Ocean carbon cycle
Settling particles
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spelling Role of slowly settling particles in the ocean carbon cycleAlonso-González, Iván, J.Arístegui, JavierLee, CindySánchez-Vidal, AnnaCalafat Frau, AntoniFabrés, JoanSangrá, PabloMasqué Barri, Pere|||0000-0002-1789-320XBiological pumpOcean carbon cycleSettling particlesHere we present results from sediment traps that separate particles as a function of their settling velocity, which were moored in the Canary Current region over a 1.5-year period. This study represents the longest time series using "in situ" particle settling velocity traps to date and are unique in providing year-round estimates. We find that, at least during half of the year in subtropical waters (the largest ocean domain), more than 60% of total particulate organic carbon is contained in slowly settling particles (0.7-11 m d⁻¹). Analyses of organic biomarkers reveal that these particles have the same degradation state, or are even fresher than rapidly sinking particles. Thus, if slowly settling particles dominate the exportable carbon pool, most organic matter would be respired in surface waters, acting as a biological source of CO₂ susceptible to exchange with the atmosphere. In the context of climate change, if the predicted changes in phytoplankton community structure occur, slowly settling particles would be favored, affecting the strength of the biological pump in the ocean. 22010-01-0120102010-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/158285https://dx.doi.org/urn:doi:10.1029/2010GL043827reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Educación y Ciencia CTM2004-06842-C03-03/MARopen accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1582852026-06-06T12:50:31Z
dc.title.none.fl_str_mv Role of slowly settling particles in the ocean carbon cycle
title Role of slowly settling particles in the ocean carbon cycle
spellingShingle Role of slowly settling particles in the ocean carbon cycle
Alonso-González, Iván, J.
Biological pump
Ocean carbon cycle
Settling particles
title_short Role of slowly settling particles in the ocean carbon cycle
title_full Role of slowly settling particles in the ocean carbon cycle
title_fullStr Role of slowly settling particles in the ocean carbon cycle
title_full_unstemmed Role of slowly settling particles in the ocean carbon cycle
title_sort Role of slowly settling particles in the ocean carbon cycle
dc.creator.none.fl_str_mv Alonso-González, Iván, J.
Arístegui, Javier
Lee, Cindy
Sánchez-Vidal, Anna
Calafat Frau, Antoni
Fabrés, Joan
Sangrá, Pablo
Masqué Barri, Pere|||0000-0002-1789-320X
author Alonso-González, Iván, J.
author_facet Alonso-González, Iván, J.
Arístegui, Javier
Lee, Cindy
Sánchez-Vidal, Anna
Calafat Frau, Antoni
Fabrés, Joan
Sangrá, Pablo
Masqué Barri, Pere|||0000-0002-1789-320X
author_role author
author2 Arístegui, Javier
Lee, Cindy
Sánchez-Vidal, Anna
Calafat Frau, Antoni
Fabrés, Joan
Sangrá, Pablo
Masqué Barri, Pere|||0000-0002-1789-320X
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Biological pump
Ocean carbon cycle
Settling particles
topic Biological pump
Ocean carbon cycle
Settling particles
description Here we present results from sediment traps that separate particles as a function of their settling velocity, which were moored in the Canary Current region over a 1.5-year period. This study represents the longest time series using "in situ" particle settling velocity traps to date and are unique in providing year-round estimates. We find that, at least during half of the year in subtropical waters (the largest ocean domain), more than 60% of total particulate organic carbon is contained in slowly settling particles (0.7-11 m d⁻¹). Analyses of organic biomarkers reveal that these particles have the same degradation state, or are even fresher than rapidly sinking particles. Thus, if slowly settling particles dominate the exportable carbon pool, most organic matter would be respired in surface waters, acting as a biological source of CO₂ susceptible to exchange with the atmosphere. In the context of climate change, if the predicted changes in phytoplankton community structure occur, slowly settling particles would be favored, affecting the strength of the biological pump in the ocean.
publishDate 2010
dc.date.none.fl_str_mv 2
2010-01-01
2010
2010-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/158285
https://dx.doi.org/urn:doi:10.1029/2010GL043827
url https://ddd.uab.cat/record/158285
https://dx.doi.org/urn:doi:10.1029/2010GL043827
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Educación y Ciencia CTM2004-06842-C03-03/MAR
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
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