Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean

12 pages, 5 tables, 6 figures

Detalhes bibliográficos
Autores: Ortega-Retuerta, E., Mazuecos, Ignacio P., Reche, Isabel, Gasol, Josep M., Álvarez-Salgado, Xosé Antón, Álvarez-Rodríguez, Marta, Montero, María F., Arístegui, Javier
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/180014
Acesso em linha:http://hdl.handle.net/10261/180014
Access Level:acceso abierto
Palavra-chave:Transparent exopolymer particles
Particulate organic carbon
Prokaryotes
Mediterranean Sea
Deep ocean
Biological carbon pump
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spelling Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic OceanOrtega-Retuerta, E.Mazuecos, Ignacio P.Reche, IsabelGasol, Josep M.Álvarez-Salgado, Xosé AntónÁlvarez-Rodríguez, MartaMontero, María F.Arístegui, JavierTransparent exopolymer particlesParticulate organic carbonProkaryotesMediterranean SeaDeep oceanBiological carbon pump12 pages, 5 tables, 6 figuresTransparent exopolymer particles (TEP) play a key role in ocean carbon export and structuring microbial habitats, but information on their distribution across different ocean basins and depths is scarce, particularly in the dark ocean. We measured TEP vertical distribution from the surface to bathypelagic waters in an east-to-west transect across the Mediterranean Sea (MedSea) and the adjacent North East Atlantic Ocean (NEA), and explored their physical and biological drivers. TEP ranged from 0.6 to 81.7 µg XG eq L−1, with the highest values in epipelagic waters above the deep chlorophyll maximum, and in areas near the Gibraltar and Sicily Straits. TEP were significantly related to particulate organic carbon (POC) in all basins and depth layers (epipelagic vs. deep), but the contribution of TEP to POC was higher in the NEA (85%, 79% and 67% in epi-, meso- and bathypelagic waters, respectively) than in the MedSea (from 53% to 62% in epipelagic waters, and from 45% to 48% in meso- and bathypelagic waters), coinciding with higher carbon to nitrogen particulate organic matter ratios in the NEA. The TEP connectivity between epipelagic waters and mesopelagic waters was less straightforward than between mesopelagic waters and bathypelagic waters, with a 23% and 55% of the variance in the relationship between layers explained respectively. Prokaryotes were found to be a likely net source of TEP as inferred by the significant direct relationship observed between prokaryotic heterotrophic abundance and TEP. This assumption was confirmed using experimental incubations, where prokaryotes produced TEP in concentrations ranging from 0.7 (Western Mediterranean, bathypelagic) to 232 (Western Mediterranean, mesopelagic) µg XG eq. L−1 day−1This work was funded by project HOTMIX (CTM2011-30010/MAR) of the Spanish Ministry of Economy and Innovation, co-financed with FEDER funds. Financial support for the writing of this manuscript was also provided by project FLUXES (CTM2015-69392-C3) to XAAS, MFM and JA, REMEI (CTM2015-70340-R) to JMG, and MNat Scientific Unit of Excellence (UCE.PP2017.03) to IRPeer reviewedElsevierMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/180014reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-69392-C3-2-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-70340-Rhttps://doi.org/10.1016/j.pocean.2019.03.002Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1800142026-05-22T06:33:51Z
dc.title.none.fl_str_mv Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean
title Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean
spellingShingle Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean
Ortega-Retuerta, E.
Transparent exopolymer particles
Particulate organic carbon
Prokaryotes
Mediterranean Sea
Deep ocean
Biological carbon pump
title_short Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean
title_full Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean
title_fullStr Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean
title_full_unstemmed Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean
title_sort Transparent exopolymer particle (TEP) distribution and in situ prokaryotic generation across the deep Mediterranean Sea and nearby North East Atlantic Ocean
dc.creator.none.fl_str_mv Ortega-Retuerta, E.
Mazuecos, Ignacio P.
Reche, Isabel
Gasol, Josep M.
Álvarez-Salgado, Xosé Antón
Álvarez-Rodríguez, Marta
Montero, María F.
Arístegui, Javier
author Ortega-Retuerta, E.
author_facet Ortega-Retuerta, E.
Mazuecos, Ignacio P.
Reche, Isabel
Gasol, Josep M.
Álvarez-Salgado, Xosé Antón
Álvarez-Rodríguez, Marta
Montero, María F.
Arístegui, Javier
author_role author
author2 Mazuecos, Ignacio P.
Reche, Isabel
Gasol, Josep M.
Álvarez-Salgado, Xosé Antón
Álvarez-Rodríguez, Marta
Montero, María F.
Arístegui, Javier
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Transparent exopolymer particles
Particulate organic carbon
Prokaryotes
Mediterranean Sea
Deep ocean
Biological carbon pump
topic Transparent exopolymer particles
Particulate organic carbon
Prokaryotes
Mediterranean Sea
Deep ocean
Biological carbon pump
description 12 pages, 5 tables, 6 figures
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/180014
url http://hdl.handle.net/10261/180014
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-69392-C3-2-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-70340-R
https://doi.org/10.1016/j.pocean.2019.03.002
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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score 15,812429

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