Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea

9 pages, 7 figures, 3 tables

Detalles Bibliográficos
Autores: Sanchez-Perez, Elvia D., Pujo-Pay, Mireille, Ortega-Retuerta, Eva, Conan, Pascal, Peters, Francesc, Marrasé, Cèlia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/218543
Acceso en línea:http://hdl.handle.net/10261/218543
Access Level:acceso abierto
Palabra clave:Dissolved organic matter
Chromophoric DOM
Fluorescent DOM
Meteorological events
Mediterranean Sea
id ES_47bdc7ea1db23de4156d5ee46fc4e350
oai_identifier_str oai:digital.csic.es:10261/218543
network_acronym_str ES
network_name_str España
repository_id_str
spelling Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean SeaSanchez-Perez, Elvia D.Pujo-Pay, MireilleOrtega-Retuerta, EvaConan, PascalPeters, FrancescMarrasé, CèliaDissolved organic matterChromophoric DOMFluorescent DOMMeteorological eventsMediterranean Sea9 pages, 7 figures, 3 tablesCoastal marine ecosystems are strongly influenced by different occasional events, such as intense winds, mixing, rain and river discharges. These events can directly or indirectly cause changes in dissolved organic matter (DOM) quality through a cascade of different biotic and abiotic processes. Changes in DOM quality are often associated with changes in DOM optical properties. Thus, examining the dynamics of chromophoric DOM (CDOM) can provide valuable information about biological and physical processes that have occurred in the ecosystem. Episodic meteorological events, particularly in temperate areas, appear very abruptly and induce very rapid responses; therefore, high time-resolved measurements are needed to capture them. We used a weekly sampling scheme to characterize DOM and nutrient dynamics in the NW Mediterranean coastal station ‘SOLA’. From February 2013 to April 2014, we measured several physical and chemical variables including temperature, salinity, inorganic nutrients, chlorophyll a dissolved organic carbon (DOC), CDOM and fluorescent DOM (FDOM). During this period, two extremely high fresh water intrusions greatly influenced the dynamics of some DOM fractions, in particular the FDOM. Inorganic nutrients and chlorophyll a showed seasonal patterns: A winter period characterized by a high nutrient concentration in surface waters favored the phytoplankton spring bloom; then, summer stratification extended until autumn. This stratification led to nutrient depletion and, consequently, lower chlorophyll a values in the photic zone. The CDOM and FDOM optical active fractions did not follow temporal trends similar to total DOC. This was likely because the potential sources and sinks of these DOM pools are microbial activity and light exposure, and these were acting simultaneously but in opposite directions. Interestingly, DOC exhibited the highest concentrations in summer, coinciding with nutrient and chlorophyll a minima. To explain this mismatch, we propose a sequence of abiotic and biotic phenomena that drive DOC temporal dynamicsThis study was supported by the MERMeX/MISTRALS project and is a contribution to international SOLAS program and the projects ANIMA (CTM2015-65720-R) and DOREMI (CTM2012-34294) from the Spanish Ministerio de Economia y Competitividad. E.D. Sánchez-Pérez would like to thank the Consejo Nacional de Ciencia y Tecnologia (CONACyT) for their financial support through a PhD fellowshipWith the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI)ElsevierMinisterio de Economía y Competitividad (España)Consejo Nacional de Ciencia y Tecnología (México)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/218543reponame: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/CTM2015-65720-Rhttps://doi.org/10.1016/j.scitotenv.2020.141190Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2185432026-05-22T06:33:51Z
dc.title.none.fl_str_mv Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
title Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
spellingShingle Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
Sanchez-Perez, Elvia D.
Dissolved organic matter
Chromophoric DOM
Fluorescent DOM
Meteorological events
Mediterranean Sea
title_short Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
title_full Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
title_fullStr Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
title_full_unstemmed Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
title_sort Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea
dc.creator.none.fl_str_mv Sanchez-Perez, Elvia D.
Pujo-Pay, Mireille
Ortega-Retuerta, Eva
Conan, Pascal
Peters, Francesc
Marrasé, Cèlia
author Sanchez-Perez, Elvia D.
author_facet Sanchez-Perez, Elvia D.
Pujo-Pay, Mireille
Ortega-Retuerta, Eva
Conan, Pascal
Peters, Francesc
Marrasé, Cèlia
author_role author
author2 Pujo-Pay, Mireille
Ortega-Retuerta, Eva
Conan, Pascal
Peters, Francesc
Marrasé, Cèlia
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Nacional de Ciencia y Tecnología (México)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Dissolved organic matter
Chromophoric DOM
Fluorescent DOM
Meteorological events
Mediterranean Sea
topic Dissolved organic matter
Chromophoric DOM
Fluorescent DOM
Meteorological events
Mediterranean Sea
description 9 pages, 7 figures, 3 tables
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
2020
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/10261/218543
url http://hdl.handle.net/10261/218543
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/CTM2015-65720-R
https://doi.org/10.1016/j.scitotenv.2020.141190
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
_version_ 1869407314570641408
score 15,81155

Similares en LA Referencia