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dc.contributor.authorMartínez-Pérez, Alba Maríaes_ES
dc.contributor.authorNieto-Cid, Mares_ES
dc.contributor.authorOsterholz, Helenaes_ES
dc.contributor.authorCatalá, Teresa S.es_ES
dc.contributor.authorReche, Isabeles_ES
dc.contributor.authorDittmar, Thorstenes_ES
dc.contributor.authorÁlvarez-Salgado, Xosé Antónes_ES
dc.date.accessioned2017-07-03T11:14:12Z-
dc.date.available2017-07-03T11:14:12Z-
dc.date.issued2017-
dc.identifier.citationScientific Reports 7: 3436 (2017)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/152273-
dc.description11 páginas, 5 figuras, 2 tablas.-- This article is licensed under a Creative Commons Attribution 4.0 International License,es_ES
dc.description.abstractDissolved organic matter (DOM) plays a key role in global biogeochemical cycles and experiences changes in molecular composition as it undergoes processing. In the semi-closed basins of the oligotrophic Mediterranean Sea, these gradual molecular modifications can be observed in close proximity. In order to extend the spatial resolution of information on DOM molecular composition available from ultrahigh resolution mass spectrometry in this area, we relate this data to optical (fluorescence and absorption spectroscopy) measurements. Covariance between molecular formulae signal intensities and carbon-specific fluorescence intensities was examined by means of Spearman’s rank correlations. Fifty two per cent of the assigned molecular formulae were associated with at least one optical parameter, accounting for 70% of the total mass spectrum signal intensity. Furthermore, we obtained significant multiple linear regressions between optical and intensity-weighted molecular indices. The resulting regression equations were used to estimate molecular parameters such as the double bond equivalent, degradation state and occurrence of unsaturated aliphatic compounds from optical measurements. The statistical linkages between DOM molecular and optical properties illustrate that the simple, rapid and cost-efficient optical spectroscopic measurements provide valuable proxy information on the molecular composition of open ocean marine DOMes_ES
dc.description.sponsorshipThis work was funded by the project HOTMIX (grant number CTM2011-30010-C02-MAR) and the project FERMIO (MINECO, CTM2014-57334-JIN), both co-financed with FEDER funds. A.M.M.-P. was funded by a predoctoral fellowship (reference BES-2012-056175) and a short stay fellowship (reference EEBB-I-14-08926) from the Spanish Ministry of Economy and Competitiveness. M.N.-C. was supported by the CSIC Program “Junta para la Ampliación de Estudios” co-financed by the ESF (reference JAE DOC 040) and the project FERMIO (MINECO, CTM2014-57334-JIN). T.S.C. was supported by a postdoctoral contract jointly financed by the project CGL2014- 52362R of the Spanish Ministry of Economy and Competitiveness and FEDER funds and the University of Granada, and by a predoctoral fellowship (reference AP2009-2138) from the Ministerio de Educación, Cultura y Deporte.es_ES
dc.language.isoenges_ES
dc.publisherNature Publishing Groupes_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rightsopenAccesses_ES
dc.titleLinking optical and molecular signatures of dissolved organic matter in the Mediterranean Seaes_ES
dc.typeartículoes_ES
dc.identifier.doi10.1038/s41598-017-03735-4-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1038/s41598-017-03735-4es_ES
dc.identifier.e-issn2045-2322-
dc.rights.licensehttp://creativecommons.org/licenses/by/4.0/es_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.pmid28611434-
item.grantfulltextopen-
item.cerifentitytypePublications-
item.openairetypeartículo-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
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