DISSOLVED ORGANIC MATTER MOLECULAR FINGERPRINT OF THE WATER MASSES IN THE CAPE VERT FRONTAL ZONE
Oral communication Ocean water masses have been traditionally characterized by the thermohaline and conservative chemical properties (e.g. preformed nutrients) at their respective source regions. However, water masses also can exhibit characteristic levels of other individual compounds or emerging p...
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Centro Oceanográfico de A Coruña
2021
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ftieo:oai:repositorio.ieo.es:10508/12520 2023-05-15T13:41:25+02:00 DISSOLVED ORGANIC MATTER MOLECULAR FINGERPRINT OF THE WATER MASSES IN THE CAPE VERT FRONTAL ZONE Jerusalén-Lleó, Ester Nieto-Cid, M. (Mar) Fernández-Castro, B. (Bieito) Serrano-Catalá, T. (Teresa) Álvarez-Salgado, X.A. (Xosé Antón) 2021-06-27 http://hdl.handle.net/10508/12520 eng eng Centro Oceanográfico de A Coruña http://hdl.handle.net/10508/12520 ASLO 2021 AQUATIC SCIENCES MEETING. (22/06/2021 - 27/06/2021. Texas-USA). 2021. . En: , . Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND Dissolved organic matter DOM molecular fingerprint Ocean circulation Cape Vert frontal zone FT-ICR MS measurements Optimum multiparameter water mass analysis Characteristic molecular indices for water masses marine environment benzene resonance formulae biogeochemistry conferenceObject 2021 ftieo 2022-07-26T23:49:25Z Oral communication Ocean water masses have been traditionally characterized by the thermohaline and conservative chemical properties (e.g. preformed nutrients) at their respective source regions. However, water masses also can exhibit characteristic levels of other individual compounds or emerging properties associated to compound classes. In this regard, the objective of this contribution is to characterize the dissolved organic matter (DOM) molecular fingerprint of the water masses present in the Cape Vert Frontal Zone (CVFZ). For this purpose, a set of 133 samples was collected from the surface to 4000 m depth in the CVFZ during the FLUXES I cruise (12 July - 11 August 2017) and isolated by solid-phase extraction (SPE), using styrene divinyl benzene polymer cartridges (PPL). The molecular analysis of these SPE-PPL extracts was performed using Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS), a method capable of identifying thousands of molecular formulae in DOM. These analyses have been combined with an optimum multiparameter (OMP) water mass analysis to obtain characteristic molecular indices for the eleven water masses present in the CVFZ, stemming from the subtropical and subpolar North and South Atlantic as well as from the Arctic and Antarctic Oceans. In particular, emerging properties such as the molecular diversity (D), mean molecular mass (MW), mean C:N ratio, aromaticity index (AI), double bond equivalent (DBE), and main molecular groups, as well as different compounds (e.g. Lignin) and individual heteroatoms were quantified. ASLO Conference Object Antarc* Antarctic Arctic Instituto Español de Oceanografía: e-IEO Antarctic Arctic |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
topic |
Dissolved organic matter DOM molecular fingerprint Ocean circulation Cape Vert frontal zone FT-ICR MS measurements Optimum multiparameter water mass analysis Characteristic molecular indices for water masses marine environment benzene resonance formulae biogeochemistry |
spellingShingle |
Dissolved organic matter DOM molecular fingerprint Ocean circulation Cape Vert frontal zone FT-ICR MS measurements Optimum multiparameter water mass analysis Characteristic molecular indices for water masses marine environment benzene resonance formulae biogeochemistry Jerusalén-Lleó, Ester Nieto-Cid, M. (Mar) Fernández-Castro, B. (Bieito) Serrano-Catalá, T. (Teresa) Álvarez-Salgado, X.A. (Xosé Antón) DISSOLVED ORGANIC MATTER MOLECULAR FINGERPRINT OF THE WATER MASSES IN THE CAPE VERT FRONTAL ZONE |
topic_facet |
Dissolved organic matter DOM molecular fingerprint Ocean circulation Cape Vert frontal zone FT-ICR MS measurements Optimum multiparameter water mass analysis Characteristic molecular indices for water masses marine environment benzene resonance formulae biogeochemistry |
description |
Oral communication Ocean water masses have been traditionally characterized by the thermohaline and conservative chemical properties (e.g. preformed nutrients) at their respective source regions. However, water masses also can exhibit characteristic levels of other individual compounds or emerging properties associated to compound classes. In this regard, the objective of this contribution is to characterize the dissolved organic matter (DOM) molecular fingerprint of the water masses present in the Cape Vert Frontal Zone (CVFZ). For this purpose, a set of 133 samples was collected from the surface to 4000 m depth in the CVFZ during the FLUXES I cruise (12 July - 11 August 2017) and isolated by solid-phase extraction (SPE), using styrene divinyl benzene polymer cartridges (PPL). The molecular analysis of these SPE-PPL extracts was performed using Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS), a method capable of identifying thousands of molecular formulae in DOM. These analyses have been combined with an optimum multiparameter (OMP) water mass analysis to obtain characteristic molecular indices for the eleven water masses present in the CVFZ, stemming from the subtropical and subpolar North and South Atlantic as well as from the Arctic and Antarctic Oceans. In particular, emerging properties such as the molecular diversity (D), mean molecular mass (MW), mean C:N ratio, aromaticity index (AI), double bond equivalent (DBE), and main molecular groups, as well as different compounds (e.g. Lignin) and individual heteroatoms were quantified. ASLO |
format |
Conference Object |
author |
Jerusalén-Lleó, Ester Nieto-Cid, M. (Mar) Fernández-Castro, B. (Bieito) Serrano-Catalá, T. (Teresa) Álvarez-Salgado, X.A. (Xosé Antón) |
author_facet |
Jerusalén-Lleó, Ester Nieto-Cid, M. (Mar) Fernández-Castro, B. (Bieito) Serrano-Catalá, T. (Teresa) Álvarez-Salgado, X.A. (Xosé Antón) |
author_sort |
Jerusalén-Lleó, Ester |
title |
DISSOLVED ORGANIC MATTER MOLECULAR FINGERPRINT OF THE WATER MASSES IN THE CAPE VERT FRONTAL ZONE |
title_short |
DISSOLVED ORGANIC MATTER MOLECULAR FINGERPRINT OF THE WATER MASSES IN THE CAPE VERT FRONTAL ZONE |
title_full |
DISSOLVED ORGANIC MATTER MOLECULAR FINGERPRINT OF THE WATER MASSES IN THE CAPE VERT FRONTAL ZONE |
title_fullStr |
DISSOLVED ORGANIC MATTER MOLECULAR FINGERPRINT OF THE WATER MASSES IN THE CAPE VERT FRONTAL ZONE |
title_full_unstemmed |
DISSOLVED ORGANIC MATTER MOLECULAR FINGERPRINT OF THE WATER MASSES IN THE CAPE VERT FRONTAL ZONE |
title_sort |
dissolved organic matter molecular fingerprint of the water masses in the cape vert frontal zone |
publisher |
Centro Oceanográfico de A Coruña |
publishDate |
2021 |
url |
http://hdl.handle.net/10508/12520 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_relation |
http://hdl.handle.net/10508/12520 ASLO 2021 AQUATIC SCIENCES MEETING. (22/06/2021 - 27/06/2021. Texas-USA). 2021. . En: , . |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766150588270116864 |