Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling

Submarine canyons are important conduits of sediment and organic matter to deep-sea environments, mainly during high-energy natural events such as storms, river floods, or dense shelf water cascading, but also due to human activities such as bottom trawling. The contributions of natural and trawling...

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Autores: Paradis, Sarah|||0000-0002-7035-0538, Arjona-Camas, Marta|||0000-0002-0862-856X, Goñi, Miguel|||0000-0001-7682-8064, Palanques, Albert|||0000-0003-2544-2342, Masqué Barri, Pere|||0000-0002-1789-320X, Puig i Casado, Pere|||0000-0002-6607-9642
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:269312
Acesso em linha:https://ddd.uab.cat/record/269312
https://dx.doi.org/urn:doi:10.3389/fmars.2022.1017052
Access Level:acceso abierto
Palavra-chave:Biomarkers
Bottom trawling
Carbon cycle
NW Mediterranean
Sediment transport
Storms
Submarine canyon
Surface sediment
SDG 14 - Life Below Water
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spelling Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawlingParadis, Sarah|||0000-0002-7035-0538Arjona-Camas, Marta|||0000-0002-0862-856XGoñi, Miguel|||0000-0001-7682-8064Palanques, Albert|||0000-0003-2544-2342Masqué Barri, Pere|||0000-0002-1789-320XPuig i Casado, Pere|||0000-0002-6607-9642BiomarkersBottom trawlingCarbon cycleNW MediterraneanSediment transportStormsSubmarine canyonSurface sedimentSDG 14 - Life Below WaterSubmarine canyons are important conduits of sediment and organic matter to deep-sea environments, mainly during high-energy natural events such as storms, river floods, or dense shelf water cascading, but also due to human activities such as bottom trawling. The contributions of natural and trawling-induced sediment and organic matter inputs into Palamós Canyon (NW Mediterranean) were assessed from three instrumented moorings deployed in the axis and northern flank of the canyon covering the trawling closure (February) and the trawling season (March-December) of 2017. During the trawling closure, large sediment fluxes with high contents of labile marine organic matter content were registered in the canyon axis, associated to storm resuspension on the shelf that coincided with dense shelf water cascading and high surface water productivity. Although no major natural sediment transport events occurred during the following spring and summer months, near-daily trawling-induced sediment gravity flows were recordedin the northern flank mooring, placed directly below a fishing ground, which sometimes reached the canyon axis. Compositionally, the organic matter transferred by trawling resuspension was impoverished in the most labile biomarkers (fatty acids, amino acids, and dicarboxylic acids) and had a high degree of degradation, which was similar to surficial sediment from the adjacent fishing ground. Trawling resuspended particles masked the transfer of organic matter enriched in labile biomarkers that naturally occur during the quiescent summer months. Overall, bottom trawling enhances the magnitude of particle fluxes while modifying its organic carbon composition, increasing the re-exposure and transfer of degraded organic carbon and potentially affecting benthic communities that rely on the arrival of fresh organic matter. 22022-01-0120222022-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/269312https://dx.doi.org/urn:doi:10.3389/fmars.2022.1017052reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 CTM2015-65142-RAgència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-663Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-1588Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 RTI2018-096434-B-I00Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 CEX2019-000940-MMinisterio de Ciencia e Innovación https://doi.org/10.13039/501100004837 CEX2019-000928-Sopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2693122026-06-06T12:50:31Z
dc.title.none.fl_str_mv Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling
title Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling
spellingShingle Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling
Paradis, Sarah|||0000-0002-7035-0538
Biomarkers
Bottom trawling
Carbon cycle
NW Mediterranean
Sediment transport
Storms
Submarine canyon
Surface sediment
SDG 14 - Life Below Water
title_short Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling
title_full Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling
title_fullStr Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling
title_full_unstemmed Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling
title_sort Contrasting particle fluxes and composition in a submarine canyon affected by natural sediment transport events and bottom trawling
dc.creator.none.fl_str_mv Paradis, Sarah|||0000-0002-7035-0538
Arjona-Camas, Marta|||0000-0002-0862-856X
Goñi, Miguel|||0000-0001-7682-8064
Palanques, Albert|||0000-0003-2544-2342
Masqué Barri, Pere|||0000-0002-1789-320X
Puig i Casado, Pere|||0000-0002-6607-9642
author Paradis, Sarah|||0000-0002-7035-0538
author_facet Paradis, Sarah|||0000-0002-7035-0538
Arjona-Camas, Marta|||0000-0002-0862-856X
Goñi, Miguel|||0000-0001-7682-8064
Palanques, Albert|||0000-0003-2544-2342
Masqué Barri, Pere|||0000-0002-1789-320X
Puig i Casado, Pere|||0000-0002-6607-9642
author_role author
author2 Arjona-Camas, Marta|||0000-0002-0862-856X
Goñi, Miguel|||0000-0001-7682-8064
Palanques, Albert|||0000-0003-2544-2342
Masqué Barri, Pere|||0000-0002-1789-320X
Puig i Casado, Pere|||0000-0002-6607-9642
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Biomarkers
Bottom trawling
Carbon cycle
NW Mediterranean
Sediment transport
Storms
Submarine canyon
Surface sediment
SDG 14 - Life Below Water
topic Biomarkers
Bottom trawling
Carbon cycle
NW Mediterranean
Sediment transport
Storms
Submarine canyon
Surface sediment
SDG 14 - Life Below Water
description Submarine canyons are important conduits of sediment and organic matter to deep-sea environments, mainly during high-energy natural events such as storms, river floods, or dense shelf water cascading, but also due to human activities such as bottom trawling. The contributions of natural and trawling-induced sediment and organic matter inputs into Palamós Canyon (NW Mediterranean) were assessed from three instrumented moorings deployed in the axis and northern flank of the canyon covering the trawling closure (February) and the trawling season (March-December) of 2017. During the trawling closure, large sediment fluxes with high contents of labile marine organic matter content were registered in the canyon axis, associated to storm resuspension on the shelf that coincided with dense shelf water cascading and high surface water productivity. Although no major natural sediment transport events occurred during the following spring and summer months, near-daily trawling-induced sediment gravity flows were recordedin the northern flank mooring, placed directly below a fishing ground, which sometimes reached the canyon axis. Compositionally, the organic matter transferred by trawling resuspension was impoverished in the most labile biomarkers (fatty acids, amino acids, and dicarboxylic acids) and had a high degree of degradation, which was similar to surficial sediment from the adjacent fishing ground. Trawling resuspended particles masked the transfer of organic matter enriched in labile biomarkers that naturally occur during the quiescent summer months. Overall, bottom trawling enhances the magnitude of particle fluxes while modifying its organic carbon composition, increasing the re-exposure and transfer of degraded organic carbon and potentially affecting benthic communities that rely on the arrival of fresh organic matter.
publishDate 2022
dc.date.none.fl_str_mv 2
2022-01-01
2022
2022-01-01
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/269312
https://dx.doi.org/urn:doi:10.3389/fmars.2022.1017052
url https://ddd.uab.cat/record/269312
https://dx.doi.org/urn:doi:10.3389/fmars.2022.1017052
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CTM2015-65142-R
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-663
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-1588
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 RTI2018-096434-B-I00
Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 CEX2019-000940-M
Ministerio de Ciencia e Innovación https://doi.org/10.13039/501100004837 CEX2019-000928-S
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
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://creativecommons.org/licenses/by/4.0/
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
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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