Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)

22 pages, 12 figures, 2 tables.-- Dataset https://doi.org/10.20350/digitalCSIC/13748

Detalhes bibliográficos
Autores: Arjona-Camas, Marta, Puig, Pere, Palanques, Albert, Durán, Ruth, White, Martin, Paradis Vilar, Sarah, Emelianov, Mikhail
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2021
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/255668
Acesso em linha:http://hdl.handle.net/10261/255668
Access Level:Acceso aberto
Palavra-chave:Palamós Canyon
Dense shelf water cascading (DSWC)
Bottom trawling
Sediment transport
Nepheloid structure
NW Mediterranean
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spelling Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)Arjona-Camas, MartaPuig, PerePalanques, AlbertDurán, RuthWhite, MartinParadis Vilar, SarahEmelianov, MikhailPalamós CanyonDense shelf water cascading (DSWC)Bottom trawlingSediment transportNepheloid structureNW Mediterranean22 pages, 12 figures, 2 tables.-- Dataset https://doi.org/10.20350/digitalCSIC/13748Increases of water turbidity and suspended sediment transport in submarine canyons have been associated with high-energy events such as storms, river floods and dense shelf water cascading (DSWC), and occasionally with bottom trawling along canyon flanks and rims. To assess the variations on the water column turbidity and sediment transport in the Palamós Canyon linked to both natural and trawling-induced processes, an autonomous hydrographic profiler, as well as a near-bottom current meter and a turbidimeter were deployed in the canyon axis (929 m depth) from February to June 2017, covering a trawling closure (February) and trawling activities (March-June). Periods of enhanced water turbidity during the trawling closure were mostly associated with storms and DSWC events, transporting turbid dense waters into the canyon. In absence of such events, the water column displayed low suspended sediment concentrations (~ 0.3 mg L− 1) until the trawling season began, when particulate matter detachments, ranging between > 1 mg L− 1 and 3.8 mg L− 1, were observed at the water depths where the trawling grounds are found. During the trawling closure, high near-bottom suspended sediment fluxes (35–44 g m− 2 s− 1) were sporadically registered at ~  920 m depth associated with a major storm and DSWC event. Smaller but more frequent increases of near-bottom suspended sediment fluxes (0.1–1.4 g m− 2 s− 1) were recorded during trawling activities. Despite these smaller trawling-induced suspended sediment fluxes, 30 days of continuous bottom trawling activity transported a total amount of 40 kg m− 2, of similar magnitude to that generated by a major DSWC event (50 kg m− 2). Since bottom trawling in Palamós Canyon is practiced on a daily basis throughout the year, a much larger contribution of anthropogenically derived water turbidity and suspended sediment transport can be expectedThis work has been supported by the ABIDES (CTM2015-65142) Spanish Project and by the autonomous government of Catalonia grants 2017 SGR 863 and 2017 SGR 1241, as well as by the TrawledSeas Project receiving funding from the European Union’s Horizon 2020 Research and Innovation programme under a MSCA grant agreement (No. 867471). M. Arjona-Camas is supported by a predoctoral FPI grant from the Spanish Ministry of Economy, Industry and CompetitivenessWith the institutional support of the ‘Severo OchoaCentre of Excellence’ accreditation (CEX2019-000928-S)Peer reviewedSpringer NatureMinisterio de Economía y Competitividad (España)Generalitat de CatalunyaEuropean CommissionMinisterio de Economía, Industria y Competitividad (España)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202120212021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/255668reponame: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/CTM2015-65142info:eu-repo/grantAgreement/EC/H2020/867471https://doi.org/10.1007/s11001-021-09457-7Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2556682026-05-22T06:33:51Z
dc.title.none.fl_str_mv Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)
title Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)
spellingShingle Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)
Arjona-Camas, Marta
Palamós Canyon
Dense shelf water cascading (DSWC)
Bottom trawling
Sediment transport
Nepheloid structure
NW Mediterranean
title_short Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)
title_full Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)
title_fullStr Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)
title_full_unstemmed Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)
title_sort Natural vs. trawling-induced water turbidity and suspended sediment transport variability within the Palamós Canyon (NW Mediterranean)
dc.creator.none.fl_str_mv Arjona-Camas, Marta
Puig, Pere
Palanques, Albert
Durán, Ruth
White, Martin
Paradis Vilar, Sarah
Emelianov, Mikhail
author Arjona-Camas, Marta
author_facet Arjona-Camas, Marta
Puig, Pere
Palanques, Albert
Durán, Ruth
White, Martin
Paradis Vilar, Sarah
Emelianov, Mikhail
author_role author
author2 Puig, Pere
Palanques, Albert
Durán, Ruth
White, Martin
Paradis Vilar, Sarah
Emelianov, Mikhail
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Generalitat de Catalunya
European Commission
Ministerio de Economía, Industria y Competitividad (España)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Palamós Canyon
Dense shelf water cascading (DSWC)
Bottom trawling
Sediment transport
Nepheloid structure
NW Mediterranean
topic Palamós Canyon
Dense shelf water cascading (DSWC)
Bottom trawling
Sediment transport
Nepheloid structure
NW Mediterranean
description 22 pages, 12 figures, 2 tables.-- Dataset https://doi.org/10.20350/digitalCSIC/13748
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
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/10261/255668
url http://hdl.handle.net/10261/255668
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/CTM2015-65142
info:eu-repo/grantAgreement/EC/H2020/867471
https://doi.org/10.1007/s11001-021-09457-7
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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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