Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea

Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea

19 pages, 18 figures, 1 table, supplementary data https://doi.org/10.1016/j.margeo.2017.02.015

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Bibliographic Details
Main Authors: Payo-Payo, M., Jacinto, R.S., Lastras, G., Rabineau, M., Puig, Pere, Martín, Jacobo, Canals, Miquel, Sultan, Nabil
Other Authors: European Commission
Format: artículo biblioteca
Published: Elsevier 2017-04
Subjects:Turbidity currents, Bottom trawling, Submarine canyon, Sediment transport, Modeling, Inverse model,
Online Access:http://hdl.handle.net/10261/158598
http://dx.doi.org/10.13039/501100001665
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100002809
http://dx.doi.org/10.13039/501100011697
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spelling dig-icm-es-10261-1585982020-12-10T16:00:37Z Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea Payo-Payo, M. Jacinto, R.S. Lastras, G. Rabineau, M. Puig, Pere Martín, Jacobo Canals, Miquel Sultan, Nabil European Commission Generalitat de Catalunya Agence Nationale de la Recherche (France) Région Bretagne Turbidity currents Bottom trawling Submarine canyon Sediment transport Modeling Inverse model 19 pages, 18 figures, 1 table, supplementary data https://doi.org/10.1016/j.margeo.2017.02.015 Bottom trawling leads to recurrent sediment resuspension events over fishing grounds. Recent studies have shown how bottom trawling can drive seascape reshaping at large spatial scales and enhance sediment transport in submarine canyons, which subsequently impacts deep-sea ecosystems. Present knowledge on the transfer and accumulation of sediment flows triggered by bottom trawling is based on localized and infrequent measurements whilst a more complete picture of the process is needed. The present work focuses on the modeling of sediment transport and accumulation resulting from trawling activities in La Fonera submarine canyon, northwestern Mediterranean Sea, thus contributing to an improved assessment of trawling impacts. Based on mooring data within a canyon gully, we use an inverse model to retrieve the unknown time series of resuspension due to trawling over the fishing grounds. This resuspension is later used as forcing for the direct problem: we simulate trawling-induced flows through the canyon and provide a 3D visualization of potential trawling impacts on sediment dynamics, including the identification of the propagation patterns of sediments resuspended by trawling. Flows coming from shallower fishing grounds are funneled through canyon flank gullies towards the canyon axis, with part of the resuspended sediment reaching the continental rise out of the canyon across the open continental slope. Trawling-induced sediment flows promote sediment accumulation beyond the canyon mouth. Given the wide geographical distribution of bottom trawling, our results have far-reaching implications that go much beyond La Fonera submarine canyon. Our study represents a starting point for the assessment of the sedimentary impact of bottom trawling in deep continental margins This work was supported by various research projects: HERMIONE (226354 and CTM2010-11084-E), DOS MARES (CTM2010-21810-C03), OASIS DEL MAR—Obra Social “la Caixa”, GRACCIE-CONSOLIDER (CSD2007-00067), REDECO (CTM2008-04973-E) and ABIDES (CTM2015-65142-R). We also received support from Catalan Government Grups de Recerca Consolidats grants (2009 SGR 899 and 1305). VMS data and support were provided by the Spanish General Secretariat of Maritime Fishing (SEGEMAR). [...] MPP's work was supported by the “Laboratoire d'Excellence” LabexMER and co-funded by a state grant from the French government through Agence Nationale de la Recherche (ANR) under the «Investissements d'Avenir» Programme, reference ANR-10-LABX-19-01, and by a grant from the Regional Council of Brittany. Additional support was also provided by Actions-Marges Program (Mediterranée Occidentale). Peer Reviewed 2017-12-27T13:31:20Z 2017-12-27T13:31:20Z 2017-04 2017-12-27T13:31:22Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.margeo.2017.02.015 issn: 0025-3227 Marine Geology 386: 107-125 (2017) http://hdl.handle.net/10261/158598 10.1016/j.margeo.2017.02.015 http://dx.doi.org/10.13039/501100001665 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100002809 http://dx.doi.org/10.13039/501100011697 #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/226354 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-65142-R https://doi.org/10.1016/j.margeo.2017.02.015 Sí open Elsevier
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
topic Turbidity currents
Bottom trawling
Submarine canyon
Sediment transport
Modeling
Inverse model
Turbidity currents
Bottom trawling
Submarine canyon
Sediment transport
Modeling
Inverse model
spellingShingle Turbidity currents
Bottom trawling
Submarine canyon
Sediment transport
Modeling
Inverse model
Turbidity currents
Bottom trawling
Submarine canyon
Sediment transport
Modeling
Inverse model
Payo-Payo, M.
Jacinto, R.S.
Lastras, G.
Rabineau, M.
Puig, Pere
Martín, Jacobo
Canals, Miquel
Sultan, Nabil
Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea
description 19 pages, 18 figures, 1 table, supplementary data https://doi.org/10.1016/j.margeo.2017.02.015
author2 European Commission
author_facet European Commission
Payo-Payo, M.
Jacinto, R.S.
Lastras, G.
Rabineau, M.
Puig, Pere
Martín, Jacobo
Canals, Miquel
Sultan, Nabil
format artículo
topic_facet Turbidity currents
Bottom trawling
Submarine canyon
Sediment transport
Modeling
Inverse model
author Payo-Payo, M.
Jacinto, R.S.
Lastras, G.
Rabineau, M.
Puig, Pere
Martín, Jacobo
Canals, Miquel
Sultan, Nabil
author_sort Payo-Payo, M.
title Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea
title_short Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea
title_full Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea
title_fullStr Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea
title_full_unstemmed Numerical modeling of bottom trawling-induced sediment transport and accumulation in La Fonera submarine canyon, northwestern Mediterranean Sea
title_sort numerical modeling of bottom trawling-induced sediment transport and accumulation in la fonera submarine canyon, northwestern mediterranean sea
publisher Elsevier
publishDate 2017-04
url http://hdl.handle.net/10261/158598
http://dx.doi.org/10.13039/501100001665
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100002809
http://dx.doi.org/10.13039/501100011697
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