Bottom-trawling along submarine canyons impacts deep sedimentary regimes
- Autores
- Paradis, Sarah; Puig, Pere; Masqué, Pere; Juan Diáz, Xènia; Martín de Nascimento, Jacobo; Palanques, Albert
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Many studies highlight that fish trawling activities cause seafloor erosion, but the assessment of the remobilization of surface sediments and its relocation is still not well documented. These impacts were examined along the flanks and axes of three headless submarine canyons incised on the Barcelona continental margin, where trawling fleets have been operating for decades. Trawled grounds along canyon flanks presented eroded and highly reworked surface sediments resulting from the passage of heavy trawling gear. Sedimentation rates on the upper canyon axes tripled and quadrupled its natural (i.e. pre-industrialization) values after a substantial increase in total horsepower of the operating trawling fleets between 1960s and 1970s. These impacts affected the upper canyon reaches next to fishing grounds, where sediment resuspended by trawling can be transported towards the canyon axes. This study highlights that bottom trawling has the capacity to alter natural sedimentary environments by promoting sediment-starved canyon flanks, and by enhancing sedimentation rates along the contiguous axes, independently of canyons´ morphology. Considering the global mechanisation and offshore expansion of bottom trawling fisheries since the mid-20th century, these sedimentary alterations may occur in many trawled canyons worldwide, with further ecological impacts on the trophic status of these non-resilient benthic communities.
Fil: Paradis, Sarah. Universitat Autònoma de Barcelona; España
Fil: Puig, Pere. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Masqué, Pere. University of Western Australia; Australia. Universitat Autònoma de Barcelona; España. Edith Cowan University; Australia
Fil: Juan Diáz, Xènia. Universitat Autònoma de Barcelona; España
Fil: Martín de Nascimento, Jacobo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Palanques, Albert. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España - Materia
-
Continental Margins
Submarine Canyons
Trawling - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/63374
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Bottom-trawling along submarine canyons impacts deep sedimentary regimesParadis, SarahPuig, PereMasqué, PereJuan Diáz, XèniaMartín de Nascimento, JacoboPalanques, AlbertContinental MarginsSubmarine CanyonsTrawlinghttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Many studies highlight that fish trawling activities cause seafloor erosion, but the assessment of the remobilization of surface sediments and its relocation is still not well documented. These impacts were examined along the flanks and axes of three headless submarine canyons incised on the Barcelona continental margin, where trawling fleets have been operating for decades. Trawled grounds along canyon flanks presented eroded and highly reworked surface sediments resulting from the passage of heavy trawling gear. Sedimentation rates on the upper canyon axes tripled and quadrupled its natural (i.e. pre-industrialization) values after a substantial increase in total horsepower of the operating trawling fleets between 1960s and 1970s. These impacts affected the upper canyon reaches next to fishing grounds, where sediment resuspended by trawling can be transported towards the canyon axes. This study highlights that bottom trawling has the capacity to alter natural sedimentary environments by promoting sediment-starved canyon flanks, and by enhancing sedimentation rates along the contiguous axes, independently of canyons´ morphology. Considering the global mechanisation and offshore expansion of bottom trawling fisheries since the mid-20th century, these sedimentary alterations may occur in many trawled canyons worldwide, with further ecological impacts on the trophic status of these non-resilient benthic communities.Fil: Paradis, Sarah. Universitat Autònoma de Barcelona; EspañaFil: Puig, Pere. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Masqué, Pere. University of Western Australia; Australia. Universitat Autònoma de Barcelona; España. Edith Cowan University; AustraliaFil: Juan Diáz, Xènia. Universitat Autònoma de Barcelona; EspañaFil: Martín de Nascimento, Jacobo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Palanques, Albert. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaNature Publishing Group2017-02-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63374Paradis, Sarah; Puig, Pere; Masqué, Pere; Juan Diáz, Xènia; Martín de Nascimento, Jacobo; et al.; Bottom-trawling along submarine canyons impacts deep sedimentary regimes; Nature Publishing Group; Scientific Reports; 7; 24-2-2017; 1-122045-2322CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1038/srep43332info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/srep43332info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:39Zoai:ri.conicet.gov.ar:11336/63374instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:46:39.741CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Bottom-trawling along submarine canyons impacts deep sedimentary regimes |
title |
Bottom-trawling along submarine canyons impacts deep sedimentary regimes |
spellingShingle |
Bottom-trawling along submarine canyons impacts deep sedimentary regimes Paradis, Sarah Continental Margins Submarine Canyons Trawling |
title_short |
Bottom-trawling along submarine canyons impacts deep sedimentary regimes |
title_full |
Bottom-trawling along submarine canyons impacts deep sedimentary regimes |
title_fullStr |
Bottom-trawling along submarine canyons impacts deep sedimentary regimes |
title_full_unstemmed |
Bottom-trawling along submarine canyons impacts deep sedimentary regimes |
title_sort |
Bottom-trawling along submarine canyons impacts deep sedimentary regimes |
dc.creator.none.fl_str_mv |
Paradis, Sarah Puig, Pere Masqué, Pere Juan Diáz, Xènia Martín de Nascimento, Jacobo Palanques, Albert |
author |
Paradis, Sarah |
author_facet |
Paradis, Sarah Puig, Pere Masqué, Pere Juan Diáz, Xènia Martín de Nascimento, Jacobo Palanques, Albert |
author_role |
author |
author2 |
Puig, Pere Masqué, Pere Juan Diáz, Xènia Martín de Nascimento, Jacobo Palanques, Albert |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Continental Margins Submarine Canyons Trawling |
topic |
Continental Margins Submarine Canyons Trawling |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Many studies highlight that fish trawling activities cause seafloor erosion, but the assessment of the remobilization of surface sediments and its relocation is still not well documented. These impacts were examined along the flanks and axes of three headless submarine canyons incised on the Barcelona continental margin, where trawling fleets have been operating for decades. Trawled grounds along canyon flanks presented eroded and highly reworked surface sediments resulting from the passage of heavy trawling gear. Sedimentation rates on the upper canyon axes tripled and quadrupled its natural (i.e. pre-industrialization) values after a substantial increase in total horsepower of the operating trawling fleets between 1960s and 1970s. These impacts affected the upper canyon reaches next to fishing grounds, where sediment resuspended by trawling can be transported towards the canyon axes. This study highlights that bottom trawling has the capacity to alter natural sedimentary environments by promoting sediment-starved canyon flanks, and by enhancing sedimentation rates along the contiguous axes, independently of canyons´ morphology. Considering the global mechanisation and offshore expansion of bottom trawling fisheries since the mid-20th century, these sedimentary alterations may occur in many trawled canyons worldwide, with further ecological impacts on the trophic status of these non-resilient benthic communities. Fil: Paradis, Sarah. Universitat Autònoma de Barcelona; España Fil: Puig, Pere. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España Fil: Masqué, Pere. University of Western Australia; Australia. Universitat Autònoma de Barcelona; España. Edith Cowan University; Australia Fil: Juan Diáz, Xènia. Universitat Autònoma de Barcelona; España Fil: Martín de Nascimento, Jacobo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Palanques, Albert. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España |
description |
Many studies highlight that fish trawling activities cause seafloor erosion, but the assessment of the remobilization of surface sediments and its relocation is still not well documented. These impacts were examined along the flanks and axes of three headless submarine canyons incised on the Barcelona continental margin, where trawling fleets have been operating for decades. Trawled grounds along canyon flanks presented eroded and highly reworked surface sediments resulting from the passage of heavy trawling gear. Sedimentation rates on the upper canyon axes tripled and quadrupled its natural (i.e. pre-industrialization) values after a substantial increase in total horsepower of the operating trawling fleets between 1960s and 1970s. These impacts affected the upper canyon reaches next to fishing grounds, where sediment resuspended by trawling can be transported towards the canyon axes. This study highlights that bottom trawling has the capacity to alter natural sedimentary environments by promoting sediment-starved canyon flanks, and by enhancing sedimentation rates along the contiguous axes, independently of canyons´ morphology. Considering the global mechanisation and offshore expansion of bottom trawling fisheries since the mid-20th century, these sedimentary alterations may occur in many trawled canyons worldwide, with further ecological impacts on the trophic status of these non-resilient benthic communities. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-02-24 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/63374 Paradis, Sarah; Puig, Pere; Masqué, Pere; Juan Diáz, Xènia; Martín de Nascimento, Jacobo; et al.; Bottom-trawling along submarine canyons impacts deep sedimentary regimes; Nature Publishing Group; Scientific Reports; 7; 24-2-2017; 1-12 2045-2322 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/63374 |
identifier_str_mv |
Paradis, Sarah; Puig, Pere; Masqué, Pere; Juan Diáz, Xènia; Martín de Nascimento, Jacobo; et al.; Bottom-trawling along submarine canyons impacts deep sedimentary regimes; Nature Publishing Group; Scientific Reports; 7; 24-2-2017; 1-12 2045-2322 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1038/srep43332 info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/srep43332 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Nature Publishing Group |
publisher.none.fl_str_mv |
Nature Publishing Group |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1842268809197518848 |
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13.13397 |