Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean)

Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean)

International Conference on Seafloor Forms, Processes and Evolution, 4-6 July 2022, Valletta, Malta

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Main Authors: Arjona-Camas, Marta, Lo Iacono, Claudio, Puig, Pere, Russo, Tommaso, Palanques, Albert
Format: comunicación de congreso biblioteca
Language:English
Published: 2022-07-04
Subjects:Bottom trawling, Turbidity, Nepheloid layers, Sedimentary dynamics, Submarine canyons, Gulf of Palermo, SW Mediterranean, End poverty in all its forms everywhere,
Online Access:http://hdl.handle.net/10261/333888
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spelling dig-icm-es-10261-3338882023-08-24T11:01:14Z Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean) Arjona-Camas, Marta Lo Iacono, Claudio Puig, Pere Russo, Tommaso Palanques, Albert Bottom trawling Turbidity Nepheloid layers Sedimentary dynamics Submarine canyons Gulf of Palermo SW Mediterranean End poverty in all its forms everywhere International Conference on Seafloor Forms, Processes and Evolution, 4-6 July 2022, Valletta, Malta There is increasing evidence that bottom trawling within and around submarine canyons can alter their natural sedimentary dynamics. This anthropogenic activity can resuspend bottom sediments and favor their transference from fishing grounds towards deeper regions, forming nepheloid layers with high concentrations of particulate matter at different water depths. However, studies addressing this topic are still scarce and mainly devoted to the NW Mediterranean. In the Gulf of Palermo (SW Mediterranean), bottom trawling occurs on the outer shelf and on the upper continental slope, but mainly concentrates within the Oreto Canyon. The temporal evolution of the sediment transport in the lower part of the Oreto Canyon was assessed by analyzing 5 months of moored turbidity and currentmeter data, from July 2016 to January 2017. This study was carried out as part of the EUFP7 Eurofleets-2 ISLAND research cruise that aimed to explore Sicilian canyon morphologies, benthic habitats, and sedimentary dynamics in relation with trawling activities. Time-series analyses, combined with hydrographic data collected along the Oreto canyon axis, revealed the presence of nepheloid layers coinciding with periods of higher fishing activity within the canyon. In contrast, very low turbidity values were recorded in the hydrographic profiles collected along the nearby Eleuterio Canyon, mainly because trawling activities are not practiced within this canyon due to its rough geomorphology. Considering the global widespread of bottom trawling, similar alterations of the contemporary sediment transport mechanisms could be expected in other trawled canyons elsewhere, alongside with the ecological consequences that may arise from this human activity. Peer reviewed 2023-08-24T11:00:44Z 2023-08-24T11:00:44Z 2022-07-04 comunicación de congreso International Conference on Seafloor Forms, Processes and Evolution (2022) http://hdl.handle.net/10261/333888 en Sí none
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
language English
topic Bottom trawling
Turbidity
Nepheloid layers
Sedimentary dynamics
Submarine canyons
Gulf of Palermo
SW Mediterranean
End poverty in all its forms everywhere
Bottom trawling
Turbidity
Nepheloid layers
Sedimentary dynamics
Submarine canyons
Gulf of Palermo
SW Mediterranean
End poverty in all its forms everywhere
spellingShingle Bottom trawling
Turbidity
Nepheloid layers
Sedimentary dynamics
Submarine canyons
Gulf of Palermo
SW Mediterranean
End poverty in all its forms everywhere
Bottom trawling
Turbidity
Nepheloid layers
Sedimentary dynamics
Submarine canyons
Gulf of Palermo
SW Mediterranean
End poverty in all its forms everywhere
Arjona-Camas, Marta
Lo Iacono, Claudio
Puig, Pere
Russo, Tommaso
Palanques, Albert
Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean)
description International Conference on Seafloor Forms, Processes and Evolution, 4-6 July 2022, Valletta, Malta
format comunicación de congreso
topic_facet Bottom trawling
Turbidity
Nepheloid layers
Sedimentary dynamics
Submarine canyons
Gulf of Palermo
SW Mediterranean
End poverty in all its forms everywhere
author Arjona-Camas, Marta
Lo Iacono, Claudio
Puig, Pere
Russo, Tommaso
Palanques, Albert
author_facet Arjona-Camas, Marta
Lo Iacono, Claudio
Puig, Pere
Russo, Tommaso
Palanques, Albert
author_sort Arjona-Camas, Marta
title Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean)
title_short Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean)
title_full Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean)
title_fullStr Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean)
title_full_unstemmed Trawling activities impact the sediment transport mechanisms along the Oreto submarine canyon (SW Mediterranean)
title_sort trawling activities impact the sediment transport mechanisms along the oreto submarine canyon (sw mediterranean)
publishDate 2022-07-04
url http://hdl.handle.net/10261/333888
work_keys_str_mv AT arjonacamasmarta trawlingactivitiesimpactthesedimenttransportmechanismsalongtheoretosubmarinecanyonswmediterranean
AT loiaconoclaudio trawlingactivitiesimpactthesedimenttransportmechanismsalongtheoretosubmarinecanyonswmediterranean
AT puigpere trawlingactivitiesimpactthesedimenttransportmechanismsalongtheoretosubmarinecanyonswmediterranean
AT russotommaso trawlingactivitiesimpactthesedimenttransportmechanismsalongtheoretosubmarinecanyonswmediterranean
AT palanquesalbert trawlingactivitiesimpactthesedimenttransportmechanismsalongtheoretosubmarinecanyonswmediterranean
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