A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project

A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project

2018 Ocean Sciences Meeting, 11-16 February, in Portland, Oregon

Saved in:
Bibliographic Details
Main Authors: Lo Iacono, Claudio, Puig, Pere, Paradis Vilar, Sarah, Pusceddu, Antonio, Russo, Tommaso, Masqué, Pere, ISLAND Cruise Team
Format: póster de congreso biblioteca
Published: American Geophysical Union 2018-02-11
Online Access:http://hdl.handle.net/10261/185944
Tags: Add Tag
No Tags, Be the first to tag this record!
id dig-icm-es-10261-185944
record_format koha
spelling dig-icm-es-10261-1859442019-07-12T07:11:45Z A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project Lo Iacono, Claudio Puig, Pere Paradis Vilar, Sarah Pusceddu, Antonio Russo, Tommaso Masqué, Pere ISLAND Cruise Team 2018 Ocean Sciences Meeting, 11-16 February, in Portland, Oregon Industrial bottom trawl fishery is among the human activities with most impact on deep-sea ecosystems, due to its widespread geographical distribution and to its strong effects on renewable natural resources. One of the main goals of the EU Euforfleet-2 Project ISLAND (ExplorIng SiciLian CAnyoN Dynamics) was to explore the role of bottom trawling in altering the natural seafloor integrity at nested spatial and temporal scales. This holistic approach was adopted along the NW Sicilian margin (southern Mediterranean) across a depth range of 200-800 m. It spanned from the analysis of the seafloor complexity and related benthic habitats, the quantification of sedimentation rates and organic carbon content in surface sediments, up to monitoring the near-bottom water turbidity and the formation of nepheloid layers induced by on-going fishing activities. Remote sensing data and samples were collected based on the distribution of the trawling effort averaged from the VMS data (Vessel Monitoring System) analzyed over a period of 6 years (2009-2015). Selected areas with null, low and high fishing effort were explored and sampled through Multi Beam mapping, ROV dives, sediment cores, hydrographic profiling and instrumented mooring observations. Results showed a potential impact on the large scale seascape heterogeneity, smoothing the morphology of sediment-starved small scale gullies on regions undergoing the maximum effort. ROV videos showed differences in the habitat complexity between adjacent regions with different trawling effort, with impacted areas displaying a strongly reduced amount of benthic species along up to 80 cm deep trawl marks. Core analysis revealed that trawled open slope sectors present highly eroded sedimentary bottoms, significantly depleted of labile organic matter, whereas trawled submarine canyons revealed enhanced sedimentation rates due to resuspension processes generated by the trawlers. Increased water turbidity related to trawling activities was recorded both by hydrographic sections and by time series observations collected within a submarine canyon, downslope the fishing grounds. These compelling evidences suggest that sediment dynamics along the NW Sicilian margin are largely affected by bottom trawling activities, with an evident impact at different spatial and temporal scales Peer Reviewed 2019-07-11T11:14:19Z 2019-07-11T11:14:19Z 2018-02-11 2019-07-11T11:14:19Z póster de congreso http://purl.org/coar/resource_type/c_6670 2018 Ocean Sciences Meeting (2018) http://hdl.handle.net/10261/185944 https://agu.confex.com/agu/os18/meetingapp.cgi/Paper/306320 Sí none American Geophysical Union Association for the Sciences of Limnology and Oceanography
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
description 2018 Ocean Sciences Meeting, 11-16 February, in Portland, Oregon
format póster de congreso
author Lo Iacono, Claudio
Puig, Pere
Paradis Vilar, Sarah
Pusceddu, Antonio
Russo, Tommaso
Masqué, Pere
ISLAND Cruise Team
spellingShingle Lo Iacono, Claudio
Puig, Pere
Paradis Vilar, Sarah
Pusceddu, Antonio
Russo, Tommaso
Masqué, Pere
ISLAND Cruise Team
A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project
author_facet Lo Iacono, Claudio
Puig, Pere
Paradis Vilar, Sarah
Pusceddu, Antonio
Russo, Tommaso
Masqué, Pere
ISLAND Cruise Team
author_sort Lo Iacono, Claudio
title A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project
title_short A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project
title_full A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project
title_fullStr A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project
title_full_unstemmed A multi-scale approach in the study of trawling-induced impact on the seafloor. Examples from the EU ISLAND Project
title_sort multi-scale approach in the study of trawling-induced impact on the seafloor. examples from the eu island project
publisher American Geophysical Union
publishDate 2018-02-11
url http://hdl.handle.net/10261/185944
work_keys_str_mv AT loiaconoclaudio amultiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT puigpere amultiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT paradisvilarsarah amultiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT puscedduantonio amultiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT russotommaso amultiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT masquepere amultiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT islandcruiseteam amultiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT loiaconoclaudio multiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT puigpere multiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT paradisvilarsarah multiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT puscedduantonio multiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT russotommaso multiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT masquepere multiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
AT islandcruiseteam multiscaleapproachinthestudyoftrawlinginducedimpactontheseafloorexamplesfromtheeuislandproject
_version_ 1777666961534091264

Similar Items