High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean)

High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean)

5th International Network for Submarine Canyon Investigation and Scientific Exchange International Symposium (INCISE), 14-18 June 2021

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Main Authors: Puig, Pere, Durán, Ruth, Fabri, Marie-Claire, Guerin, Charline, Cabrera Molina, Cecilia, Lo Iacono, Claudio, Huvenne, Veerle A.I., Bilan, Meri, Grinyó, Jordi, ABRIC cruise team
Format: comunicación de congreso biblioteca
Language:English
Published: 2021-06-16
Online Access:http://hdl.handle.net/10261/270891
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spelling dig-icm-es-10261-2708912022-07-16T02:33:03Z High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean) Puig, Pere Durán, Ruth Fabri, Marie-Claire Guerin, Charline Cabrera Molina, Cecilia Lo Iacono, Claudio Huvenne, Veerle A.I. Bilan, Meri Grinyó, Jordi ABRIC cruise team 5th International Network for Submarine Canyon Investigation and Scientific Exchange International Symposium (INCISE), 14-18 June 2021 Deep-incising canyons are characterized by steep terrains, containing vertical to overhanging bedrock exposures, which represent important substrates where biologically diverse benthic ecosystems, including cold-water corals (CWCs), may settle and develop. During the ABRIC and 3DHAB projects, and using information acquired during the previous ABIDES project, a detailed mapping and characterization of steep seafloor habitats in Blanes Canyon (NW Mediterranean) was accomplished with the mapping tools offered by the Ifremer hybrid remotely operated vehicle (H-ROV) Ariane. Based on the hull-mounted, shipboard multibeam seafloor digital terrain model (25 m grid) from this canyon, three study sites ranging from 460 to 870 m water depth were selected and mapped with unprecedented detail (i.e., 0.5 m resolution) using Ariane’s forward tilted (45º) multibeam system. They included: i) a narrow gorge at the head of the canyon, ii) a steep wall at the western canyon flank, and iii) a canyon tributary on the eastern canyon flank. This contribution aims to provide the preliminary information acquired during these fine-scale morphological surveys, and to highlight the strong potential and capabilities of such robotic mapping tool. Several detailed morphological structures and features could be identified, which provided spatial information of the outcropping strata incised by the canyon, where benthic communities mostly develop, insights on the mechanisms contributing to the canyonwall erosion (e.g., rills and rock avalanches), and the occurrence and distribution of bottomtrawl marks next to the canyon-walls. The bathymetric surveys by the H-ROV Ariane were followed by dives of the inspection-class ROV Liropus, aimed to obtain video footage of the CWC communities and to collect samples of benthic organisms. Both robots navigated along the same transects and the combination of both types of information will be used to conduct habitat mapping studies at very high resolution and to assess fine scale spatial differences and species distribution on these benthic canyon ecosystems Peer reviewed 2022-05-30T11:25:17Z 2022-05-30T11:25:17Z 2021-06-16 comunicación de congreso http://purl.org/coar/resource_type/c_5794 5th International Network for Submarine Canyon Investigation and Scientific Exchange International Symposium (2021) http://hdl.handle.net/10261/270891 en Sí open
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
description 5th International Network for Submarine Canyon Investigation and Scientific Exchange International Symposium (INCISE), 14-18 June 2021
format comunicación de congreso
author Puig, Pere
Durán, Ruth
Fabri, Marie-Claire
Guerin, Charline
Cabrera Molina, Cecilia
Lo Iacono, Claudio
Huvenne, Veerle A.I.
Bilan, Meri
Grinyó, Jordi
ABRIC cruise team
spellingShingle Puig, Pere
Durán, Ruth
Fabri, Marie-Claire
Guerin, Charline
Cabrera Molina, Cecilia
Lo Iacono, Claudio
Huvenne, Veerle A.I.
Bilan, Meri
Grinyó, Jordi
ABRIC cruise team
High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean)
author_facet Puig, Pere
Durán, Ruth
Fabri, Marie-Claire
Guerin, Charline
Cabrera Molina, Cecilia
Lo Iacono, Claudio
Huvenne, Veerle A.I.
Bilan, Meri
Grinyó, Jordi
ABRIC cruise team
author_sort Puig, Pere
title High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean)
title_short High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean)
title_full High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean)
title_fullStr High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean)
title_full_unstemmed High-resolution morphological surveys of canyon-wall benthic habitats in Blanes Canyon (NW Mediterranean)
title_sort high-resolution morphological surveys of canyon-wall benthic habitats in blanes canyon (nw mediterranean)
publishDate 2021-06-16
url http://hdl.handle.net/10261/270891
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