Mapeo del fondo marino del talud continental superior y medio de Uruguay

We analyzed the acoustic data obtained with a multibeam echosounder during an oceanographic survey abroad the “R/V Miguel Oliver” in january-february of 2010. The aim was mapping the sea floor of the continental slope of the uruguayan Exclusive Economic Zone (EEZ). The acoustic data were processed with MB-System software, and then incorporated into a Geographic Information System (Quantum GIS). We obtained 3 m for 3 m grid files to describe small submarine structures (mounds and pockmarks), and also a topographic map of the entire area to describe large submarine structures (submarine canyons and landslides). When we analyzed the topography of the entire area we identified 4 submarine canyons and the beginning of a fifth in the south end. We also observed 63 small submarine structures in the seafloor, where 22 were mounds and 41 were pockmarks (PM). The mounds were classified according to its grouping and the presence of erosive traces (scarps) like Solitary Mound with Scarp (SMwS), Solitary Mound without Scarp (SMwoS) and Grouped Mounds (GM). This information may contribute to define priority areas to protect by its geomorphological features or by its present biota, enabling responsible fisheries resource management.

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Bibliographic Details
Main Authors: López-Orrego, Guzmán, De Mello, Camila, Marín, Yamandú
Format: Proceedings Paper biblioteca
Language:Spanish / Castilian
Published: 2011
Subjects:Multibeam sonar, Seafloor mapping, Submarine canyons, Coral reefs,
Online Access:http://hdl.handle.net/1834/4336
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spelling dig-aquadocs-1834-43362021-05-19T06:40:28Z Mapeo del fondo marino del talud continental superior y medio de Uruguay López-Orrego, Guzmán De Mello, Camila Marín, Yamandú Multibeam sonar Seafloor mapping Submarine canyons Coral reefs We analyzed the acoustic data obtained with a multibeam echosounder during an oceanographic survey abroad the “R/V Miguel Oliver” in january-february of 2010. The aim was mapping the sea floor of the continental slope of the uruguayan Exclusive Economic Zone (EEZ). The acoustic data were processed with MB-System software, and then incorporated into a Geographic Information System (Quantum GIS). We obtained 3 m for 3 m grid files to describe small submarine structures (mounds and pockmarks), and also a topographic map of the entire area to describe large submarine structures (submarine canyons and landslides). When we analyzed the topography of the entire area we identified 4 submarine canyons and the beginning of a fifth in the south end. We also observed 63 small submarine structures in the seafloor, where 22 were mounds and 41 were pockmarks (PM). The mounds were classified according to its grouping and the presence of erosive traces (scarps) like Solitary Mound with Scarp (SMwS), Solitary Mound without Scarp (SMwoS) and Grouped Mounds (GM). This information may contribute to define priority areas to protect by its geomorphological features or by its present biota, enabling responsible fisheries resource management. Se analizaron los registros acústicos obtenidos con una ecosonda multihaz durante una campaña oceanográfica del “B/O Miguel Oliver” en enero-febrero de 2010. El objetivo fue mapear el fondo marino del talud continental en la Zona Económica Exclusiva (ZEE) uruguaya. El procesamiento de los registros acústicos se realizó con el software MB-System, y se incorporaron a un sistema de Información Geográfica (Quantum GIS). Se obtuvieron grillas de 3 m por 3 m para describir las formaciones submarinas menores (montículos y pockmarks), y también un mapa topográfico de toda el área de estudio para describir las formaciones submarinas mayores (cañones submarinos, y cicatrices de deslizamientos). Al analizar la topografía del área se identificaron 4 cañones submarinos y el comienzo de un quinto en el extremo Sur. Se observaron también 63 formaciones de menor tamaño sobre el fondo, 22 de las cuales fueron montículos y 41 pockmarks (PM). Los montículos fueron clasificados según su agrupamiento y presencia de rastros erosivos (escarpa) como Montículo Solitario con Escarpa (MScE), Montículo Solitario sin Escarpa (MSsE) y Montículos Agrupados (MA). Esta información podrá contribuir a la determinación de áreas prioritarias de conservación tanto por sus características geomorfológicas como por la biota allí presente, posibilitando un manejo responsable de los recursos pesqueros. Asociación Uruguaya de Acústica Unpublished Miguel Oliver, Acústica, Sonar mulithaz, Mapeo del fondo marino, Cañones submarinos, Corales de aguas frias 2012-08-14T17:42:23Z 2012-08-14T17:42:23Z 2011 Proceedings Paper Non-Refereed Article Reunión Regional de Acústica - AUA 2011: Montevideo - Uruguay, 11 y 12 de octubre de 2011 http://hdl.handle.net/1834/4336 es http://creativecommons.org/licenses/by/3.0/ ZEE Uruguay
institution UNESCO
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-aquadocs
tag biblioteca
region Europa del Oeste
libraryname Repositorio AQUADOCS
language Spanish / Castilian
topic Multibeam sonar
Seafloor mapping
Submarine canyons
Coral reefs
Multibeam sonar
Seafloor mapping
Submarine canyons
Coral reefs
spellingShingle Multibeam sonar
Seafloor mapping
Submarine canyons
Coral reefs
Multibeam sonar
Seafloor mapping
Submarine canyons
Coral reefs
López-Orrego, Guzmán
De Mello, Camila
Marín, Yamandú
Mapeo del fondo marino del talud continental superior y medio de Uruguay
description We analyzed the acoustic data obtained with a multibeam echosounder during an oceanographic survey abroad the “R/V Miguel Oliver” in january-february of 2010. The aim was mapping the sea floor of the continental slope of the uruguayan Exclusive Economic Zone (EEZ). The acoustic data were processed with MB-System software, and then incorporated into a Geographic Information System (Quantum GIS). We obtained 3 m for 3 m grid files to describe small submarine structures (mounds and pockmarks), and also a topographic map of the entire area to describe large submarine structures (submarine canyons and landslides). When we analyzed the topography of the entire area we identified 4 submarine canyons and the beginning of a fifth in the south end. We also observed 63 small submarine structures in the seafloor, where 22 were mounds and 41 were pockmarks (PM). The mounds were classified according to its grouping and the presence of erosive traces (scarps) like Solitary Mound with Scarp (SMwS), Solitary Mound without Scarp (SMwoS) and Grouped Mounds (GM). This information may contribute to define priority areas to protect by its geomorphological features or by its present biota, enabling responsible fisheries resource management.
format Proceedings Paper
topic_facet Multibeam sonar
Seafloor mapping
Submarine canyons
Coral reefs
author López-Orrego, Guzmán
De Mello, Camila
Marín, Yamandú
author_facet López-Orrego, Guzmán
De Mello, Camila
Marín, Yamandú
author_sort López-Orrego, Guzmán
title Mapeo del fondo marino del talud continental superior y medio de Uruguay
title_short Mapeo del fondo marino del talud continental superior y medio de Uruguay
title_full Mapeo del fondo marino del talud continental superior y medio de Uruguay
title_fullStr Mapeo del fondo marino del talud continental superior y medio de Uruguay
title_full_unstemmed Mapeo del fondo marino del talud continental superior y medio de Uruguay
title_sort mapeo del fondo marino del talud continental superior y medio de uruguay
publishDate 2011
url http://hdl.handle.net/1834/4336
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AT demellocamila mapeodelfondomarinodeltaludcontinentalsuperiorymediodeuruguay
AT marinyamandu mapeodelfondomarinodeltaludcontinentalsuperiorymediodeuruguay
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