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,
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