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dc.contributor.author
Sanchez Carnero, Noela Belen
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dc.contributor.author
Rodríguez Pérez, Daniel
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dc.date.available
2022-04-29T18:05:12Z
dc.date.issued
2021-02
dc.identifier.citation
Sanchez Carnero, Noela Belen; Rodríguez Pérez, Daniel; A sea bottom classification of the Robredo area in the Northern San Jorge Gulf (Argentina); Springer; Geo-marine Letters; 41; 12; 2-2021; 1-14
dc.identifier.issn
0276-0460
dc.identifier.uri
http://hdl.handle.net/11336/156147
dc.description.abstract
Benthic habitats are primarily determined by the nature of the substrate (i.e., the type of sediment or rock) and by the bathymetry (e.g., light availability, current, or waves exposition) both determining the viability of infaunal organisms. In this sense multibeam (MB) echosounders provide more data about the sea bottom than any other acoustic technique. During the 2014 Argentine-Canadian survey of the RV Coriolis II in the Gulf of San Jorge, MB data were acquired in the area of Robredo, west of the Marine Protected Area (MPA) Parque Interjurisdiccional Marino Costero Patagonia Austral (PIMCPA, Patagonia, Argentine). Acoustic data were affected by acquisition artifacts, so an ad hoc algorithm was required to restore the data. Moreover, during the survey, dredge samples were also acquired where acoustic data suggested changes in substrate properties, and two later scientific surveys acquired video transects of the sea bottom that allowed also a basic classification. A non-supervised classification of the seabed was performed, using a subsampling and voting algorithm, with the acoustic and bathymetric data. The final classification is in agreement with groundtruthing (dredge samples and video transects), showing that bottom structure complexity leads to a meaningful picture of the sea bottom classes in the area. Our results reveal that Robredo has two subareas, one with a fine substrate (west) and another with a coarse substrate (east), the latter being also characterized by outcropping rock formations of marked relief. Despite the small spatial coverage of the survey, the resulting sea bottom classification presented in this paper has described, for the first time, some important features of the benthic geohabitats in the PIMCPA.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BENTHIC GEOHABITAT
dc.subject
MULTIBEAM ECHOSOUNDER
dc.subject
SEABED CLASSIFICATION
dc.subject
PATAGONIAN GULF
dc.subject.classification
Óptica
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
A sea bottom classification of the Robredo area in the Northern San Jorge Gulf (Argentina)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-12-13T19:23:52Z
dc.journal.volume
41
dc.journal.number
12
dc.journal.pagination
1-14
dc.journal.pais
Alemania
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dc.journal.ciudad
Berlin
dc.description.fil
Fil: Sanchez Carnero, Noela Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
dc.description.fil
Fil: Rodríguez Pérez, Daniel. Universidad Nacional de Educación a Distancia; España
dc.journal.title
Geo-marine Letters
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00367-020-00682-4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00367-020-00682-4
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