GEOSCAN, résultats de la recherche


TitreNew approaches to benthic habitat mapping integrating multibeam bathymetry and backscatter, surficial geology and sea floor photographs: a case study from the Scotian Shelf, Atlantic Canada
AuteurTodd, B J; Kostylev, V E; Fader, G B J; Courtney, R C; Pickrill, R A
SourceInternational Council for the Exploration of the Sea (ICES) Council Meeting Document 2000; 16, 2000, 15 pages
LiensAbstract - Résumé
Séries alt.Commission géologique du Canada, Contributions aux publications extérieures 2000123
ÉditeurInternational Council for the Exploration of the Sea |a Copenhagen, Denmark (Copenhagen, Denmark)
RéunionICES 2000 Annual Science Conference; Bruges; BE; Septembre 27-30, 2000
Documentfichier d'ordinateur
MediaCD-ROM; numérique
SNRC11D; 11E; 20O; 20P; 21A; 21B; 21F; 21G; 21H
Lat/Long OENS -70.0000 -62.0000 46.0000 42.0000
Sujetsbathymétrie; benthos; sédiments marins; sediments; plate-forme continentale; techniques de cartographie; écologie marine; milieux marins; géologie de l'environnement; géologie marine; sédimentologie
Illustrationslocation maps; bathymetric profiles; graphs
Résumé(disponible en anglais seulement)
This paper presents results of a new approach for sea floor habitat mapping based on an integrated analysis of multibeam bathymetric data, associated geoscientific information, and benthos data from Browns Bank on the southwestern Scotian Shelf, Atlantic Canada. Six habitats and corresponding associations of benthos were derived and mapped, based on sea floor sediment maps and statistical analysis of megabenthos determined from photographs. The habitats are distinguished primarily on the basis of sediment type and water depth. Additional factors are sea floor geomorphology, habitat complexity, and relative current strength. A Browns Bank benthic habitat .map summarizes the present understanding of the bank's benthic zone.