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A classification scheme for deep seafloor habitats ArchiMer
Greene, Hg; Yoklavich, Mm; Starr, Rm; O'Connell, Vm; Wakefield, Ww; Sullivan, De; Mcrea, Je; Cailliet, Gm.
A standard, universally useful classification scheme for deepwater habitats needs to be established so that descriptions of these habitats can be accurately and efficiently applied among scientific disciplines. In recent years many marine benthic habitats in deep water have been described using geophysical and biological data. These descriptions can vary from one investigator to another, which makes it difficult to compare habitats and associated biological assemblages among geographic regions. Using geophysical data collected with a variety of remote sensor systems and in situ biological and geologic observations, we have constructed a classification scheme that can be used in describing marine benthic habitats in deep water.
Tipo: Text Palavras-chave: Habitat; Classification universelle; Benthique; Gestion des pêcheries; Habitat; Universal classification; Benthic; Fisheries management.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43590/44030.pdf
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Mapping marine habitats with high resolution sidescan sonar ArchiMer
Mcrea, Je; Greene, Hg; O'Connell, Vm; Wakefield, Ww.
The application of marine geophysics and GIS techniques to the characterization of benthic habitats has increased the ability of fisheries managers to assess distribution and habitat types beyond common practices. We report upon a 150 kHz sidescan sonar survey offshore of Kruzof Island, Alaska undertaken to characterize rockfish (Sebastes) habitat. Using GIS, MapGrafix and Map*Factory we determined the percentage of seafloor cover that exists in our survey area. Bathymetry in the study area was determined with sidescan interferometry. All XYZ data were gridded using Surfer and plotted in shaded relief, bathymetric contour, and 3-dimensional formats. Contoured bathymetry was used as an overlay in MapGrafix. Small sub-areas were extracted from the...
Tipo: Text Palavras-chave: Habitat; Mégahabitat; Mésohabitat; Balayage; Cartographie; Habitat; Megahabitat; Mesohabitat; Sidescan; Mapping.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43591/44031.pdf
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