Consulta: creatorFacets:"Wakefield, Ww"
Registros recuperados: 3
Data/hora: 26/07/2024 22:51:50

A classification scheme for deep seafloor habitats
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Fish faunal and habitat analyses using trawls, camera sleds and submersibles in benthic deep-sea habitats off central California
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Cailliet, Gm; Andrews, Ah; Wakefield, Ww; Moreno, G; Rhodes, Kl.
Beam trawl, camera sled and submersible data from 2 000-3 300 m off central California produced similar fish faunal composition, but different density estimates. All species caught in trawls were observed in camera-sled and submersible observations. However, some rare species that were observed were not caught in trawls. The fish fauna was dominated by the families Macrouridae, Zoarcidae, Moridae, and Rajidae. Fishes both trawled and observed were the macrourids Coryphaenoides armatus, C. filifer and C. leptolepis; the zoarcids Bothrocara spp., Pachycara lepinium and Lycenchelys spp.; the morid Antimora microlepis; the rajid Bathyraja trachura, the ophidiid Spectrunculus grandis, and the liparidid Careproctus ovigerum. One unidentified liparidid...
Tipo: Text
Palavras-chave: Benthos; Poisson; Habitat; Chalutage; Submersible; Deep-sea; Fishes; Habitat; Sampling; Submersibles.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43583/44022.pdf

Mapping marine habitats with high resolution sidescan sonar
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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