Consulta: subjectFacets:"Vent ecology"
Registros recuperados: 2
Data/hora: 09/06/2024 06:34:45

Biological characteristics of a hydrothermal edifice mosaic community
Provedor de dados: 5
Autores: Sarrazin, Jozee; Juniper, Sk.
This study defines the composition and biomass characteristics of 5 of 6 previously described faunal assemblages that form a mosaic community on hydrothermal sulfide edifices of the Juan de Fuca Ridge (northeast Pacific). Quantitative samples of each assemblage were acquired during 'ROPOS' Remote Operated Vehicle (ROV) dive programs in 1994 and 1996. Total abundance, and species richness, as well as wet and dry weights, were calculated for each assemblage, and sampled surface area was measured directly or from scaled images of sample scars. These data were used to compare species composition, richness and biomass of the distinct assemblages and to estimate total biomass of a sulfide edifice. In addition to major compositional differences, we observed an...
Tipo: Text
Palavras-chave: Vent ecology; Biomass; Faunal succession; Sulfide edifice; Assemblage characteristics; Image analysis; Juan de Fuca Ridge; Ecological model; Marine ecosystem biomass.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00280/39114/37667.pdf

Distribution and spatial variation of hydrothermal faunal assemblages at Lucky Strike (Mid-Atlantic Ridge) revealed by high-resolution video image analysis
Provedor de dados: 5
Autores: Cuvelier, Daphne; Sarrazin, Jozee; Colaco, Ana; Copley, Jon; Desbruyeres, Daniel; Glover, Adrian G.; Tyler, Paul; Santos, Ricardo Serrao.
Whilst the fauna inhabiting hydrothermal vent structures in the Atlantic Ocean is reasonably well known, less is understood about the spatial distributions of the fauna in relation to abiotic and biotic factors. In this study, a major active hydrothermal edifice (Eiffel Tower, at 1690 m depth) on the Lucky Strike vent field (Mid-Atlantic Ridge (MAR)) was investigated. Video transects were carried out by ROV Victor 6000 and complete image coverage was acquired. Four distinct assemblages, ranging from dense larger-sized Bathymodiolus mussel beds to smaller-sized mussel clumps and alvinocaridid shrimps, and two types of substrata were defined based on high definition photographs and video imagery. To evaluate spatial variation, faunal distribution was mapped...
Tipo: Text
Palavras-chave: Vent ecology; Mid Atlantic Ridge; Hydrothermal vent; Lucky Strike; Video analysis; Faunal assemblages; Spatial distribution; Community structure.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-7328.pdf