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	Provedor de dados ArchiMer (2) Autor Juniper, Sk (2) Sarrazin, Jozee (2) Legendre, P (1) Massoth, G (1) Palavra-chave Sulfide edifice (2) Assemblage characteristics (1) Biomass (1) Ecological model (1) Faunal succession (1) Fluid flow (1) Habitat characterization (1) Hydrothermal vent ecology (1) Image analysis (1) In situ measurements (1) Juan de Fuca Ridge (1) Marine ecosystem biomass (1) Mosaic habitat (1) Physical and chemical factors (1) Species distribution (1) Statistical analyses (1) Substratum types (1) Vent ecology (1) Mais... Tipo do documento Text (2) Ano 1999 (2) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Biological characteristics of a hydrothermal edifice mosaic community ArchiMer 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 Physical and chemical factors influencing species distributions on hydrothermal sulfide edifices of the Juan de Fuca Ridge, northeast Pacific ArchiMer Sarrazin, Jozee; Juniper, Sk; Massoth, G; Legendre, P. This study examines relationships between hydrothermal vent species and their surrounding physical and chemical environment on 2 high-temperature sulfide edifices of the Juan de Fuca Ridge (northeast Pacific). Video imagery and in situ temperature and chemical information were acquired during 2 remotely operated vehicle (ROV) dive programs in 1993 and 1995, for a total of 78 scans. Statistical analyses of environmental and faunal data reveal a heterogeneous distribution (cor respondence analyses) of hydrothermal species and demonstrate a significant influence of local physical and chemical conditions on species distributions (canonical correspondence analyses). Results confirm the importance of hydrogen sulfide to the distribution of vent species as well... Tipo: Text Palavras-chave: Hydrothermal vent ecology; Physical and chemical factors; In situ measurements; Habitat characterization; Species distribution; Sulfide edifice; Statistical analyses; Fluid flow; Substratum types; Mosaic habitat. Ano: 1999 URL: http://archimer.ifremer.fr/doc/00280/39113/37666.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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