Data/hora: 09/06/2024 07:41:24

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Community structure and temperature dynamics within a mussel assemblage on the Southern East Pacific Rise
Autores: | Sarrazin, Jozee; Walter, Cecile; Sarradin, Pierre-marie; Brind'Amour, Anik; Desbruyeres, Daniel; Briand, Patrick; Fabri, Marie-claire; Van Gaever, S; Vanreusel, A; Bachraty, Charleyne; Thiebaut, E.
Data: | 2006-11
Ano: | 2006
Palavras-chave: | East Pacific Rise; Temperature dynamics; Biomass; Diversity; Bathymodiolus thermophilus; Mussel assemblage; Hydrothermal vents.
Resumo: | The composition, biomass and diversity of the fauna in a Bathymodiolus thermophilus mussel assemblage colonizing diffuse flow areas on the SEPR is described and compared with biological characteristics of other hydrothermal assemblages. The spatio-temporal dynamics of temperatures over fine scales within the mussel habitat are characterized using newly-developed statistical approaches. Temperature data obtained from two adjacent habitats (a cirriped assemblage and a bare substratum) are compared. The results of the temperature data show that the mean temperature and the temperature variations were significantly higher in the mussel assemblage (mean temperature: 4.12 +/- 1.85 degrees C) in comparison with 2.40 +/- 0.14 degrees C in the cirriped assemblage and 2.20 +/- 0.23 degrees C on the bare substratum. Discrete temperature measurements showed that temperature data varied both at a broad and fine scales in the mussel assemblage. Finally, analysis of the temperature periodic variability in the mussel assemblage during a 4-day period showed significant periodic modulations near T = 24h. Although not significant, a second trend is also observed around T = 12h. This work represents a step forward to the understanding of species distribution patterns at vents.
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/2006/publication-3570.pdf
Editor: | Station Biologique de Roscoff
Relação: | http://archimer.ifremer.fr/doc/00000/3570/
Formato: | application/pdf
Fonte: | CBM - Cahiers de Biologie Marine (0007-9723) (Station Biologique de Roscoff), 2006-11 , Vol. 47 , N. 4 , P. 483-490
Fonte: | Station biologique de Roscoff 2006