Consulta: subjectFacets:"Epibiontes"
Registros recuperados: 2
Data/hora: 02/06/2024 14:25:24

Approche métagénomique de la chimiosynthèse en système hydrothermal océanique profond : cas particulier des symbioses bactériennes associées à la crevette Rimicaris exoculata
Provedor de dados: 5
Autores: Jan, Cyrielle.
The hydrothermal shrimp Rimicaris exoculata is an endemic species of the Mid-Atlantic Ridge (MAR).This species lives in dense aggregates on the walls of active chimneys and dominates the megafauna of most of these sites. This shrimp has two distinct microbial communities whose roles remain almost unknown. One of these communities is associated with the cephalothorax and hypertrophied mouthparts.These are covered by a dense community of bacteria affiliated to chemoautotrophic epibionts associated with mineral deposits. To deepen our knowledge on the symbiotic community in the context of the thesis, a metagenomic approach was undertaken. This helped highlighting the microbial diversity present with a dominant phylum, the Proteobacteria. Two classes are...
Tipo: Text
Palavras-chave: Epibiontes; Métagénomique; Rimicaris exoculata; Symbiose; Zetaproteobacteria; Symbiosis; Epibionts; Metagenomic.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00498/60954/64357.pdf

Estimation des stocks de bivalves en élevage et des épibiontes dans la lagune de Thau et modélisation de la dynamique des populations d'huîtres creuses (Crassostrea gigas, Thunberg)
Provedor de dados: 5
Autores: Gangnery, Aline.
In Thau Iagoon (Mediterranean Sea), shellfish are cultured in suspension. Molluscs are reared on ropes that are suspended on frames. Principal species concerned by breeding are Crassostrea gigas, Mytilus galloprovincialis and, in a less extent, Ostrea edulis. A new sampling method was developped to assess the total stock of cultured shellfish and was tested in July 1998 and April 1999. The total stock was found to be 19500 tons (± 1120 SE) in 1998 and 14100 tons (± 830 SE) in 1999, thus exhibiting temporal variations. Temporal differences in the total stock are mainly attributable to the breeding cycle but also to sorne exceptionnal events which occurred in Thau lageon in 1997 and 1998 (water anoxia, bacteriological crisis, bloom of toxic algae). In the...
Tipo: Text
Palavras-chave: Etang de Thau; Bivalves; Echantillonnage; Dynamique; Modèle; Epibiontes.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00443/55478/57008.pdf