Publications

retinal anatomy of a new species of bresiliid shrimp from a hydrothermal vent field on the mid-atlantic ridge.	a new species of shrimp (rimicaris sp.) was recently collected from the snake pit hydrothermal vent field on the mid-atlantic ridge. until the discovery in 1989 that the deep-sea, hydrothermal vent species, rimicaris exoculata, possessed a hypertrophied dorsal eye, everyone believed that animals recovered from vent environments were blind. like r. exoculata, rimicaris sp., a small orange bresiliid shrimp, has an enlarged dorsal eye specialized for detecting light in a very dim environment instea ...	1996	8852633
phylogenetic diversity of bacterial and archaeal communities in the anoxic zone of the cariaco basin.	microbial community samples were collected from the anoxic zone of the cariaco basin at depths of 320, 500, and 1,310 m on a november 1996 cruise and were used to construct 16s ribosomal dna libraries. of 60 nonchimeric sequences in the 320-m library, 56 belonged to the epsilon subdivision of the proteobacteria (epsilon-proteobacteria) and 53 were closely related to ectosymbionts of rimicaris exoculata and alvinella pompejana, which are referred to here as epsilon symbiont relatives (esr). the 5 ...	2001	11282619
the visibility of 350 degrees c black-body radiation by the shrimp rimicaris exoculata and man.	the eye of the 'eyeless' shrimp rimicaris exoculata is unusual in having no image-forming optics and a high concentration of rhodopsin. the shrimps swarm around 350 degrees c hydrothermal 'black smoker' vents in the mid-atlantic ridge. there is no other known source of visible light in the shrimp's environment. the spectral sensitivity of rhodopsin is well matched to typical spectra of bioluminescence of organisms found at lesser depths, but other animals detect such emissions without the unusua ...	1989	15726721
distribution of micro-essential (fe, cu, zn) and toxic (hg) metals in tissues of two nutritionally distinct hydrothermal shrimps.	hydrothermal ecosystems of the mid atlantic ridge (mar) are dominated by shrimps and mussels that are naturally exposed to elevated levels of heavy metals providing unique in situ laboratories for ecotoxicological investigations. this study reports on the tissue compartmentalization of both micro-essential (fe, zn, cu) and toxic metals (hg) in two nutritionally distinct cariddean vent shrimps: rimicaris exoculata and mirocaris fortunata, in order to shed light on organism-biota interactions at h ...	2006	16209883
detoxification mechanisms in shrimp: comparative approach between hydrothermal vent fields and estuarine environments.	hydrothermal vents are extreme deep-sea habitats that, due to their singular features, still intrigue scientific communities. swift growth rates and profuse biomass of biological communities can be observed, despite of their inherently unstable physical-chemical and toxic conditions, indicating that organisms inhabiting this environment must be well adapted to these inhospitable conditions. the caridean shrimp, chorocaris chacei, mirocaris fortunata and rimicaris exoculata, together with bathymo ...	2008	18405963
occurrence of deferribacterales and entomoplasmatales in the deep-sea alvinocarid shrimp rimicaris exoculata gut.	abstract the phylogenetic diversity of the gut microbial population of the hydrothermal shrimp rimicaris exoculata was determined. the presence of micro-organisms in the hindgut of the shrimp was determined, and their morphology illustrated for the first time by transmission electron microscopy. dna was extracted from the fore-, mid- and hindgut of shrimps collected at the rainbow site, at the mid-atlantic ridge, and the sequences of the small-subunit rrna (16s rdna) were analyzed. seven differe ...	2003	19719579
pathways of carbon and energy metabolism of the epibiotic community associated with the deep-sea hydrothermal vent shrimp rimicaris exoculata.	the shrimp rimicaris exoculata dominates the faunal biomass at many deep-sea hydrothermal vent sites at the mid-atlantic ridge. in its enlarged gill chamber it harbors a specialized epibiotic bacterial community for which a nutritional role has been proposed.	2011	21249205
dual symbiosis of the vent shrimp rimicaris exoculata with filamentous gamma- and epsilonproteobacteria at four mid-atlantic ridge hydrothermal vent fields.	the shrimp rimicaris exoculata from hydrothermal vents on the mid-atlantic ridge (mar) harbours bacterial epibionts on specialized appendages and the inner surfaces of its gill chamber. using comparative 16s rrna sequence analysis and fluorescence in situ hybridization (fish), we examined the r. exoculata epibiosis from four vents sites along the known distribution range of the shrimp on the mar. our results show that r. exoculata lives in symbiosis with two types of filamentous epibionts. one b ...	2010	21966914
acquisition of epibiotic bacteria along the life cycle of the hydrothermal shrimp rimicaris exoculata.	the caridean shrimp rimicaris exoculata dominates the fauna at several mid-atlantic ridge hydrothermal vent sites. this shrimp has an enlarged gill chamber, harboring a dense ectosymbiotic community of chemoautotrophic bacteria associated with mineral oxide deposits. until now, their acquisition is not fully understood. at three hydrothermal vent sites, we analyzed the epibionts diversity at different moult stages and also in the first stages of the shrimp life (eggs, hatched eggs (with larvae) ...	2011	21993397
effects of hydrogen sulfide on bacterial communities on the surface of galatheid crab, shinkaia crosnieri, and in a bacterial mat cultured in rearing tanks.	to investigate the effects of h2s on the bacterial consortia on the galatheid crab, shinkaia crosnieri, crabs of this species were cultivated in the laboratory under two different conditions, with and without hydrogen sulfide feeding. we developed a novel rearing tank system equipped with a feedback controller using a semiconductor sensor for hydrogen sulfide feeding. h2s aqueous concentration was successfully maintained between 5 to 40 µm for 80 d with the exception of brief periods of mechanic ...	2013	23080406
ltr-retrotransposons in r. exoculata and other crustaceans: the outstanding success of galea-like copia elements.	transposable elements are major constituents of eukaryote genomes and have a great impact on genome structure and stability. they can contribute to the genetic diversity and evolution of organisms. knowledge of their distribution among several genomes is an essential condition to study their dynamics and to better understand their role in species evolution. ltr-retrotransposons have been reported in many diverse eukaryote species, describing a ubiquitous distribution. given their abundance, dive ...	2013	23469217
arsenic speciation in food chains from mid-atlantic hydrothermal vents.	arsenic concentration and speciation were determined in benthic fauna collected from the mid-atlantic ridge hydrothermal vents. the shrimp species, rimicaris exoculata, the vent chimney-dwelling mussel, bathymodiolus azoricus, branchipolynoe seepensis, a commensal worm of b. azoricus, and the gastropod peltospira smaragdina showed variations in as concentration and in stable isotope (δ(13)c and δ(15)n) signature between species, suggesting different sources of as uptake. arsenic speciation showe ...	2012	23741175
identification and characterization of carboxyl esterases of gill chamber-associated microbiota in the deep-sea shrimp rimicaris exoculata by using functional metagenomics.	the shrimp rimicaris exoculata dominates the fauna in deep-sea hydrothermal vent sites along the mid-atlantic ridge (depth, 2,320 m). here, we identified and biochemically characterized three carboxyl esterases from microbial communities inhabiting the r. exoculata gill that were isolated by naive screens of a gill chamber metagenomic library. these proteins exhibit low to moderate identity to known esterase sequences (≤52%) and to each other (11.9 to 63.7%) and appear to have originated from un ...	2015	25595762