Microhabitat distribution of Smacigastes micheli (Copepoda: Harpacticoida: Tegastidae) from deep-sea hydrothermal vents at the Mid-Atlantic Ridge, 37° N (Lucky Strike), with a morphological description of its nauplius

2011 ◽  
Vol 33 (2) ◽  
pp. 246-256 ◽  
Author(s):  
Viatcheslav N. Ivanenko ◽  
Paulo H.C. Corgosinho ◽  
Frank Ferrari ◽  
Pierre-Marie Sarradin ◽  
Jozée Sarrazin
1997 ◽  
Vol 148 (1-2) ◽  
pp. 69-91 ◽  
Author(s):  
C. Langmuir ◽  
S. Humphris ◽  
D. Fornari ◽  
C. Van Dover ◽  
K. Von Damm ◽  
...  

2010 ◽  
Vol 68 (2) ◽  
pp. 416-424 ◽  
Author(s):  
A. Colaço ◽  
J. Blandin ◽  
M. Cannat ◽  
T. Carval ◽  
V. Chavagnac ◽  
...  

Abstract Colaço, A., Blandin, J., Cannat, M., Carval, T., Chavagnac, V., Connelly, D., Fabian, M., Ghiron, S., Goslin, J., Miranda, J. M., Reverdin, G., Sarrazin, J., Waldmann, C., and Sarradin, M. 2011. MoMAR-D: a technological challenge to monitor the dynamics of the Lucky Strike vent ecosystem. – ICES Journal of Marine Science, 68: 416–424. The MoMAR (monitoring the Mid-Atlantic Ridge) project was initiated in 1998 by the InterRidge programme to promote and coordinate long-term multidisciplinary monitoring of hydrothermal vents at the Mid-Atlantic Ridge (MAR). The major objective of the project is to study vent ecosystem dynamics using a multidisciplinary approach from geophysics to microbiology over a period of a few decades. MoMAR-D is a demonstration project of MoMAR, partially funded by the European network of excellence ESONET (http://www.esonet-noe.org/). MoMAR-D aims to deploy and manage a multidisciplinary observing system at the Lucky Strike vent field for 1 year. This large hydrothermal field is located at the centre of one of the most volcanically active segments of the MAR. The project has been set up to monitor this region to capture evidence of volcanic events, observe interactions between faulting, magmatism, and hydrothermal circulations, and to evaluate the potential impacts of these environmental factors on the unusual communities colonizing hydrothermal vents. The MoMAR-D infrastructure consists of two sea monitoring nodes (SEAMON) acoustically linked to a surface buoy with satellite communication to a land-based station. The first node will be mainly dedicated to geophysical studies, whereas the second will focus on ecological studies and chemical fluxes. The infrastructure should have been deployed in September 2010 during the MoMARSAT cruise.


2014 ◽  
Vol 119 (4) ◽  
pp. 2543-2566 ◽  
Author(s):  
Thibaut Barreyre ◽  
Javier Escartín ◽  
Robert A. Sohn ◽  
Mathilde Cannat ◽  
Valérie Ballu ◽  
...  

2015 ◽  
Vol 45 (3) ◽  
pp. 489-504 ◽  
Author(s):  
Daniela Zeppilli ◽  
Ann Vanreusel ◽  
Florence Pradillon ◽  
Sandra Fuchs ◽  
Perrine Mandon ◽  
...  

Zootaxa ◽  
2006 ◽  
Vol 1187 (1) ◽  
pp. 1 ◽  
Author(s):  
KIM LARSEN ◽  
MAGDALENA BŁAÓEWICZ-PASZKOWYCZ ◽  
MARINA R. CUNHA

The tanaidacean fauna from the hydrothermal vents in the Lucky Strike Field on the Mid-Atlantic Ridge is examined. The material reveals species belonging to the genera Agathotanais, Apseudes, Leviapseudes, Sphyrapus, Armaturatanais, Leptognathiella, Mesotanais, Pseudotanais and Typhlotanais. One new typhlotanaid genus, Obesutanais, and five new species, Armaturatanais atlanticus, Obesutanais sigridae, Mesotanais styxis, Leptognathiella fragilis, and Typhlotanais incognitus, are described.


2016 ◽  
Vol 4 (6) ◽  
Author(s):  
Christopher A. Abin ◽  
James T. Hollibaugh

Vulcanibacillus modesticaldus BR T was isolated from calcite-rich, metalliferous core samples collected at the Rainbow deep-sea hydrothermal vent field on the Mid-Atlantic Ridge. Here, we report the 2.2-Mb draft genome sequence for this strain, consisting of 100 contigs with a G+C content of 33.6% and 2,227 protein-coding sequences.


2006 ◽  
Vol 56 (5) ◽  
pp. 1047-1053 ◽  
Author(s):  
S. L'Haridon ◽  
M. L. Miroshnichenko ◽  
N. A. Kostrikina ◽  
B. J. Tindall ◽  
S. Spring ◽  
...  

A novel anaerobic, moderately thermophilic, spore-forming bacterium, designated strain BRT, was isolated from deep-sea hydrothermal core samples collected at the Rainbow vent field on the Mid-Atlantic Ridge (36° 14′ N 33° 54′ W). The cells were found to be rod-shaped, non-motile, Gram-positive and spore-forming. The organism grew in the temperature range 37–60 °C, with an optimum at 55 °C, and at pH values in the range 6–8.5, with an optimum around pH 7. NaCl concentrations for growth were in the range 10–40 g l−1, with an optimum at 20–30 g l−1. Strain BRT grew chemo-organoheterotrophically with carbohydrates, proteinaceous substrates and organic acids with nitrate as electron acceptor. The novel isolate was not able to ferment. The G+C content of the genomic DNA was 34.5 mol%. Phylogenetic analysis of the 16S rRNA gene sequence placed strain BRT in the Bacillaceae within the class ‘Bacilli’. On the basis of the phenotypic and phylogenetic data, this isolate should be described as a member of a novel genus, for which the name Vulcanibacillus gen. nov. is proposed. The type species is Vulcanibacillus modesticaldus sp. nov., with the type strain BRT (=DSM 14931T=JCM 12998T).


Author(s):  
I. Martins ◽  
V. Costa ◽  
F. Porteiro ◽  
A. Cravo ◽  
R.S. Santos

Mercury determinations were carried out in mussels (Bathymodiolus azoricus) from three Mid-Atlantic Ridge hydrothermal vents (Lucky Strike, Menez Gwen and Rainbow) and shrimps (Rimicaris exoculata and Mirocaris fortunata) from Rainbow. Among the three hydrothermal vents, mussels of Menez Gwen show the highest levels of total Hg and comparing mussels and shrimps from Rainbow the former show more Hg than shrimps. Mussels from different hydrothermal vents are exposed to different kinds of environment which may result in distinct bioaccumulation processes. Detoxification processes in shrimps are related to the low concentrations found. When compared with coastal species from unpolluted sites, mussels show higher concentrations of total Hg and shrimps lower levels. The methyl-mercury concentrations found were very low, not exceeding the detection limit of the technique.


2021 ◽  
Author(s):  
Merle Ücker ◽  
Rebecca Ansorge ◽  
Yui Sato ◽  
Lizbeth Sayavedra ◽  
Corinna Breusing ◽  
...  

AbstractThe composition and diversity of animal microbiomes is shaped by a variety of factors, many of them interacting, such as host traits, the environment, and biogeography. Hybrid zones, in which the ranges of two host species meet and hybrids are found, provide natural experiments for determining the drivers of microbiome communities, but have not been well studied in marine environments. Here, we analysed the composition of the symbiont community in two deep-sea, Bathymodiolus mussel species along their known distribution range at hydrothermal vents on the Mid-Atlantic Ridge, with a focus on the hybrid zone where they interbreed. In-depth metagenomic analyses of the sulphur-oxidising symbionts of 30 mussels from the hybrid zone, at a resolution of single nucleotide polymorphism analyses of ~2500 orthologous genes, revealed that parental and hybrid mussels (F2–F4 generation) have genetically indistinguishable symbionts. While host genetics does not appear to affect symbiont composition in these mussels, redundancy analyses showed that geographic location of the mussels on the Mid-Atlantic Ridge explained most of the symbiont genetic variability compared to the other factors. We hypothesise that geographic structuring of the free-living symbiont population plays a major role in driving the composition of the microbiome in these deep-sea mussels.


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