Two distinct periplasmic enzymes are responsible for tellurite/tellurate and selenite reduction by strain ER-Te-48 associated with the deep sea hydrothermal vent tube worms at the Juan de Fuca Ridge black smokers

2017 ◽  
Vol 199 (8) ◽  
pp. 1113-1120 ◽  
Author(s):  
Chris Maltman ◽  
Lynda J. Donald ◽  
Vladimir Yurkov
Keyword(s):  
Deep Sea ◽  
Hydrothermal Vent ◽  
Juan De Fuca Ridge ◽  
Selenite Reduction ◽  
Fuca Ridge ◽  
Tube Worms ◽  
Juan De Fuca ◽  
Black Smokers ◽  
Vent Tube

scholarly journals Protozoan?bacterial symbiosis in a deep-sea hydrothermal vent folliculinid ciliate (Folliculinopsis sp.) from the Juan de Fuca Ridge

2007 ◽  
Vol 28 (1) ◽  
pp. 63-71 ◽  
Author(s):  
Angela Kouris ◽  
S. Kim Juniper ◽  
Ghislaine Frébourg ◽  
Françoise Gaill
Keyword(s):  
Deep Sea ◽  
Hydrothermal Vent ◽  
Juan De Fuca Ridge ◽  
Fuca Ridge ◽  
Bacterial Symbiosis ◽  
Juan De Fuca

scholarly journals Biodiversity and trophic ecology of hydrothermal vent fauna associated with tubeworm assemblages on the Juan de Fuca Ridge

2018 ◽  
Vol 15 (9) ◽  
pp. 2629-2647 ◽  
Author(s):  
Yann Lelièvre ◽  
Jozée Sarrazin ◽  
Julien Marticorena ◽  
Gauthier Schaal ◽  
Thomas Day ◽  
...  
Keyword(s):  
Food Webs ◽  
Hydrothermal Vent ◽  
Trophic Structure ◽  
Juan De Fuca Ridge ◽  
Small Scale ◽  
Ecological Niches ◽  
Primary Role ◽  
Fuca Ridge ◽  
Juan De Fuca ◽  
Successional Stages

Abstract. Hydrothermal vent sites along the Juan de Fuca Ridge in the north-east Pacific host dense populations of Ridgeia piscesae tubeworms that promote habitat heterogeneity and local diversity. A detailed description of the biodiversity and community structure is needed to help understand the ecological processes that underlie the distribution and dynamics of deep-sea vent communities. Here, we assessed the composition, abundance, diversity and trophic structure of six tubeworm samples, corresponding to different successional stages, collected on the Grotto hydrothermal edifice (Main Endeavour Field, Juan de Fuca Ridge) at 2196 m depth. Including R. piscesae, a total of 36 macrofaunal taxa were identified to the species level. Although polychaetes made up the most diverse taxon, faunal densities were dominated by gastropods. Most tubeworm aggregations were numerically dominated by the gastropods Lepetodrilus fucensis and Depressigyra globulus and polychaete Amphisamytha carldarei. The highest diversities were found in tubeworm aggregations characterised by the longest tubes (18.5 ± 3.3 cm). The high biomass of grazers and high resource partitioning at a small scale illustrates the importance of the diversity of free-living microbial communities in the maintenance of food webs. Although symbiont-bearing invertebrates R. piscesae represented a large part of the total biomass, the low number of specialised predators on this potential food source suggests that its primary role lies in community structuring. Vent food webs did not appear to be organised through predator–prey relationships. For example, although trophic structure complexity increased with ecological successional stages, showing a higher number of predators in the last stages, the food web structure itself did not change across assemblages. We suggest that environmental gradients provided by the biogenic structure of tubeworm bushes generate a multitude of ecological niches and contribute to the partitioning of nutritional resources, releasing communities from competition pressure for resources and thus allowing species to coexist.

Lithium isotopic systematics of hydrothermal vent fluids at the Main Endeavour Field, Northern Juan de Fuca Ridge

2004 ◽  
Vol 212 (1-2) ◽  
pp. 17-26 ◽  
Author(s):  
D.I. Foustoukos ◽  
R.H. James ◽  
M.E. Berndt ◽  
W.E. Seyfried
Keyword(s):  
Hydrothermal Vent ◽  
Juan De Fuca Ridge ◽  
Fuca Ridge ◽  
Juan De Fuca ◽  
Main Endeavour

Tanaidacea (Crustacea; Peracarida) from chemically reduced habitatsóthe hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific

Zootaxa ◽  
2006 ◽  
Vol 1164 (1) ◽  
pp. 1 ◽  
Author(s):  
KIM LARSEN
Keyword(s):  
Hydrothermal Vent ◽  
Hydrothermal Vents ◽  
Juan De Fuca Ridge ◽  
Ontogenetic Variation ◽  
Fuca Ridge ◽  
Northeast Pacific ◽  
New Information ◽  
Juan De Fuca ◽  
Gorda Ridge

The tanaidacean fauna from hydrothermal vents habitats on the Juan de Fuca Ridge, Escabana Trough, Gorda Ridge and from experimental wood deployments, is examined. The material revealed species belonging to the genera; Armaturatanais, Meromonakantha, Neotanais, Pseudotanais, Protanais, Typhlotanais, and an undescribed typhlotanaid genus. The tanaidaceanfauna was almost exclusively dominated by Protanais, which in turn was almost exclusively found on recovered wood blocks. Most species are new to science and the species Armaturatanais trispinipodus n. sp. and Protanais ligniamator n. sp. are described. New information on tanaidacean ontogenetic variation is given for Protanais ligniamator.

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