Thermophilic bacterial sulfate reduction in deep-sea sediments at the Guaymas Basin hydrothermal vent site (Gulf of California)

1990 ◽  
Vol 37 (4) ◽  
pp. 695-710 ◽  
Author(s):  
Bo Barker Jørgensen ◽  
Leon X. Zawacki ◽  
Holger W. Jannasch
Keyword(s):  
Sulfate Reduction ◽  
Deep Sea ◽  
Hydrothermal Vent ◽  
Gulf Of California ◽  
Bacterial Sulfate Reduction ◽  
Guaymas Basin ◽  
Deep Sea Sediments

Microbial sulfate reduction in deep-sea sediments at the Guaymas Basin hydrothermal vent area: Influence of temperature and substrates

1994 ◽  
Vol 58 (16) ◽  
pp. 3335-3343 ◽  
Author(s):  
Lars Elsgaard ◽  
Mai F. Isaksen ◽  
Bo Barker Jørgensen ◽  
Anne-Marie Alayse ◽  
Holger W. Jannasch
Keyword(s):  
Sulfate Reduction ◽  
Deep Sea ◽  
Hydrothermal Vent ◽  
Guaymas Basin ◽  
Influence Of Temperature ◽  
Microbial Sulfate Reduction ◽  
Deep Sea Sediments

scholarly journals Effects of Temperature and Pressure on Sulfate Reduction and Anaerobic Oxidation of Methane in Hydrothermal Sediments of Guaymas Basin

2004 ◽  
Vol 70 (2) ◽  
pp. 1231-1233 ◽  
Author(s):  
Jens Kallmeyer ◽  
Antje Boetius
Keyword(s):  
Sulfate Reduction ◽  
Deep Sea ◽  
Anaerobic Oxidation Of Methane ◽  
Anaerobic Oxidation ◽  
Guaymas Basin ◽  
Oxidation Of Methane ◽  
Hydrothermal Sediments ◽  
Deep Sea Sediments ◽  
Effects Of Temperature ◽  
Temperature And Pressure

ABSTRACT Rates of sulfate reduction (SR) and anaerobic oxidation of methane (AOM) in hydrothermal deep-sea sediments from Guaymas Basin were measured at temperatures of 5 to 200°C and pressures of 1 × 105, 2.2 × 107, and 4.5 × 107 Pa. A maximum SR of several micromoles per cubic centimeter per day was found at between 60 and 95°C and 2.2 × 107 and 4.5 × 107 Pa. Maximal AOM was observed at 35 to 90°C but generally accounted for less than 5% of SR.

Bacterial Sulfate Reduction Above 100 C in Deep-Sea Hydrothermal Vent Sediments

Science ◽  
1992 ◽  
Vol 258 (5089) ◽  
pp. 1756-1757 ◽  
Author(s):  
B. B. Jorgensen ◽  
M. F. Isaksen ◽  
H. W. Jannasch
Keyword(s):  
Sulfate Reduction ◽  
Deep Sea ◽  
Hydrothermal Vent ◽  
Bacterial Sulfate Reduction

Microbial diversity in deep-sea sediments from the Menez Gwen hydrothermal vent system of the Mid-Atlantic Ridge

2015 ◽  
Vol 24 ◽  
pp. 343-355 ◽  
Author(s):  
Teresa Cerqueira ◽  
Diogo Pinho ◽  
Conceição Egas ◽  
Hugo Froufe ◽  
Bjørn Altermark ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Deep Sea ◽  
Hydrothermal Vent ◽  
Deep Sea Sediments ◽  
Mid Atlantic Ridge ◽  
Menez Gwen

scholarly journals Comparative study of vent and seep macrofaunal communities in the Guaymas Basin

2015 ◽  
Vol 12 (18) ◽  
pp. 5455-5479 ◽  
Author(s):  
M. Portail ◽  
K. Olu ◽  
E. Escobar-Briones ◽  
J. C. Caprais ◽  
L. Menot ◽  
...  
Keyword(s):  
Deep Sea ◽  
Gulf Of California ◽  
Microbial Mats ◽  
Abiotic Factors ◽  
Ecological Processes ◽  
Guaymas Basin ◽  
The Family ◽  
Family Level ◽  
Higher Temperature ◽  
Macrofaunal Community

Abstract. Understanding the ecological processes and connectivity of chemosynthetic deep-sea ecosystems requires comparative studies. In the Guaymas Basin (Gulf of California, Mexico), the presence of seeps and vents in the absence of a biogeographic barrier, and comparable sedimentary settings and depths offers a unique opportunity to assess the role of ecosystem-specific environmental conditions on macrofaunal communities. Six seep and four vent assemblages were studied, three of which were characterised by common major foundation taxa: vesicomyid bivalves, siboglinid tubeworms and microbial mats. Macrofaunal community structure at the family level showed that density, diversity and composition patterns were primarily shaped by seep- and vent-common abiotic factors including methane and hydrogen sulfide concentrations, whereas vent environmental specificities (higher temperature, higher metal concentrations and lower pH) were not significant. The type of substratum and the heterogeneity provided by foundation species were identified as additional structuring factors and their roles were found to vary according to fluid regimes. At the family level, seep and vent similarity reached at least 58 %. All vent families were found at seeps and each seep-specific family displayed low relative abundances (< 5 %). Moreover, 85 % of the identified species among dominant families were shared between seep and vent ecosystems. This study provides further support to the hypothesis of continuity among deep-sea seep and vent ecosystems.

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