Biogeochemistry of a low-activity cold seep in the Larsen B area, western Weddell Sea, Antarctica

@article{Niemann2009BiogeochemistryOA,
  title={Biogeochemistry of a low-activity cold seep in the Larsen B area, western Weddell Sea, Antarctica},
  author={H. Niemann and D. Fischer and Dorothea Graffe and K. Knittel and A. Montiel and O. Heilmayer and Kerstin N{\"o}then and T. Pape and S. Kasten and G. Bohrmann and A. Boetius and J. Gutt},
  journal={Biogeosciences},
  year={2009},
  volume={6},
  pages={2383-2395}
}
Abstract. First videographic indication of an Antarctic cold seep ecosystem was recently obtained from the collapsed Larsen B ice shelf, western Weddell Sea (Domack et al., 2005). Within the framework of the R/V Polarstern expedition ANTXXIII-8, we revisited this area for geochemical, microbiological and further videographical examinations. During two dives with ROV Cherokee (MARUM, Bremen), several bivalve shell agglomerations of the seep-associated, chemosynthetic clam Calyptogena sp. were… Expand

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References

SHOWING 1-10 OF 94 REFERENCES
Biogeochemical processes and microbial diversity of the Gullfaks and Tommeliten methane seeps (Northern North Sea)
Abstract. Fluid flow related seafloor structures and gas seeps were detected in the North Sea in the 1970s and 1980s by acoustic sub-bottom profiling and oil rig surveys. A variety of features likeExpand
Microbial methane oxidation and sulfate reduction at cold seeps of the deep Eastern Mediterranean Sea
Abstract The Eastern Mediterranean hosts a variety of active cold seep systems, such as gas chimneys, mud volcanoes and pockmarks, in water depths of 500 to 3200 m. As part of the NAUTINIL expeditionExpand
Cold-seep assemblages on a giant pockmark off West Africa: spatial patterns and environmental control
A giant pockmark colonised by dense cold-seep assemblages near 3160 m depth along the CongoAngola margin has been surveyed by the ROV Victor 6000. The quantitative distribution of chemosyntheticExpand
Methane emission and consumption at a North Sea gas seep (Tommeliten area)
Abstract. The Tommeliten seepage area is part of the Greater Ekofisk area, which is situated above the Tommeliten Delta salt diapir in the central North Sea (56°29.90' N, 2°59.80' E, Norwegian BlockExpand
In situ fluxes and zonation of microbial activity in surface sediments of the Håkon Mosby Mud Volcano
From the Hakon Mosby Mud Volcano (HMMV) on the southwest Barents Sea shelf, gas and fluids are expelled by active mud volcanism. We studied the mass transfer phenomena and microbial conversions inExpand
Hydrothermal vents in turbidite sediments on a Northeast Pacific spreading centre: organisms and substratum at an ocean drilling site
TLDR
18 vent species new to the Juan de Fuca Ridge were documented, including two new species of vesicomyid clams and a new mussel species, which are rare elsewhere on the ridge. Expand
Macrofaunal community structure and sulfide flux at gas hydrate deposits from the Cascadia convergent margin, NE Pacific
TLDR
The rarefaction curves show a decrease in species diversity in the Beggiatoa and Calyptogena communities and the difference in the sulfide environment is a factor influencing the distribution patterns of the chemoautotrophy-dependant and heterotrophic species at the deep-sea sediments containing gas hydrate. Expand
A biomarker perspective on paleoproductivity variations in two Late Quaternary sediment sections from the Southeast Atlantic Ocean
Abstract Sedimentary inventories of selected molecular biomarkers in two sediment sections from the African continental margin below highly productive surface waters in the Southeast Atlantic ocean,Expand
Archaeal Methane Cycling Communities Associated with Gassy Subsurface Sediments of Marennes-Oléron Bay (France)
TLDR
It is shown that the acoustic turbidity upper boundary matched with X-ray facies displaying fissures with the highest methane concentrations, demonstrating the existence of methane bubbles in the sediment and integrating seismic, sedimentologic, biogeochemical and molecular genetic approaches to determine whether microbial methane cycling is involved in this process. Expand
The anaerobic oxidation of methane and sulfate reduction in sediments from Gulf of Mexico cold seeps
We determined the geochemical characteristics of sediments and measured rates of the anaerobic oxidation of methane (AOM) and sulfate reduction (SR) in samples collected near thermogenic (structureExpand
...
1
2
3
4
5
...