Results 91 to 100 of about 363 (122)
In situ quantification of biogeochemicalprocesses at cold seeps [PDF]
This thesis focuses on the interaction between microbiology and geochemistry, and the physical driving forces for the biogeochemical cycles in the near-surface sediments of cold seeps. Cold seeps are extraordinary players in the marine realm, harboring a
Lichtschlag, Anna, Lichtschlag, A.
core
In situ Quantifizierung biogeochemischer Prozesse an Cold Seeps
This thesis focuses on the interaction between microbiology and geochemistry, and the physical driving forces for the biogeochemical cycles in the near-surface sediments of cold seeps. Cold seeps are extraordinary players in the marine realm, harboring a
Lichtschlag, Anna
core
The underappreciated role of chemoautotrophy in the Geodia parva holobiont
openaire +1 more source
Contribution of ammonia oxidation to chemoautotrophy in Antarctic coastal waters
Tolar, Bradley B,; Ross, Meredith J,; Wallsgrove, Natalie J,; Liu, Qian,; Aluwihare, Lihini I,; Popp, Brian N,; Hollibaugh, James T,
core
Sulfide diffusion and chemoautotrophy requirements in an extremophilic worm tube
Le Bris, N. +3 more
core +1 more source
Chemoautotrophy in the ocean [PDF]
Organic matter recycling releases ammonium, and under anoxic conditions, other reduced metabolites that can be used by chemoautotrophs to fix inorganic carbon. Here I present an estimate for the global rate of oceanic carbon fixation by chemoautotrophs (0.77 Pg C y−1).
J J Middelburg
exaly +7 more sources
Nitrogen fixation in distinct microbial niches within a chemoautotrophy-driven cave ecosystem [PDF]
Abstract Microbial sulfur and carbon cycles in ecosystems driven by chemoautotrophy—present at deep-sea hydrothermal vents, cold seeps and sulfidic caves—have been studied to some extent, yet little is known about nitrogen fixation in these systems.
Mahesh S Desai, Sharmishtha Dattagupta
exaly +5 more sources
Contribution of ammonia oxidation to chemoautotrophy in Antarctic coastal waters [PDF]
Abstract There are few measurements of nitrification in polar regions, yet geochemical evidence suggests that it is significant, and chemoautotrophy supported by nitrification has been suggested as an important contribution to prokaryotic production during the polar winter.
Lihini Aluwihare +2 more
exaly +7 more sources
Abstract The Cariaco Basin is the world's largest truly marine anoxic basin. We have conducted a comprehensive multidisciplinary investigation of the water column (42–750 m) bracketing the redox boundary (a 250-m thick “chemocline”) of the Cariaco Basin to evaluate linkages between lipid biomarkers, distributions of major dissolved chemical species ...
James Saenz +2 more
exaly +5 more sources

