Results 91 to 100 of about 363 (122)

In situ quantification of biogeochemicalprocesses at cold seeps [PDF]

open access: yes, 2009
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

open access: yes, 2009
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  

Contribution of ammonia oxidation to chemoautotrophy in Antarctic coastal waters

open access: yes, 2020
Tolar, Bradley B,; Ross, Meredith J,; Wallsgrove, Natalie J,; Liu, Qian,; Aluwihare, Lihini I,; Popp, Brian N,; Hollibaugh, James T,
core  

Chemoautotrophy in the ocean [PDF]

open access: yesGeophysical Research Letters, 2011
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]

open access: yesISME Journal, 2013
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]

open access: yesISME Journal, 2016
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

Chemoautotrophy

open access: yes, 2012
Annette Engel
exaly   +3 more sources

Biomarkers, chemistry and microbiology show chemoautotrophy in a multilayer chemocline in the Cariaco Basin

open access: yesDeep-Sea Research Part I: Oceanographic Research Papers, 2012
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

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