Results 61 to 70 of about 5,840 (173)

Methane Seep Carbonates Host Distinct, Diverse, and Dynamic Microbial Assemblages [PDF]

, 2015
Marine methane seeps are globally distributed geologic features in which reduced fluids, including methane, are advected upward from the subsurface. As a result of alkalinity generation during sulfate-coupled methane oxidation, authigenic carbonates form
Case, David H., Grupe, Benjamin M., Levin, Lisa A., Marlow, Jeffrey J., Orphan, Victoria J., Pasulka, Alexis L.   +5 more
core   +3 more sources

Hard Rock Buffet: Chemosynthetic Carbon Use and Environmental Trophic Structuring of Carbonate‐Associated Macrofauna at Southern California Methane Seeps

Marine Ecology, Volume 47, Issue 2, March/April 2026.
ABSTRACT Diverse invertebrate communities inhabiting carbonate rocks at methane seeps may rely on a mix of local chemosynthetic production and sinking photosynthetic organic matter, with relative importance shaped by environmental conditions. We investigate the contribution of chemosynthetic carbon to macrofaunal diets at six Southern California ...
Olívia S. Pereira, Rachel Survilas, María Emilia Bravo, Lisa A. Levin   +3 more
wiley   +1 more source

Biogeochemical evidence of anaerobic methane oxidation on active submarine mud volcanoes on the continental slope of the Canadian Beaufort Sea [PDF]

Biogeosciences, 2018
In this study, we report lipid biomarker patterns and phylogenetic identities of key microbial communities mediating anaerobic oxidation of methane (AOM) in active mud volcanoes (MVs) on the continental slope of the Canadian Beaufort Sea.
D.-H. Lee, J.-H. Kim, Y. M. Lee, A. Stadnitskaia, Y. K. Jin, H. Niemann, H. Niemann, Y.-G. Kim, K.-H. Shin   +8 more
doaj   +1 more source

A metagenomic study of methanotrophic microorganisms in Coal Oil Point seep sediments

BMC Microbiology, 2011
Background Methane oxidizing prokaryotes in marine sediments are believed to function as a methane filter reducing the oceanic contribution to the global methane emission.
Haverkamp Thomas HA, Håvelsrud Othilde, Kristensen Tom, Jakobsen Kjetill S, Rike Anne   +4 more
doaj   +1 more source

Characterization of microbial associations with methanotrophic archaea and sulfate-reducing bacteria through statistical comparison of nested Magneto-FISH enrichments [PDF]

, 2016
Methane seep systems along continental margins host diverse and dynamic microbial assemblages, sustained in large part through the microbially mediated process of sulfate-coupled Anaerobic Oxidation of Methane (AOM).
Case, David H., Orphan, Victoria J., Trembath-Reichert, Elizabeth   +2 more
core   +4 more sources

Clumped isotopes as fingerprints of microbial methane production pathways in marine sediments

Limnology and Oceanography Letters, Volume 11, Issue 1, January 2026.
Abstract Microbial methanogenesis in marine sediments produces significant amounts of methane from various substrates; however, identifying the active pathways in situ remains challenging. While the bulk and clumped isotopic signatures of methane from different pathways have been studied in pure cultures, these are difficult to compare with complex ...
Anna J. Wallenius, Malavika Sivan, Maria E. Popa, Caroline P. Slomp, Thomas Röckmann, Mike S.M. Jetten   +5 more
wiley   +1 more source

Anaerobic Oxidation of Short-Chain Alkanes in Hydrothermal Sediments: Potential Influences on Sulfur Cycling and Microbial Diversity [PDF]

, 2013
Short-chain alkanes play a substantial role in carbon and sulfur cycling at hydrocarbon-rich environments globally, yet few studies have examined the metabolism of ethane \((C_2)\), propane \((C_3)\), and butane \((C_4)\) in anoxic sediments in contrast ...
Adams, Melissa Marie, Bose, Arpita, Girguis, Peter R., Hoarfrost, Adrienne L., Joye, Samantha B.   +4 more
core   +3 more sources

Dynamics of Iron‐Bound Organic Carbon Across Different Development Stages of Marine Cold Seeps

Global Biogeochemical Cycles, Volume 40, Issue 1, January 2026.
Abstract Marine cold seeps, where subsurface methane‐rich fluids discharge at seafloors, are “oases of life” that sustain highly active organic carbon (OC) and iron (Fe) cycling along the global continental margins. However, the interactions between Fe and OC and their impacts on the development and long‐term carbon preservation of cold seep ecosystems
Wenqi Ye, Yunru Chen, Chenxi Yang, Weikang Sui, Zian Tong, Xinyu Gu, Yanwei Wang, Zheng Xiong, Ningyuan Lu, Chuanhui Sun, Yang Wu, Xi Xiao, Lizhi Zhang, Qianyong Liang, Longhui Deng, Fengping Wang   +15 more
wiley   +1 more source

Comparative Study of Guaymas Basin Microbiomes: Cold Seeps vs. Hydrothermal Vents Sediments

Frontiers in Marine Science, 2017
In the Guaymas Basin, the presence at a few tens of kilometers of cold seeps and hydrothermal vents coupled with comparable sedimentary settings and depths offer a unique opportunity to assess and compare the microbial community composition of these deep-
Perrine Cruaud, Perrine Cruaud, Perrine Cruaud, Adrien Vigneron, Adrien Vigneron, Adrien Vigneron, Patricia Pignet, Patricia Pignet, Patricia Pignet, Jean-Claude Caprais, Françoise Lesongeur, Françoise Lesongeur, Françoise Lesongeur, Laurent Toffin, Laurent Toffin, Laurent Toffin, Anne Godfroy, Anne Godfroy, Anne Godfroy, Marie-Anne Cambon-Bonavita, Marie-Anne Cambon-Bonavita, Marie-Anne Cambon-Bonavita   +21 more
doaj   +1 more source

Rates and Microbial Players of Iron-Driven Anaerobic Oxidation of Methane in Methanic Marine Sediments

Frontiers in Microbiology, 2020
The flux of methane, a potent greenhouse gas, from the seabed is largely controlled by anaerobic oxidation of methane (AOM) coupled to sulfate reduction (S-AOM) in the sulfate methane transition (SMT).
David A. Aromokeye, David A. Aromokeye, Ajinkya C. Kulkarni, Ajinkya C. Kulkarni, Ajinkya C. Kulkarni, Marcus Elvert, Marcus Elvert, Gunter Wegener, Gunter Wegener, Susann Henkel, Susann Henkel, Sarah Coffinet, Thilo Eickhorst, Oluwatobi E. Oni, Tim Richter-Heitmann, Annika Schnakenberg, Annika Schnakenberg, Annika Schnakenberg, Heidi Taubner, Heidi Taubner, Lea Wunder, Xiuran Yin, Xiuran Yin, Qingzeng Zhu, Kai-Uwe Hinrichs, Kai-Uwe Hinrichs, Sabine Kasten, Sabine Kasten, Sabine Kasten, Michael W. Friedrich, Michael W. Friedrich   +30 more
doaj   +1 more source