Results 61 to 70 of about 5,069 (142)
Frontiers in Microbiology, 2011 A cold methane-seep was discovered in a forearc sediment basin off the island Sumatra, exhibiting a methane-seep adapted microbial community. A defined seep centre of activity, like in mud volcanoes, was not discovered.
Michael eSiegert +4 more
doaj +1 more source
Rapid Communications in Mass Spectrometry, Volume 39, Issue 22, 30 November 2025.ABSTRACT Rationale The stable carbon isotopic composition (δ13C) of individual lipids is of great value in studying carbon cycling. Among those, microbial lipids in sediments impacted by high methane turnover stand out due to their uniquely depleted isotopic fingerprint.
Janina Groninga +3 more
wiley +1 more source
Environmental Microbiology, Volume 27, Issue 11, November 2025.The first metagenome‐assembled genomes (MAGs) from Guerrero Negro hypersaline microbial mats were recovered from natural and incubated samples. These MAGs include dominant and rare taxa, whose metabolic potential provides clues to metabolic versatility in the cycling of three elements (carbon, sulfur, and nitrogen) at the genome and community levels ...
Miguel A. Martínez‐Mercado +5 more
wiley +1 more source
Journal of Clinical Nursing, Volume 34, Issue 11, Page 4630-4641, November 2025.ABSTRACT Aims To explore the association of the Geriatric Nutritional Risk Index (GNRI) with in‐hospital mortality and costs in older inpatients and to compare these associations between cancer and non‐cancer patients to inform clinical practice. Design Retrospective observational study.
Lujiao Huang +8 more
wiley +1 more source
Miniaturized biosignature analysis reveals implications for the formation of cold seep carbonates at Hydrate Ridge (off Oregon, USA) [PDF]
Biogeosciences, 2008 Methane-related carbonates from Hydrate Ridge typically show several macroscopically distinguishable mineral phases, namely whitish aragonite, lucent aragonite, and gray micrite.
T. Leefmann +5 more
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Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.Abstract Here, we present organic geochemical evidence of past methane‐seepage events in a sediment core retrieved from a recently discovered methane cold‐seep site off Mannar Basin, east coast of India. The significant negative C‐isotope excursion of organic matter (δ13CTOC) in the seep core compared to a reference non‐seep core suggests a substantial
Ankita Ghosh +7 more
wiley +1 more source
Sulfur Isotope Biogeochemistry Controlled by Sulfate Reduction Activity in Cold Seep Sediments
Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.Abstract Cold seeps are unique deep‐sea ecosystems that play an important role in marine biogeochemical cycles. However, the dynamics and regulation of sulfur isotope biogeochemistry in seep sediments remain unconstrained. We investigated the geochemical characteristics of active seep sites, including the content and stable isotope composition of ...
Bing‐Zheng Wu +8 more
wiley +1 more source
Methane emission and consumption at a North Sea gas seep (Tommeliten area) [PDF]
Biogeosciences, 2005 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 Block 1/9, 75 m water depth).
H. Niemann +13 more
doaj
An experimental study on short-term changes in the anaerobic oxidation of methane in response to varying methane and sulfate fluxes [PDF]
Biogeosciences, 2009 A major role in regulation of global methane fluxes has been attributed to the process of anaerobic oxidation of methane (AOM), which is performed by consortia of methanotrophic archaea and sulfate reducing bacteria.
G. Wegener, A. Boetius
doaj
Wiener entomologische Zeitung., 1885 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources