Results 51 to 60 of about 2,961 (133)

High-throughput analysis of ammonia oxidiser community composition via a novel, amoA-based functional gene array. [PDF]

PLoS ONE, 2012
Advances in microbial ecology research are more often than not limited by the capabilities of available methodologies. Aerobic autotrophic nitrification is one of the most important and well studied microbiological processes in terrestrial and aquatic ...
Guy C J Abell, Stan S Robert, Dion M F Frampton, John K Volkman, Farhan Rizwi, József Csontos, Levente Bodrossy   +6 more
doaj   +1 more source

Nitrous oxide emissions from ephemeral wetland soils are correlated with microbial community composition

Frontiers in Microbiology, 2011
Nitrous oxide (N2O) is a greenhouse gas with a global warming potential far exceeding that of CO2. Soil N2O emissions are a product of two microbially mediated processes: nitrification and denitrification.
Wai eMa, Richard eFarrell, Steven eSiciliano   +2 more
doaj   +1 more source

Abalone Gut Microbiome Regulators: A Review Synthesizing Gut Physiology, Microorganisms, Diet and the Environment

Aquaculture, Fish and Fisheries, Volume 6, Issue 4, August 2026.
ABSTRACT Abalone are economically, ecologically and culturally significant marine molluscs, with both wild and farmed populations under pressure due to intrinsic and extrinsic stressors. Abalone performance and health are centred on a highly specialized digestive system supported by a diverse gut microbiome, which enables nutrient assimilation ...
Jinchen Guo, Leonie Venter, Donnabella C. Lacap‐Bugler, Andrea C. Alfaro   +3 more
wiley   +1 more source

Nutritional Composition of African Catfish (Clarias gariepinus) in Ghana: Effects of Culture Conditions, Feed and Processing

Aquaculture, Fish and Fisheries, Volume 6, Issue 4, August 2026.
This review synthesizes current evidence on the nutritional composition of African catfish (Clarias gariepinus), with emphasis on Ghanaian aquaculture. The species is a valuable source of high‐quality protein, essential amino acids, minerals and vitamins, although lipid composition varies widely.
Amy Atter, Naomi Taye, Crossby Osei Tutu, Bernard Kwabena Asiedu, Reuben Acheampong, Hayford Ofori, Stephen Nketia, Richard Yaw Otwey, Christopher Galley, Frank Peget, Jackline Boateng, Patricia Mensah, Stacy Ayitey, Eric Dogbey, Seth Agyakwah, Wisdom Amoa‐Awua   +15 more
wiley   +1 more source

The Effects of Microplastics and Additives on Ecosystem Function, Structure, and Signaling

Global Change Biology, Volume 32, Issue 8, August 2026.
Microplastics disrupt ecosystem signaling through olfactory traps, altering predator–prey signaling and disrupting microbial communication and quorum sensing. ABSTRACT Microplastics (MPs) and their associated chemical additives are pervasive contaminants whose ecological impacts extend beyond organismal toxicity to fundamentally alter ecosystem ...
Sally Gaw, Maia Raymundo, Ciemon F. Caballes   +2 more
wiley   +1 more source

Genetic and transcriptional profiles of ammonia oxidizing communities in Bohai sediments: abundance, activity, and environmental correlations

Frontiers in Microbiology
Ammonia oxidation, a crucial part in nitrogen cycle, is thought to be jointly driven by ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB), and complete ammonia oxidation (comammox) in the ocean.
Yining Jiang, Xue Lou, Mingyang Wang, Minggang Zheng, Zhiyao Wang, Hui Chen   +5 more
doaj   +1 more source

Substrate‐driven enrichment and eDNA metabarcoding reveal indigenous microbiomes in mangrove sediments with potential for ammonia and nitrite transformation

Journal of the World Aquaculture Society, Volume 57, Issue 4, August 2026.
Abstract Effective management of ammonia and nitrite remains a major challenge in intensive shrimp aquaculture, where excessive nitrogen loading compromises water quality and animal health. Indigenous microbial communities inhabiting mangrove sediments are widely considered potential sources of ammonia‐ and nitrite‐transforming microorganisms; however,
Muhamad Amin, Hussein Taha, Norhayati Ahmad, Ledhyane Ika Harlyan, Agustina Agustina, Ren Fitriadi, Supono Supono, Takaomi Arai   +7 more
wiley   +1 more source

Diversity and Abundance of Ammonia-Oxidizing Bacteria and Archaea in a Freshwater Recirculating Aquaculture System

Hayati Journal of Biosciences, 2018
The role of ammonia-oxidizing bacteria and archaea was evaluated using amoA gene in a freshwater recirculating system. Broken earthen pot pieces (BEP) were used as filter bed material.
Cherita Devi Khangembam, Jai Gopal Sharma, Rina Chakrabarti   +2 more
doaj   +1 more source

Chemical Speciation Defines Archaeal Ammonia‐Oxidizer Distribution in Yellowstone Hot Springs

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract The hot springs of Yellowstone National Park (YNP) provide a natural laboratory for investigating the influence of chemical speciation and energy availability on the distribution of microbes. Among 133 inorganic chemotrophic energy supplies, total dissolved ammonia oxidation was consistently one of the highest across 63 YNP hot spring samples.
Katelyn Weeks, Elizabeth Trembath‐Reichert, Jordyn Robare, R. Vince Debes II, Alta E. G. Howells, Everett Shock   +5 more
wiley   +1 more source

Marine Microbial Gene Abundance and Community Composition in Response to Ocean Acidification and Elevated Temperature in Two Contrasting Coastal Marine Sediments

Frontiers in Microbiology, 2017
Marine ecosystems are exposed to a range of human-induced climate stressors, in particular changing carbonate chemistry and elevated sea surface temperatures as a consequence of climate change. More research effort is needed to reduce uncertainties about
Ashleigh R. Currie, Karen Tait, Helen Parry, Beatriz de Francisco-Mora, Natalie Hicks, A. Mark Osborn, A. Mark Osborn, Steve Widdicombe, Henrik Stahl, Henrik Stahl   +9 more
doaj   +1 more source