Results 81 to 90 of about 4,986 (198)

Carbon source and weather in coastal North Carolina

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract The increasing frequency of extreme weather events, including tropical cyclones, is altering the delivery and quality of organic matter (OM) exported from landscapes to estuaries. However, the mechanisms regulating these shifts, especially during multi‐year climatic oscillations, remain poorly understood.
Christopher L. Osburn, Thomas S. Bianchi, Hans W. Paerl, Nathan S. Hall, Alexandria G. Hounshell, Jacob C. Rudolph, Ruchi Bhattacharya, Ryan W. Paerl   +7 more
wiley   +1 more source

DNA-stable isotope probing (DNA-SIP) identifies marine sponge-associated bacteria actively utilizing dissolved organic matter (DOM). [PDF]

Environ Microbiol, 2021
Campana S, Busch K, Hentschel U, Muyzer G, de Goeij JM.   +4 more
europepmc   +1 more source

Applicability of the steady‐state oxygen stable isotope method for estimating metabolism in low‐productivity Arctic lakes

Limnology and Oceanography: Methods, Volume 24, Issue 6, June 2026.
Abstract Metabolism is a key property of lake ecosystem functioning, but logistical challenges make it difficult to estimate across remote regions. The steady‐state dissolved oxygen (DO) stable isotope method (18O method) estimates metabolism from discrete water samples and thus enables large‐scale surveys.
Fredrik Alriksson, Marcus Klaus, Cristian Gudasz, Matthew Bogard, Gerard Rocher‐Ros, Dominic Vachon, Jan Karlsson   +6 more
wiley   +1 more source

Closely related phytoplankton species produce similar suites of dissolved organic matter

Frontiers in Microbiology, 2014
Production of dissolved organic matter (DOM) by marine phytoplankton supplies the majority of organic substrate consumed by heterotrophic bacterioplankton in the sea.
Jamie William Becker, Jamie William Becker, Paul M Berube, Christopher L Follett, John B Waterbury, Sallie W Chisholm, Sallie W Chisholm, Edward F DeLong, Edward F DeLong, Daniel J Repeta   +9 more
doaj   +1 more source

Organic Matter Stoichiometry Regulates the Continental Shelf Carbon Pump Efficiency of the Northwest European Shelf Seas

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Variations in the elemental C:N:P ratios of organic matter (OM) influence the coupling of carbon and nutrient cycles in the ocean. In this study, we assess the relevance of OM C:N:P stoichiometry for regional carbon cycling in the northwest European shelf seas (NWES).
K. T. Demir, M. Mathis, J. Kossack, F. Liu, U. Daewel, C. Stegert, H. Thomas, C. Schrum   +7 more
wiley   +1 more source

Dissolved organic matter (DOM) release by phytoplankton in the contemporary and future ocean [PDF]

European Journal of Phycology, 2014
The partitioning of organic matter (OM) between dissolved and particulate phases is an important factor in determining the fate of organic carbon in the ocean. Dissolved organic matter (DOM) release by phytoplankton is a ubiquitous process, resulting in 2–50% of the carbon fixed by photosynthesis leaving the cell.
openaire   +1 more source

Dissolved Organic Matter (DOM) Dynamics at the Sediment‐Water Interface in the North Sea: Implications for Global Benthic DOM Fluxes

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Sediment–water exchange of dissolved organic matter (DOM) represents a critical yet poorly constrained component of the marine carbon cycle. Here, we combine quantitative, molecular, and carbon isotope (δ13C and F14C) analyses to investigate the production, composition, and export of porewater DOM in the German Bight, North Sea, and evaluate ...
Bingbing Wei, Hannelore Waska, Zhe Zhou, Ding He, Hendrik Grotheer, Manuel Ruben, Gesine Mollenhauer, Marcus Elvert, Moritz Holtappels   +8 more
wiley   +1 more source

Investigating Fine Particulate Matter in Streams Uncovers Peak Bacterial Activity in Agricultural Streams and on the Finest Particles

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract The processing of organic matter (OM) in stream ecosystems is a key component of the fluvial carbon cycle. While research has largely focused on the cycling of dissolved OM (DOM), suspended particles are increasingly recognized as active sites of OM cycling.
L. Haferkemper, G. Steniczka, S.‐K. Kämmer, M. J. Kainz, K. Attermeyer   +4 more
wiley   +1 more source

Microbial Ecology of the Heterogeneous Terrestrial Deep Biosphere Over 4 years in the Deep Mine Microbial Observatory (DeMMO)

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract The deep continental subsurface hosts a large, diverse, and poorly characterized microbiome. The geochemistry and microbiology of deep subsurface sites are closely linked and influenced by geological, hydrological, and anthropogenic factors. The Deep Mine Microbial Observatory (DeMMO; Lead, SD) was established in 2015 to provide stable portals
Magdalena R. Osburn, Caitlin P. Casar, Bradley S. Stevenson, Matthew Selensky, Brittany Kruger, Lily M. Momper, Theodore M. Flynn, Jan P. Amend   +7 more
wiley   +1 more source

Temperature‐Dependent Effects of Laboratory‐Heated Dissolved Organic Matter on Aquatic Microbiome Composition and Nitrogen Cycling Dynamics

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract Wildfires generate partially combusted biomass that mobilizes to aquatic ecosystems as dissolved pyrogenic organic matter (dPyOM) in runoff, where it can impact surface water quality. However, the influence of dPyOM on aquatic microbiome composition, functional gene distribution, and biogeochemical processes remains poorly understood, with ...
Saraf Islam Promi, Nichole M. Grey, Bailley Hardage, Courtney M. Gardner   +3 more
wiley   +1 more source