Results 91 to 100 of about 4,986 (198)

The Influence of Green Manure Planting on the Spectroscopic Characteristics of Dissolved Organic Matter in Freshwater-Leached Saline–Alkali Soil at Different Depths

Agronomy
This study investigated the influence of green manure planting on the spectroscopic properties of dissolved organic matter (DOM) in saline–alkali soil under freshwater leaching conditions at different soil depths.
Yuhao Wang, Chengjie Yin, Jingkuan Wang, Xiaohui Ji, Xinwei Liu   +4 more
doaj   +1 more source

River channel connectivity shifts metabolite composition and dissolved organic matter chemistry

Nature Communications, 2019
The underlying mechanisms structuring dissolved organic matter (DOM) composition and reactivity in rivers remain poorly quantified. Here, the authors pair mass spectrometry and fluorescence spectroscopy to show that hydrology and river geomorphology both
Laurel M. Lynch, Nicholas A. Sutfin, Timothy S. Fegel, Claudia M. Boot, Timothy P. Covino, Matthew D. Wallenstein   +5 more
doaj   +1 more source

The Elusive Fraction of Marine Plankton Diversity: Size, Abundance and Taxonomic Composition of 0.2 μm‐Filterable Prokaryotes Across Three Contrasting Coastal Environments

Molecular Ecology, Volume 35, Issue 12, June 2026.
ABSTRACT The existence of prokaryotes escaping filtration through 0.2‐μm filters has been known for decades. Such ‘filterable’ prokaryotes (hereafter ‘FP’) might include true ultra‐small groups (i.e., ultramicrobacteria), but also cells that miniaturize temporally as a physiological strategy to persist under unfavourable conditions, representing a ...
Clara Ruiz‐González, Cristina Andres‐Barrao, Anders Lanzén, Laura Alonso‐Sáez, Hugh Ducklow, Josep M. Gasol, Xosé Anxelu G. Morán   +6 more
wiley   +1 more source

Into the Wild: Farm‐Derived Energy and Nutrients Enter Marine Food Webs With Carrying Capacity Implications for Aquaculture Management

Reviews in Aquaculture, Volume 18, Issue 3, June 2026.
ABSTRACT Marine aquaculture is expanding globally, yet its interactions with surrounding ecosystems remain complex and insufficiently understood. This study reviews the fluxes of energy and nutrients from three major aquaculture systems: finfish cages, suspended bivalves, and seaweed farms and considers their implications for ecosystem functioning and ...
Myriam D. Callier, Ramon Filgueira, Carrie J. Byron, Daniele Brigolin, Dror L. Angel, Sophie J. I. Koch, Bobbi Hudson, Frank Kane, Heather Moore, Antonio Agüera, Lotta C. Kluger, Christopher W. McKindsey   +11 more
wiley   +1 more source

Polystyrene microplastics facilitate formation of refractory dissolved organic matter and reduce CO2 emissions

Environment International
Microplastics, as a type of anthropogenic pollution in aquatic ecosystems, affect the carbon cycle of organic matter. Although some studies have investigated the effects of microplastics on dissolved organic matter (DOM), the impact of alterations in the
Shuting Wang, Ruihong Feng, Kai Hu, Xiangang Hu, Qian Qu, Li Mu, Jingyu Wen, Chao Ma   +7 more
doaj   +1 more source

Microbial Controls on Dissolved Organic Nitrogen Cycling During Long‐Term Degradation Experiments

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Dissolved organic nitrogen (DON) is critical for marine microbial growth by providing carbon and nitrogen. Although DON is rapidly cycled, some compounds within this pool can persist for long‐periods of time. To better understand how DON is cycled by marine microorganisms, we conducted 548‐day incubations using surface‐derived dissolved ...
Richard LaBrie, Roxane Maranger, Luc Tremblay, Jennifer Cherrier, Jean‐Eric Tremblay, Nagissa Mahmoudi   +5 more
wiley   +1 more source

Drivers of dissolved organic matter processing in subterranean estuaries

Limnology and Oceanography Letters
Subterranean estuaries (i.e., seawater‐fresh groundwater mixing zones at coastal aquifers) are highly reactive boundaries between continental groundwater and coastal surface seawater.
Elisa Calvo‐Martin, Xosé Antón Álvarez‐Salgado, María José Pazó Fernández, Vanesa Vieitez Dos Santos, J. Severino P. Ibánhez   +4 more
doaj   +1 more source

Backscattering by Particles of Sizes <0.2 μm in Seawater

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract We measured the angular scattering functions at 517 nm in different size fractions, including bulk and very small particles (VSP for diameters <0.2 μm), in a variety of waters ranging from coasts to open oceans and from surface to depths as deep as 3,000 m.
Xiaodong Zhang, Yuanheng Xiong
wiley   +1 more source

Study of the dissolved organic matter (DOM) of the Auzon cut-off meander (Allier River, France) by spectral and photoreactivity approaches. [PDF]

Environ Sci Pollut Res Int, 2020
Palma D, Sleiman M, Voldoire O, Beauger A, Parlanti E, Richard C.   +5 more
europepmc   +1 more source

Treeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes

Nature Communications
Climate change induced shifts in treeline position, both towards higher altitudes and latitudes induce changes in soil organic matter. Eventually, soil organic matter is transported to alpine and subarctic lakes with yet unknown consequences for ...
Núria Catalán, Carina Rofner, Charles Verpoorter, María Teresa Pérez, Thorsten Dittmar, Lars Tranvik, Ruben Sommaruga, Hannes Peter   +7 more
doaj   +1 more source