Results 61 to 70 of about 43,764 (236)

Biological hot spots and the accumulation of marine dissolved organic matter in a highly productive ocean margin [PDF]

, 2016
Concentrations of dissolved organic carbon (DOC) and major biochemicals (amino acids and carbohydrates) were measured during five cruises (2009–2010) to the Louisiana margin in the northern Gulf of Mexico.
Benner, Ronald, Fichot, Cedric G., Liang, Sheng-Kang, Shen, Yuan   +3 more
core   +2 more sources

On‐site pilot‐scale advanced oxidation pretreatment of hospital wastewater: assessment of pharmaceuticals, pathogens, antibiotic resistance genes and acute ecotoxicity

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Hospital premises generate wastewater containing a wide spectrum of contaminants, such as pharmaceutically active compounds (PhACs), antibiotic resistance genes (ARGs) and pathogenic microorganisms, whilst plenty of them are classified under the antibiotic resistant bacteria (ΑRΒ) category.
Andreas Kaliakatsos, Iosifina Gounaki, Spyros Dokianakis, Georgios Gkotsis, Maria‐Christina Nika, Eleni Aleiferi, Athanasios S Stasinakis, Nikos Katsarakis, Nikolaos S Thomaidis, Thrassyvoulos Manios, Michalis S Fountoulakis, Danae Venieri   +11 more
wiley   +1 more source

Rapid Down‐Slope Transport of Fresh Dissolved Organic Matter to the Deep Ocean in the Eastern North Atlantic

Geophysical Research Letters
Intense convective mixing in the central North Atlantic is a major gateway for dissolved organic matter (DOM) into the deep ocean, sustaining elevated dissolved organic carbon (DOC) concentrations.
Bingbing Wei, Michael Seidel, Gesine Mollenhauer, Alice Lefebvre, Elda Miramontes, Hendrik Grotheer, Marcus Elvert, Jenny Wendt, Thorsten Dittmar, Moritz Holtappels   +9 more
doaj   +1 more source

Impact of Tire Wear Particle (TWP)-Derived Dissolved Organic Matter (DOM) on Soil Properties and Heavy Metal Mobility

Agronomy
This study investigates the impact of tire wear particles (TWPs) and their dissolved organic matter (DOM) on soil DOM dynamics and heavy metal behavior.
Shaojun Jiang, Hao Xiao, Xue Xiao, Churong Liu, Xurong Huang, Qianxin Xiao, Junqi Wu, Xinsheng Xiao, Huayi Chen   +8 more
doaj   +1 more source

The Effects of Hurricanes and Storms on the Composition of Dissolved Organic Matter in a Southeastern U.S. Estuary

Frontiers in Marine Science, 2022
Extreme events such as hurricanes and tropical storms often result in large fluxes of dissolved organic carbon (DOC) to estuaries. Precipitation associated with tropical storms may be increasing in the southeastern U.S., which can potentially impact ...
Patricia M. Medeiros
doaj   +1 more source

Comparison between fluorometry and microscopy‐based phytoplankton assessments in the Laurentian Great Lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Photosynthetic pigment fluorescence is commonly used in limnology and oceanography as a proxy for phytoplankton biomass. Fluorometry has been used to detect subsurface algal blooms, characterize dynamics of the deep chlorophyll layer, and to provide greater vertical resolution to phytoplankton monitoring.
Katya E. Kovalenko, Euan D. Reavie, Christopher T. Filstrup, Anne Scofield, Meaghan Lightfoot, Erica Yang, Elizabeth E. Alexson   +6 more
wiley   +1 more source

Highly Integrated and Mobile Sensor System for Dissolved Organic Matter in Stream Ecosystems

Proceedings, 2018
The impact of agricultural land use on the composition of dissolved organic matter (DOM) and its effects on the aquatic carbon cycle are still largely unknown.
Thomas Posnicek, Gabriele Weigelhofer, Alexander Eder, Martin Brandl   +3 more
doaj   +1 more source

Interannual variability in the summer dissolved organic matter inventory of the North Sea: Implications for the continental shelf pump [PDF]

, 2019
We present the distribution and C:N stoichiometry of dissolved organic matter (DOM) in the North Sea in two summers (August 2011 and August 2012), with supporting data from the intervening winter (January 2012).
M. Johnson, M. Johnson, S. Chaichana, S. Chaichana, T. Jickells   +4 more
core   +2 more sources

An ultraviolet–visible spectroscopy system for studying real‐time pressure effects on enzyme activity

Limnology and Oceanography: Methods, EarlyView.
Abstract Investigations of hydrostatic pressure effects on microbial enzymatic processing are challenging but critical for understanding element cycling in the world's oceans. In this study, we developed and tested a stainless‐steel pressure cell capable of withstanding up to 110 MPa of hydrostatic pressure (equivalent to ~ 11,000 m depth), featuring ...
Maria Papadimitraki, Urban Wünsch, John Paul Balmonte, Mathias Middelboe, Colin A. Stedmon, Karl M. Attard, Ronnie N. Glud   +6 more
wiley   +1 more source

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

Limnology and Oceanography: Methods, EarlyView.
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