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Regional-scale variation of dissolved organic carbon concentrations in Swedish lakes
Organic carbon lakes
2014/10/16
We assessed spatial variability in dissolved organic carbon (DOC) concentrations measured in nearly 2000
Swedish lakes. Inter-lake variance peaked at two different scales, representing within-region ...
The spectral slope coefficient of chromophoric dissolved organic matter (S275–295) as a tracer of terrigenous dissolved organic carbon in river-influenced ocean margins
The spectral slope coefficient chromophoric dissolved organic matter S275–295 tracer of terrigenous dissolved organic carbon river-influenced ocean margins
2014/4/4
The present study demonstrates that the spectral slope coefficient of chromophoric dissolved organic matter (CDOM) between 275 nm and 295 nm (S275–295) can be used as a tracer of the percent terrigeno...
Dissolved carbon dioxide concentration controls baseline stable carbon isotope signatures of a lake food web
Dissolved carbon dioxide concentration controls baseline stable carbon isotope signatures a lake food web
2014/4/4
Temporal variation in the baseline stable carbon isotope (δ13C) value of a well-studied, productive lake was examined over a 26-yr period using archived samples of the herbivorous zooplankter Daphnia ...
Floodplain influence on dissolved organic matter composition and export from the Mississippi–Atchafalaya River system to the Gulf of Mexico
Floodplain influence dissolved organic matter composition export from the Mississippi–Atchafalaya River system Gulf of Mexico
2014/4/4
Comparisons of the concentrations and compositions of dissolved organic matter (DOM) between the lower Mississippi River (MR) and its distributary, the Atchafalaya River (AR), indicated a strong influ...
Discharge of dissolved black carbon from a fire-affected intertidal system
Discharge of dissolved black carbon from a fire-affected intertidal system
2014/4/4
We report substantial tidal fluxes of dissolved black carbon (DBC) in a fire-affected marsh in the northern Gulf of Mexico. DBC was molecularly determined as benzenepolycarboxylic acids in a tidal cre...
High concentrations of mycosporine-like amino acids and colored dissolved organic matter in the sea surface microlayer off the Iberian Peninsula
High concentrations of mycosporine-like amino acids colored dissolved organic matter the sea surface microlayer off Iberian Peninsula
2014/4/16
Mycosporine-like amino acids (MAAs), phytoplankton pigments, and inherent optical properties were analyzed in sea surface microlayer (SSM), near-surface (0–2 m), and subsurface (0–110 m) samples from ...
Dissolved Organic Matter in the Ocean: A Controversy Stimulates New Insights
Carbon emissions atmosphere ocean dissolved organic matter carbon sequestration Marine geochemistry
2015/7/6
Containing as much carbon as the atmosphere, marine dissolved organic matter is one of Earth's major carbon reservoirs. With invigoration of scientific inquiries into the global carbon cycle, our igno...
Dissolved oxygen response to wind–inflow interactions in a stratified reservoir
Dissolved oxygen response wind–inflow interactions
2014/4/22
Results of a field campaign and numerical simulations are used to show how physical mechanisms impose
length scales and timescales that determine the dominant biogeochemical process. As an example, t...
Light-stimulated production of dissolved DMSO by a particle-associated process in the Ross Sea, Antarctica
Light-stimulated production dissolved DMSO a particle-associated process the Ross Sea Antarctica
2014/4/21
Dimethylsulfoxide (DMSO) is an abundant form of methylated sulfur in marine systems and it is known to be produced from dimethylsulfide (DMS). Using radiolabeled 35S-DMS and gas chromatography techniq...
Variation in colloidal chromophoric dissolved organic matter in the Damariscotta Estuary, Maine
Variation in colloidal chromophoric dissolved organic matter the Damariscotta Estuary, Maine
2014/4/22
The relationship between chromophoric dissolved organic matter (CDOM), colloidal DOM (.1 kDa), and phytoplankton biomass in marine waters of the Damariscotta estuary, Maine, was studied using flow fie...
Photo-oxidation of dissolved organic matter in river water and its effect on trace element speciation
Photo-oxidation dissolved organic matter in river water trace element speciation
2014/5/4
To investigate the effect of photodegradation of fluvial dissolved organic matter (DOM) on dissolved trace element distributions, we performed a 3-week incubation of water from the lower Pearl River (...
Dissolved and particulate organic matter source-age characterization in the upper and lower Chesapeake Bay: A combined isotope and biochemical approach
Dissolved and particulate organic matter source-age characterization the upper and lower Chesapeake Bay A combined isotope and biochemical approach
2014/5/4
In order to characterize the sources and ages of organic matter contributing to river and estuarine outflow waters, the present study investigated Δ14C and δ13C signatures of the major operationally d...
Molecular-level chemical characterization and bioavailability of dissolved organic matter in stream water using electrospray-ionization mass spectrometry
Molecular-level chemical characterization bioavailability dissolved organic matter stream water electrospray-ionization mass spectrometry
2014/5/8
We used electrospray-ionization mass spectrometry (ESI-MS) to characterize, at the compound level, dissolved organic matter (DOM) composition and bioavailability in two streams. There was considerable...
The role of the picoeukaryote Aureococcus anophagefferens in cycling of marine high-molecular weight dissolved organic nitrogen
picoeukaryote Aureococcus anophagefferens marine high-molecular weight dissolved organic nitrogen
2014/5/21
Environmental evidence suggests that Aureococcus anophagefferens (Pelagophyceae), a eukaryotic picoplankton that blooms in coastal seawaters, can outcompete other organisms because of its ability to u...
Distribution of particulate, colloidal, and dissolved mercury in San Francisco Bay estuary. 2. Monomethyl mercury
particulate colloidal dissolved mercury
2014/5/21
The phase speciation and estuarine behavior of monomethyl mercury (MeHg) were determined in surface waters
of the San Francisco Bay estuary in September–October 2000 (low flow) and March 2001 (...