Dissolved Organic
Rapid accretion of dissolved organic carbon in the springs of Florida: the most organic-poor natural waters
... mary production released as DOC by aquatic macrophytes (Bertilsson and Jones 2003) in all springs except Silver Springs, where net DOC increase exceeds primary produc- tion and allochthonous, land-derived DOC inputs must ...
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Biodegradability of dissolved organic carbon in permafrost soils and aquatic systems: a meta-analysis
... of dissolved organic carbon (DOC) and 6 Tg C yr −1 of par- ticulate organic carbon (POC) to the Arctic Ocean (Holmes et ...that organic carbon loading to the circum-arctic watershed may ...
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Natural diet of coral-excavating sponges consists mainly of dissolved organic carbon (DOC).
... The ability of sponges to take up and assimilate DOC [32,49] has been proposed to be crucial to maintain biodiversity and high productivity on tropical coral reefs [32]. In the so-called ‘‘sponge loop’’, analogously to ...
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Dissolved organic matter (C, N, P) on the Pernambuco coast and Fernando de Noronha archipelago (Tropical Zone of Western South Atlantic, Brazil) - A contribution to the evaluation of environmental impact
... of organic dis- solved material in aquatic environments, the decompo- sition of plant and animal material with an estimated 15 -50% loss of total biomass by post-mortem changes in the permeability of cell ...
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Cold storage as a method for the long-term preservation of tropical dissolved organic carbon (DOC)
... Fluvial fluxes of dissolved organic carbon (DOC) may represent an important loss for terrestrial carbon stores in the tropics. However, there is currently limited guidance on the preservation of tropical ...
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Dissolved Organic Carbon Determination Using FIA and Photo-Fenton Reaction
... fluorescent lamp was used as UV source. The authors reported that 99% oxidation was achieved in less than 10 minutes of irradiation. They also mentioned that the main advantages of the apparatus are the low cost and ease ...
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Bacterial degradation of dissolved organic matter released by Planktothrix agardhii (Cyanobacteria)
... particulate organic carbon ( Kokociński et ...of dissolved organic carbon (DOC) naturally by health cells (Dellamano-Oliveira et ...The dissolved organic matter (DOM) released by ...
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Dissolved Organic Nitrogen behaviour during denitrification with suspended and attached biomass
... ammonia. Dissolved organic nitrogen (DON), another important form of nitrogen, typically accounts for less than 10% of the nitrogen in the wastewater effluent (Pehlivanoglu-Mantas and Sedlak, ...
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DISSOLVED ORGANIC CARBON AND BIOAVAILABILITY OF N AND P AS INDICATORS OF SOIL QUALITY
... soil organic matter (SOM) can be associated with different soil chemical, physical and biological processes, it has been widely considered as one of the best soil quality ...of organic carbon and N, P, and ...
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Effect of biostimulation on biodegradation of dissolved organic carbon in biological filters
... labile organic carbon (LOC) to enhance the biodegradation rate of dissolved organic carbon (DOC) in biological columns was ...biodegradable dissolved organic carbon ...
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Protein analysis in dissolved organic matter: What proteins from organic debris, soil leachate and surface water can tell us - a perspective
... 4.3 Taxonomic distribution and ecosystem biology It becomes apparent from this study that the protein com- ponents of DOM from different ecosystems clearly differ in taxonomic composition. Since the protein size ...
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The impact of four decades of annual nitrogen addition on dissolved organic matter in a boreal forest soil
... The aim of this study was to assess the e ff ect of long-term mineral N addition on soil solution concentration of dissolved organic car- bon (DOC) and dissolved organic nitrogen (DON) i[r] ...
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Biologically labile photoproducts from riverine non-labile dissolved organic carbon in the coastal waters
... DOC in excess of that found in non-irradiated dark control DOC (Wetzel et al., 1995; Smith and Benner, 2005). In order to translate the experimental findings to environ- mental processes, the amounts of BLPs have been ...
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Latitudinal gradients in degradation of marine dissolved organic carbon.
... of dissolved organic carbon ...of organic carbon are largely unknown, since the vast majority of marine bacteria have not been isolated in culture, and most measurements of DOC degradation rates have ...
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Rapid accretion of dissolved organic carbon in the Springs of Florida: the most organic-poor natural waters
... Because of the remarkably low DOC concentrations in groundwater emanating as spring discharge, Florida springs are ideal systems to study organic carbon dynamics in flowing waters; dynam[r] ...
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Benthic fluxes of dissolved organic nitrogen in the Lower St. Lawrence Estuary and implications for selective organic matter degradation
... flux, dissolved O 2 concentration, and sediment POM reactivity, suggest a rather tight balance between production and con- sumption of labile DOC within the sediment, irrespective of the overall benthic activity ...
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Dissolved organic carbon (DOC) in Arctic ground ice
... of organic matter of the host material. When studying organic matter cycling in permafrost areas we have to abandon the paradigm, which holds true for temperate regions and Arctic oceanography, that old OC ...
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Sources and transfer mechanisms of dissolved organic matter during storm and inter-storm conditions in a lowland headwater catchment: constraints from high-frequency molecular data
... Those data on lignin phenols highlight a modification in the DOM composition with less- degraded lignins being mobilized during storm events. Since those modifications were correlated with the amount of suspended ...
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A molecular perspective on the ageing of marine dissolved organic matter
... ther represents one compound or several compounds with similar degradation rates. A recent study by Witt et al. (2009) shows that the structural variability of a single elemen- tal formula in the FT-ICR mass spectra is ...
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Seasonal variations in concentration and composition of dissolved organic carbon in Tokyo Bay
... (Fig. 2b). The RDOC concentrations did not vary greatly between observation months, and a good linear relationship between BDOC and DOC was observed (R 2 = 0.976, p < 0.001, slope = 1.16), indicating that the seasonal ...
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