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Assessment of variations in dissolved organic matter in contrasting streams in the Pampas and Patagonian regions (Argentina)
(Csiro Publishing, 2018-09)
Dissolved organic matter (DOM) is the major source of carbon in aquatic environments and may be derived from allochthonous or autochthonous sources. This study presents the first DOM characterisation in streams from two ...
The abundance of mixotrophic algae drives the carbon isotope composition of the copepod Boeckella gracilipes in shallow Patagonian lakes
(Oxford University Press, 2015-02-12)
The importance of allochthonous versus authochthonous carbon in the diet of zooplankters has been discussed at length in the recent literature, the more so for lakes with dissolved organic matter (DOM) concentrations between ...
Major differences in dissolved organic matter characteristics and bacterial processing over an extensive brackish water gradient, the Baltic Sea
(Elsevier Science, 2018-05)
Dissolved organic matter (DOM) in marine waters is a complex mixture of compounds and elements that contribute substantially to the global carbon cycle. The large reservoir of dissolved organic carbon (DOC) represents a ...
Chemically unidentified dissolved organic carbon: A pivotal piece for microbial activity in a productive area of the Northern Patagonian shelf
(Elsevier, 2021-05)
The biochemical composition and fluorescence properties of DOM were assessed in relation to phytoplankton and major aquatic bacterial clades in a regenerative area of the Argentine Shelf. DOM was mainly of autochthonous ...
Dynamic modeling of organic carbon fates in lake ecosystems
(Elsevier Science, 2018-10-24)
Lakes are active processors of organic carbon (OC) and play important roles in landscape and global carbon cycling. Allochthonous OC loads from the landscape, along with autochthonous OC loads from primary production, are ...
Dissolved organic matter as P source for biofilms in two contrasting low-order streams
(E Schweizerbartsche Verlags, 2019-12)
Forest streams receive large amounts of leaves whose leachates are an important source of dissolved organicmatter (DOM), providing not only carbon but also organic nutrients to the microbial communities in streams.I carried ...
Influence of allochthonous dissolved organic matter on pelagic basal production in a northerly estuary
(Academic Press Ltd - Elsevier Science Ltd, 2018-05)
Phytoplankton and heterotrophic bacteria are key groups at the base of aquatic food webs. In estuaries receiving riverine water with a high content of coloured allochthonous dissolved organic matter (ADOM), phytoplankton ...
Linking optical and chemical signatures of dissolved organic matter in the southern Argentine shelf: Distribution and bioavailability
(Elsevier Science, 2019-07)
Fluorescence spectroscopy is commonly used to investigate the distribution and dynamics of dissolved organic matter (DOM) in marine systems. However, the direct comparison with chemical signatures is essential to substantiate ...
Metal solubility in the rhizosphere of a co-cropping system. The role of total carbon exudation, soluble proteins and plant interaction
(Pergamon-Elsevier Science Ltd, 2021-06)
In the present study we assessed how modified rhizosphere pH and root exudation (total carbon (C) and soluble proteins released) affected lead (Pb) solubility as well as plant growth and Pb accumulation. A pot experiment ...
COD/DOC balanced models for the oxidation process of organic compounds
(Brazilian Society of Chemical Engineering, 2020-03)
Nowadays, several advanced oxidation and enzymatic processes are available for the removal of organic compounds. Mathematical models are crucial to optimize the operating conditions and to reduce the costs associated with ...