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Characterisation and reactivity continuum of dissolved organic matter in forested headwater catchments of Andean Patagonia
(Wiley, 2018-09)
Terrestrial inputs of dissolved organic matter (DOM) make a significant contribution to the carbon pool of headwaters and the reactivity of this pool depends on its source and diagenetic state, being influenced by photochemical ...
Differences in bacterial community-level physiological profiles between deep and shallow north-patagonian Andean lakes
(E Schweizerbartsche Verlags, 2018-12)
The utilization of carbon substrates by bacteria results in a process of great ecological significance for aquatic ecosystems. Bacteria are capable of consuming a wide range of organic molecules, but despite the highly ...
Data set of dissolved major and trace elements from the lacustrine systems of Clearwater Mesa, Antarctica
(Elsevier Inc., 2020-06)
This article presents analytical observations on physicochemical parameters and major and trace element concentrations of water, ice, and sediment samples from the lake systems of Clearwater Mesa (CWM), northeast Antarctic ...
Factors influencing the characteristics and distribution or surface organic matter in the Pacific-Atlantic connection
(Elsevier Science, 2017-11)
The present work reports the first data set on particulate organic carbon (POC) and nitrogen (PON), and the high-resolution modelling of their stable isotope variability in the Patagonian Cold Estuarine System (PCES), with ...
Melting of clean and debris-rich ice differentially affect nutrients, dissolved organic matter and bacteria respiration in the early ontogeny of the newly formed proglacial Ventisquero Negro Lake (Patagonia Argentina)
(Wiley Blackwell Publishing, Inc, 2018-11)
Climate change affects glaciers all over the world causing glacial recession with the formation of new lakes. Glaciers of Mount Tronador (41° S, Patagonia, Argentina) underwent an increase of more than 200 m in the ...
The microbial mercury link in oligotrophic lakes: Bioaccumulation by picocyanobacteria in natural gradients of dissolved organic matter
(Pergamon-Elsevier Science Ltd, 2019-09)
Andean Patagonian lakes are oligotrophic systems characterized by low dissolved organic carbon (DOC) levels and moderate to high Hg concentration that determine naturally high Hg/DOC ratios and bioavailability. In these ...
How autochthonous dissolved organic matter responds to eutrophication and climate warming: Evidence from a cross-continental data analysis and experiments
(Elsevier Science, 2018-10)
Harmful algal blooms have become increasingly frequent due to the dual pressure of excessive nutrient loading and climate change in recent years. Algal-derived dissolved organic matter (DOM) is a potentially large component ...
Autochthonous dissolved organic matter potentially fuels methane ebullition from experimental lakes
(Pergamon-Elsevier Science Ltd, 2019-12-01)
Shallow lakes are hotspots for carbon processing and important natural sources of methane (CH4)emission. Ebullitive CH4 flux may constitute the overwhelming majority of total CH4 flux, but theepisodic nature of ebullition ...
Soil carbon and belowground carbon balance of a short-rotation coppice: assessments from three different approaches
(Blackwell Publishing Ltd, 2017-02)
Uncertainty in soil carbon (C) fluxes across different land-use transitions is an issue that needs to be addressed for the further deployment of perennial bioenergy crops. A large-scale short-rotation coppice (SRC) site ...
Goose and hare faeces as a source of nutrients and dissolved organic matter for bacterial communities in the newly formed proglacial lake Ventisquero Negro (Patagonia, Argentina)
(Springer Nature, 2020-02)
Dissolved organic matter (DOM) input is a key factor for freshwater ecology, since it regulates many aspects of aquatic ecosystem metabolism. Aquatic and terrestrial animals that inhabit or frequent aquatic environments ...