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Influence of precipitation, landscape and hydrogeomorphic lake features on pelagic allochthonous indicators in two connected ultraoligotrophic lakes of North Patagonia
(Elsevier Science, 2012-07)
We investigated the terrestrial influence on two chained deep ultraoligotrophic lakes of North Patagonia (Argentina) through the seasonal analysis of two pelagic allochthonous indicators: i) water color, as a proxy of ...
Extremophilic Acinetobacter Strains from High-Altitude Lakes in Argentinean Puna: Remarkable UV-B Resistance and Efficient DNA Damage Repair
(Springer, 2012-09)
High-Altitude Andean Lakes (HAAL) of the South American Andes are almost unexplored ecosystems of shallow lakes. The HAAL are recognized by a remarkably high UV exposure, strong changes in temperature and salinity, and a ...
Geochemical and mineralogical characterization of sediments from Lake Futalaufquen (42.8°S, Andean Patagonia) to evaluate their potential as paleoclimatic proxies
(Cambridge University Press, 2020-06-03)
Lake sediments are key archives for paleoenvironmental investigation as they provide continuous records of the depositional history of the lake and its watershed. Lake Futalaufquen (42.8°S) is an oligotrophic waterbody ...
Bromine as indicator of source of lacustrine sedimentary organic matter in paleolimnological studies
(Academic Press Inc Elsevier Science, 2019-07)
Bromine (Br) to organic matter (OM) concentration ratio is studied in lake sediment sequences to provide information on environmental changes modifying OM production. The sequences studied were extracted from shallow lakes ...
UV-resistant Acinetobacter sp. isolates from Andean wetlands display high catalase activity
(Wiley Blackwell Publishing, Inc, 2011-04)
Andean wetlands are characterized by their extreme environmental conditions such as high UV radiation, elevated heavy metal content and salinity. We present here the first study on UV tolerance and antioxidant defense of ...
Haloarchaea from the Andean Puna: Biological Role in the Energy Metabolism of Arsenic
(Springer, 2018-10)
Biofilms, microbial mats, and microbialites dwell under highly limiting conditions (high salinity, extreme aridity, pH, and elevated arsenic concentration) in the Andean Puna. Only recent pioneering studies have described ...
Halopeptonella vilamensis gen. nov, sp. nov., a halophilic strictly aerobic bacterium of the family Ectothiorhodospiraceae
(Springer Tokyo, 2016-01)
A Gram-negative, halophilic, heterotrophic, rod-shaped, non-spore-forming bacterium (SV525T) was isolated from the sediment of a hypersaline lake located at 4600 m above sea level (Laguna Vilama, Argentina). Strain SV525T ...
Application of the standardized precipitation evapotranspiration index (SPEI) to identify wet and drought periods in the andean and extra andean Argentinean PatagoniaAplicación del índice de precipitación evapotranspiración estandarizada (SPEI) para identificar períodos húmedos y secos en la patagonia andina y extra andina Argentina
(Universidad Estatal Paulista Júlio de Mesquita Filho, 2018-06-25)
El objetivo de la presente investigación es identificar y caracterizar los períodos de sequía y humedad en la región andina y extra andina de la cuenca del río Senguer en la Patagonia Argentina y relacionarlos con las ...
High resolution SPOT DEM over large areas in central and south Andes and observations on the 2018 Perito Moreno glacial lake outburst flood
(Comitato Glaciologico Italiano, 2020-04)
This study describes the use of multi-temporal SPOT 6 and 7 tri-stereo images for producing high resolution (3 × 3 m pixel) digital elevation models (DEM) over two large (2680 and 837 km2) mountainous and glaciated regions ...
Characterization of pustular mats and related Rivularia-rich laminations in oncoids from the Laguna Negra lake (Argentina)
(Frontiers Media S.A., 2018-05)
Stromatolites are organo-sedimentary structures that represent some of the oldest records of the early biosphere on Earth. Cyanobacteria are considered as a main component of the microbial mats that are supposed to produce ...