A5011975245- Microbial Community Ecology and Physiology
- Methane Hydrates and Related Phenomena
- Polar Research and Ecology
- Atmospheric and Environmental Gas Dynamics
- Marine and coastal plant biology
- Marine and coastal ecosystems
- Groundwater and Isotope Geochemistry
- Environmental Justice and Health Disparities
- Climate change and permafrost
- Coastal wetland ecosystem dynamics
- Wastewater Treatment and Nitrogen Removal
- Anaerobic Digestion and Biogas Production
- Protist diversity and phylogeny
- Genomics and Phylogenetic Studies
- Hydrology and Watershed Management Studies
- Cryospheric studies and observations
- Environmental DNA in Biodiversity Studies
- Mercury impact and mitigation studies
- Marine Biology and Ecology Research
- Climate Change and Health Impacts
- bioluminescence and chemiluminescence research
- Mining and Resource Management
- Membrane Separation Technologies
- Ocean Acidification Effects and Responses
- Zoonotic diseases and public health
Universidad de Playa Ancha de Ciencias de la Educación
2020-2024
University of Valparaíso
2020-2024
Institut Català de Ciències del Clima
2024
Institut de Ciències del Mar
2024
Consejo Superior de Investigaciones Científicas
2024
Université de Reims Champagne-Ardenne
2024
Kitasato University
2024
University of Geneva
2024
Sejong University
2024
Guangdong Technion-Israel Institute of Technology
2024
Abstract The Anthropocene is an uneven phenomenon. Accelerated shifts in the functioning of Earth System are mainly driven by production and consumption wealthy economies. Social, environmental health costs such industrialization, however, bear on low‐income communities inhabiting severely degraded territories polluting activities (i.e., sacrifice zones). How global, national local socio‐economic governance processes have interacted perpetuating socio‐environmental inequalities these has...
This study describes, for the first time, water chemistry and microbial diversity in Dziani Dzaha, a tropical crater lake located on Mayotte Island (Comoros archipelago, Western Indian Ocean). The had high level of dissolved matter alkalinity (10.6–14.5 g L-1 eq. CO32-, i.e. 160–220 mM compare to around 2–2.5 seawater), with salinity up 52 psu, 1.5 higher than seawater. Hierarchical clustering discriminated Dzaha from other alkaline, saline lakes, highlighting its thalassohaline nature....
Freshwater ecosystems are responsible for an important part of the methane (CH4) emissions which likely to change with global warming. This study aims evaluate temperature-induced (from 5 20 °C) changes on microbial community structure and methanogenic pathways in five sub-Antarctic lake sediments from Magallanes strait Cape Horn, Chile. We combined situ CH4 flux measurements, production rates (MPRs), gene abundance quantification analysis (metabarcoding 16S rRNA gene). Under unamended...
Desalination residual brines are mostly discharged to marine environments, which can produce osmotic stress on sensitive benthic organisms. In this investigation, we performed transplantation experiments nearby desalination plants using two brown macroalgae species from a cosmopolitan genus: Dictyota kunthii (Chile) and dichotoma (Spain). Parameters related photosynthetic activity oxidative were evaluated at 3 7 days for D. , 6 ; each 2 different impacted sites 1 control. We observed that...
The Aconcagua river basin (Chile, 32 °S) has suffered the effects of megadrought over last decade. severe snowfall deficiency drastically modified water supply to catchment headwaters. Despite recognized snowmelt contribution basin, an unknown streamflow buffering effect is produced by glacial, periglacial and groundwater inputs, especially in dry periods. Hence, each type source was characterized quantified for season, through combination stable isotope ionic analyses as natural tracers....
Inland aquatic ecosystems play a crucial role in the carbon cycle, acting as an interface for exchange between atmosphere, terrestrial ecosystems, and oceans. Due to their importance, dissolved organic matter (DOM) dynamics continental water bodies have been widely studied. However, most studies are limited specific sections of river basins, such headwaters or estuaries, leaving significant gap understanding continuous fluvial systems encompassing entire watershed, particularly regarding...
It is commonly assumed that methane (CH4) released by lakes into the atmosphere mainly produced in anoxic sediment and transported diffusion or ebullition through water column to surface of lake. In contrast prevailing idea, it has been gradually established epilimnetic CH4 does not originate exclusively from sediments but also locally laterally littoral zone. Therefore, cycling epilimnion hypolimnion might be as closely linked previously thought. We utilized a high-resolution method used...
Abstract High latitudes are experiencing intense ecosystem changes with climate warming. The underlying methane (CH 4 ) cycling dynamics remain unresolved, despite its crucial climatic feedback. Atmospheric CH emissions heterogeneous, resulting from local geochemical drivers, global factors, and microbial production/consumption balance. Holistic studies mandatory to capture complexity. Here, we report a large set of integrated biogeochemical data 387 samples, using concerted sampling...
The Mendoza River streamflow, South America (∼32 °S), derives almost exclusively from winter snow precipitation falling in the Andes. Almost 70% of water feeding river originates Cordillera Principal geological province. In addition to that precipitates this area, there are 951 cryoforms providing meltwater upper catchment. Given high inter-annual variability snowfall and megadrought affecting region since 2010, it is crucial quantify contribution different sources buffering runoff....
Desalination brines from direct seawater intake that get discharged to coastal areas may produce stress responses on benthic marine communities, mostly due its excess salinity, and especially sessile organisms; in this context, macroalgae have been understudied desalination ecotoxicological investigations. In study, we assessed the short- long-term cellular tolerance two brown species of genus Dictyota through controlled laboratory conditions. kunthii was collected eastern Pacific Ocean...
Abstract Methane‐cycling is becoming more important in high‐latitude ecosystems as global warming makes permafrost organic carbon increasingly available. We explored 387 samples from three high‐latitudes regions (Siberia, Alaska and Patagonia) focusing on mineral/organic soils (wetlands, peatlands, forest), lake/pond sediment water. Physicochemical, climatic geographic variables were integrated with 16S rDNA amplicon sequences to determine the structure of overall microbial communities...
Soil ecosystems are important reservoirs of biodiversity, as they the most diverse habitat on Earth. Microbial biodiversity plays key roles in many ecosystem services, including support to biogeochemical cycles. However, despite great advances understanding role soil microbiota providing benefits nature and humankind, there is still much knowledge be gained from understudied areas across globe. Indeed, underrepresentation Global South ecological studies has been suggested an gap that could...
In the central region of Chile, Mega-Drought together with demographic increase near coast threatens groundwater availability and hydrogeological functioning coastal wetlands. To understand hydric relationship between an aquifer a wetland in semi-arid Central Chile (Valparaíso, Chile), as well its geoenvironmental effects, four data collection campaigns were conducted wetland–estuary system surroundings, 2021 2022, including physical, hydrochemical, isotopic analyses (n = 16 sites) surface...
The Antarctic Peninsula is experiencing one of the highest warming rates globally. In polar regions, macroalgae thrive under extreme environmental conditions, which could worsen because future climate change scenarios, including increased ultraviolet exposure, extremely low light availability, and fluctuating temperatures, particularly in intertidal zones. To investigate potential role photoprotective antioxidant mechanisms response to increases sea surface temperatures caused by change, we...