dr. J.R. Paranaiba Vilela a Teixeira (José)
Medewerker - Aquatic Ecology and Environmental Biology
6525 AJ NIJMEGEN
Interne postcode: 31
6500 GL NIJMEGEN
I’m a biologist, with a PhD degree in Ecology (Federal University of Juiz de Fora - Brazil). I'm currently a postdoctoral researcher at the Aquatic Ecology and Environmental Biology department (RU), and my academic and professional expertise is based on Limnology, aquatic and sedimentary biogeochemistry, greenhouse gas emissions, climate change effects, and environmental impact assessments. I’m also interested in applied science with the aim of studying scientific tools that can help to mitigate anthropogenic impacts on freshwater environments, with a focus on reducing greenhouse gas emissions from aquatic environments and sludge depots.
- Paranaíba JR, Aben R, Barros N,... Kosten S. 2021. Cross-continental importance of CH4 emissions from dry inland-waters. Science of the Total Environment, 1-11. Volledige tekst
- Linkhorst A, Paranaíba JR, Mendonça R, Rudberg D, DelSontro T, Barros N, Sobek S. 2021. Spatially resolved measurements in tropical reservoirs reveal elevated methane ebullition at river inflow areas and at high productivity. Global Biogeochemical Cycles, 35, 5, 1-16. Volledige tekst
- Paranaíba JR, Barros N, Almeida RM, Linkhorst A, Mendonça R, do Vale R, Roland F, Sobek S. 2021. Hotspots of diffusive CO2 and CH4 emission from tropical reservoirs shift through time. Journal of Geophysical Research – Biogeosciences, 126, 4, 1-19. Volledige tekst
- Almeida R*, Paranaíba JR*, Sobek S, Barbosa I, Kosten S, Linkhorst A, Mendonça R, Quadra G, Roland F, Barros N. 2019. Carbon dioxide emission from drawdown areas of a Brazilian reservoir is linked to surrounding land cover . Aquatic Sciences, 81, 1-9. *contributed equally to the manuscript. Volledige tekst
- Paranaíba JR, Barros N, Mendonça M, Linkhorst A, Isidorova A, Roland F, Almeida R, Sobek S. 2018. Spatially resolved measurements of CO2 and CH4 concentration and gas exchange velocity highly influence carbon emission estimates of reservoirs. Environmental Science & Technology, 52, 607-615. Volledige tekst
- 2021 - 2025 “Decreasing greenhouse gas emissions from surface waters by climate-smart water management (DIGS)” In this project, we aim to quantify greenhouse gas (GHG) emissions and carbon burial in different types of shallow inland waters in the Netherlands. In addition, we will also identify the environmental drivers responsible for these emissions and carbon storage in order to produce (heat) maps with national greenhouse gas emissions. These pieces of knowledge will be further used to develop robust mitigation strategies to reduce GHG emissions and maximize carbon storage in aquatic environments. My role in the project is mainly related to fieldwork activities and laboratory experiments related to the production and emission of CO2, CH4, and N2O, as well as processes linked to carbon burial in the sediments of these aquatic environments.
- 2014 - 2020 "Towards a new understanding of carbon processing in freshwaters: methane emission hot spots and carbon burial in tropical reservoirs (HYDROCARB)" HYDROCARB investigates the carbon and greenhouse gas balance of tropical hydropower reservoirs. Financed through the European Research Council (2014-2020), it is a joint research project of Limnology program at Uppsala Univeristy (SWE) and the Aquatic Ecology Laboratory at the Federal University of Juiz de Fora (BRA). Even though the financing period has ended, the team is still active and productive. HYDROCARB creates new understanding of reservoir carbon cycling by studying 1) CO2 and CH4 emission at high spatial resolution, and across temporal scales. Carbon burial in reservoir sediments 2) The sources of organic matter that fuel CH4 production in sediments. The aim is to establish new carbon and greenhouse gas budgets of tropical reservoirs, and to make the new knowledge available to both scientists and stakeholders. Meer informatie
- 2022 - 2023 "Quantification and mitigation of GHG emissions from dredged sediments: from in situ assessments to laboratory assays" In this project, we intend to quantify CO2, CH4, and N2O emissions from sediments (also known as sludge) dredged from agricultural ditches in the southeast of the Netherlands, which were left to dry under atmospheric conditions. The project consists of the in-situ monitoring of these climatically-important gases, as well as other environmental variables, throughout the entire cycle of drying. In addition, we investigate the role of environmental events (eg emergence of vegetation over the drying sludge and periods of rain) on GHG dynamics. Ultimately, we also study techniques that can mitigate GHG emissions from outdoor drying sludge (such as the addition of chemicals and keeping the sludge inundated) in order to reduce the climate impacts of dredging.