Specializace

The fate of organic matter (OM) in freshwater systems is essential to the understanding of the biogeochemical cycling of (OM). The cycling is known amoong many others to influence the nutrients mobility in the ecosystem and the preservation of OM by mineral oxyhydroxides influencing the global climate change phenomenon. The association of OM and Iron (Fe) oxyhdroxides mineral phases has been a topical one, as this association is beleived to form a rsuty carbon sink (presservation on a longtime scale) whiles others argues the association enhances the dissolution of Fe oxyhydroxides thereby compromising the preservation. This opens up a lot of questions with regards to how that influences the nutrient dyanamic and the over all fate of organic matter, hence my research topic being "Fate of organic matter: Nutrient dynamics and complexation with Iron oxyhydroxides". I have experience in extracting OM and the subsequent quaraterisation of OM quality using UV-VIS and Fluorescence spectroscopy, as well as preparing samples for orbitrap MS analysis.

Stručný životopis

Education:   

12/2016 - present: PhD at the department of Ecosystem Biology at the University of South Bohemia in České Budějovice, Czech Republic

05/2016: MSc in Biology (Ecology and the Environment). Linköping University, Sweden. Masters thesis: Spatial distribution of Phosphorus in Lake Hällerstådsjön; Supervisor: Anders Hargeby, PhD. ; Co supervisor: Prof. Karin S. Tonderski, PhD. 

Další informace

Publication 

Petrash, D. A., Jan, J., Sirová, D., Osafo, N. O. A., & Borovec, J. (2018). Iron and nitrogen cycling, bacterioplankton community composition and mineral transformations involving phosphorus stabilisation in the ferruginous hypolimnion of a post-mining lake. Environmental Science: Processes & Impacts, 20(10), 1414-1426.