Environmental biogeochemistry

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Global warming is altering the biogeochemical cycles of key elements in marine and terrestrial environments, i.e. C, S, N, P…, creating potential feedback on future climate. Understanding, monitoring and predicting these processes bear global societal and economic implications.

Our mission: 

To increase knowledge on ecosystems and biogeochemical processes in deep-sea extreme environments, i.e. methane and oil seeps, gas hydrates, and hydrothermal vents, and in shallow aquatic systems impacted by anthropogenic activities such as fjords, lakes and coastal areas. 

We combine field work (marine research expeditions, field trips), experimental studies (biological, molecular and isotopic analyses), sediment characterization (sedimentology, lithostratigraphy), and numerical models to quantify elemental fluxes through the bio-geo-hydrospheres. 

Multidisciplinary approach:

We believe in the importance of applying a multidisciplinary approach to solve scientific questions and for that reason, we include collaborations from many fields e.g., microbiology, environmental sciences, molecular biology, and geophysics. 

Research areas: 


Research objectives: 





If you are looking for funding to begin a postdoc or become a principal investigator, get in contact with us to brainstorm and develop your network! 

UiT provides support for exceptional candidates to search for funding as a postdoc or research project leader. 

- The Tromsø Research Foundation provides support for l activities to train the next generation of scientific leaders here at UiT. 

- The Arctic Marie Skłodowska-Curie - Individual Fellowships at UiT can provide an opportunity to receive training and mentorship on your MSCA-IF application to be a distinguished postdoctoral researcher in our group. 


De Groot, T., Kalenitchenko, D., Moser, M., Argentino, C., Panieri, G., Lindgren, M., Ferré, B., Svenning, M.M. and Niemann, H., 2024. Methanotroph activity and connectivity between two seep systems north off Svalbard. Frontiers in Earth Science, 12, p.1287226.

Wittig, C., Argentino, C. and Panieri, G., 2024. Formation of non-evaporitic gypsum in gas hydrate-bearing sediments at Håkon Mosby mud volcano, SW Barents sea, Marine and Petroleum Geology,

Hoff, M., Argentino, C., Huljek, L., Fiket, Ž., Mun, Y., Angeles, I.B., Palinkas, S.S. and Panieri, G., 2024. Biogeochemical impact of historical submarine mine tailings on benthic ecosystems in the Repparfjord (Northern Norway), Science of the Total Environment,

Argentino, C., Borrelli, C., Akinselure, A., Correa-Diaz, M., Panieri. G., 2024. Biogeochemical investigations of methane seepage at the ultraslow-spreading Arctic mid-ocean ridge: Svyatogor ridge, Fram Strait, Marine and Petroleum Geology, 

Panieri, G., Knies, J., Vadakkepuliyambatta, S. et al., 2023Evidence of Arctic methane emissions across the mid-Pleistocene. Commun Earth Environ, 4, 109.

Argentino, C., Kalenitchenko, D., Lindgren, M. and Panieri, G., 2023. HgCl2 addition to pore water samples from cold seeps can affect the geochemistry of dissolved inorganic carbon ([DIC], δ13CDIC). Marine Chemistry, p.104236.

Argentino, C., Lee, A., Fallati, L., Sahy, D., Birgel, D., Peckmann, J., Bünz, S. and Panieri, G., 2022. Biogeochemistry and timing of methane-derived carbonate formation at Leirdjupet Fault Complex, SW Barents Sea. Frontiers in Earth Science, p.2010.



Carlotta Radaelli, University of Milan Bicocca (Italy), M.Sc. student.

Arianna Caneva, University of Milan Bicocca (Italy), M.Sc. student.

Christoffer L. Jørgensen, University of Southern Denmark, B.Sc. student.


Marie Hoff, University of Tubingen (Germany), M.Sc. student.

Eivind Urbye Bjørnå, UiT – The Arctic University of Norway, M.Sc. student.


Abidemi Alex Akinselure, UiT – The Arctic University of Norway, M.Sc. student.

Cahrin Wittig, University of Kiel (Germany), M.Sc. student.

Federica Riva, University of Milan Bicocca (Italy), M.Sc. student.

Chiara Fusca, University of Milan Bicocca (Italy), M.Sc. student.

ROMEO – Environmental biogeochemistry

Giuliana Panieri
Centre for Arctic Gas Hydrate, Environment and Climate UiT
The Arctic University of Norway Department of Geosciences Dramsvegen 201 N-9037, Tromsø, Norway
+47 776 25191
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