Hannu Marttila¹, Jeffrey M Welker^2,3, Pertti Otto Antero Ala-aho¹, Kaisa-Riikka Mustonen⁴, Hannah Bailey⁴, Filip Muhic¹, Kashif Noor¹, Eric S Klein⁵ and Bjørn Kløve¹, (1)University of Oulu, Water, Energy and Environmental Engineering Research Unit, Oulu, Finland, (2)University of Alaska Anchorage, Department of Biological Sciences, Anchorage, AK, United States, (3)University of Oulu & UArctic, Ecology and Genetics Research Unit, Oulu, Finland, (4)University of Oulu, Ecology and Genetics Research Unit, Oulu, Finland, (5)University of Alaska Anchorage, Geological Sciences, Anchorage, AK, United States