1. Alaska Stable Isotope FacilityWater and Environmental Research Center, Institute of Northern Engineering, University of Alaska FairbanksFairbanks Alaska USA
2. College of Fisheries and Ocean SciencesUniversity of Alaska Fairbanks Fairbanks Alaska USA
3. Biology and Wildlife DepartmentUniversity of Alaska Fairbanks Fairbanks Alaska USA
4. Center for Alaska Native Health ResearchInstitute of Arctic Biology, University of Alaska Fairbanks Fairbanks Alaska USA
5. Faculty of Agricultural and Environmental SciencesMcGill University, Sainte‐Anne‐de‐Bellevue Quebec Canada
6. Institute for Interdisciplinary Mountain Research (ÖAW‐IGF) Innsbruck Austria
7. Aquatic Contaminants Research DivisionEnvironment Canada, BurlingtonOntario Canada