The common eider (Somateria mollissima) is an abundant sea duck breeding around the circumpolar Arctic, and is an important component of subsistence and sport harvest in some regions. We determined hepatic cadmium (Cd) and zinc (Zn) concentrations in the livers of breeding females sampled during three time periods including 1992/3, 2001/2 and 2008 at three sites spanning 53.7°N-75.8°N in the eastern Canadian Arctic. At all sites, concentrations of both Cd and Zn increased ~. 300% over this time period. The reasons for this rapid increase in concentrations are unclear.

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Keywords Cadmium, Common eider, Somateria mollissima, Zinc
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Journal Science of the Total Environment
Mallory, M.L. (Mark L.), Braune, B.M, Robertson, G.J. (Gregory J.), Gilchrist, H.G, Mallory, C.D. (Conor D.), Forbes, M, & Wells, R. (Regina). (2014). Increasing cadmium and zinc levels in wild common eiders breeding along canada's remote northern coastline. Science of the Total Environment, 476-477, 73–78. doi:10.1016/j.scitotenv.2013.12.102