Assessing the utility of sulfur isotope values for understanding mercury concentrations in water and biota from high Arctic lakes

• Published in: Arctic Science
• Main Authors: Lescord, Gretchen L., Clayden, Meredith G., Kidd, Karen A., Kirk, Jane L., Wang, Xiaowa, O’Driscoll, Nelson J., Muir, Derek C.G.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 2019
• Subjects: General Earth and Planetary Sciences; General Agricultural and Biological Sciences; General Environmental Science; Arctic; Canada; Resolute Bay
• Online Access: http://dx.doi.org/10.1139/as-2018-0022; https://cdnsciencepub.com/doi/full-xml/10.1139/as-2018-0022; https://cdnsciencepub.com/doi/pdf/10.1139/as-2018-0022

Methylmercury (MeHg) biomagnifies through aquatic food webs resulting in elevated concentrations in fish globally. Stable carbon and nitrogen isotopes are frequently used to determine dietary sources of MeHg and to model its biomagnification. However, given the strong links between MeHg and sulfur c...