Trophic structure and mercury transfer in the subarctic fish community of Great Slave Lake, Northwest Territories, Canada

• Published in: Journal of Great Lakes Research
• Main Authors: Rohonczy, J. (Jillian), Cott, P.A. (Peter A.), Benwell, A. (Amanda), Forbes, M. (Mark), Robinson, S.A. (Stacey A.), Rosabal, M. (Maikel), Amyot, M. (Marc), Chételat, J. (John)
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2019
• Subjects: Arctic; Food web; Foraging behaviour; Great lake; Mercury; Stable isotopes; Canada; Great Slave Lake; Northwest Territories; Yellowknife; Subarctic
• Online Access: https://ir.library.carleton.ca/pub/26055; https://doi.org/10.1016/j.jglr.2019.12.009

In recent decades, mercury concentrations have increased in fish of Great Slave Lake (GSL), a subarctic great lake in northern Canada with important recreational, subsistence, and commercial fisheries. This study characterized habitat use and trophic position of common fish species in GSL near the City of Yellowknife (Northwest Territories, Canada), measured mercury concentrations in water and in taxa from lower trophic levels of the food web, and examined trophic and biological influences on mercury con