Jason Leach, Trent University, Peterborough, ON, Canada; Canadian Forest Service, Sault Ste Marie, ON, Canada, Kara L Webster, Canadian Forest Service, Ottawa, ON, Canada, Paul W Hazlett, Canadian Forest Service, Sault Ste. Marie, ON, Canada, Dean Jeffries, Environment and Climate Change Canada, Burlington, Canada and Daniel Houle, Environnement and Climate Change Canada, Aquatic Contaminants Research Division, Montreal, QC, Canada