Lake Levels and Water Quality in Comparison to Fish Mercury Body Burdens, Voyageurs National Park, Minnesota, 2013–15 Image Date Issued 2017 Author Christansen, Victoria G. Larson, James H. Maki, Ryan P. Sandheinrich, Mark B. Brigham, Mark E. Kissane, Claire LeDuc, Jaime F. Main Topic Water Quality & Pollutants Water Biology & Aquatic Habitat Surface Water