[1] Carleton Univ, Dept Biol, 1125 Colonel By Dr, Ottawa, ON K1S 5B6, Canada
[2] Carleton Univ, Inst Environm & Interdisciplinary Sci, 1125 Colonel By Dr, Ottawa, ON K1S 5B6, Canada
[3] Univ Massachusetts, Dept Environm Conservat, Amherst, MA 01003 USA
[4] Ontario Minist Nat Resources, Ctr Northern Forest Ecosyst Res, Thunder Bay, ON P7B 5E1, Canada
[5] Humboldt Univ, Albrecht Daniel Thaer Inst, Fac Life Sci, Div Integrat Fisheries Management, Berlin, Germany
[6] Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Fish Biol Fisheries & Aquaculture, Muggelseedamm 310, D-12587 Berlin, Germany
[7] Cornell Univ, Publ & Ecosyst Hlth Dept, Ithaca, NY 14853 USA
[8] Univ Ottawa, Dept Biol, Chem & Environm Toxicol Program, Ottawa, ON K1N 6N5, Canada
[9] Univ Wisconsin, Sch Vet Med, Dept Pathobiol Sci, Madison, WI 53706 USA