1. Aquatic Contaminant Research Division, Environment and Climate Change Canada, Burlington, ON L7S 1A1, Canada
2. Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
3. Standards Development Branch, Ontario Ministry of the Environment, Toronto, ON M4V 1L5, Canada
4. Department of Biology, University of Calgary, Calgary, AB T2N 1N4, Canada
5. Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
6. Department of Biology, McMaster University, Hamilton, ON L8S 4L8, Canada
7. Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada
8. Cardno ChemRisk, Aliso Viejo, CA 92656, USA
9. Environmental and Resource Studies, Trent University, Peterborough, ON K9 J 7B8, Canada
10. Department of Biology, Cape Breton University, Sydney, NS B1P 6L2, Canada