1. Canadian Rivers Institute and Biology DepartmentUniversity of New Brunswick Saint John New Brunswick Canada
2. Department of Biology and School of Earth, Environment and SocietyMcMaster University Hamilton Ontario Canada
3. Toxicology CentreUniversity of Saskatchewan Saskatoon Saskatchewan Canada
4. North/South Consultants Winnipeg Manitoba Canada
5. Freshwater InstituteFisheries and Oceans Canada Winnipeg Manitoba Canada