1. Department of Biology; University of New Brunswick; Saint John New Brunswick Canada
2. US Environmental Protection Agency; Duluth; Minnesota USA
3. Department of Physiological Sciences; University of Florida; Gainesville Florida USA
4. Department of Animal and Avian Sciences; University of Maryland; College Park Maryland USA
5. Department of Biology; University of Waterloo; Waterloo Ontario Canada
6. Department of Biology; Wilfrid Laurier University; Waterloo Ontario Canada
7. Aquatic Contaminant Research Division; National Water Research Institute, Environment Canada; Burlington Ontario Canada
8. Department of Biology; University of Prince Edward Island; Charlottetown Prince Edward Island Canada