1. Environmental and Life Sciences Graduate Programme; Trent University; 1600 West Bank Drive Peterborough ON K9J 7B8 Canada
2. Department of Aquatic Sciences and Assessment; Swedish University of Agricultural Sciences; Uppsala Sweden
3. Faculty of Environmental Studies; York University; 4700 Keele Street Toronto ON M3J 1P3 Canada
4. Environmental and Resource Studies; Trent University; 1600 West Bank Drive Peterborough ON K9J 7B8 Canada