[1] Department of Biological Sciences, University of Windsor, Windsor, Ont. N9B 3P4, Canada
[2] Sch. Nat. Rsrc. and Environ. Mgmt., Simon Fraser University, Burnaby, BC V5A 1S6, Canada
[3] Ecotoxicology Division, Gt. Lakes Lab. Fish. Aquatic Sci., Department of Fisheries and Oceans, 867 Lakeshore Road, Burlington, Ont. L7R 4A6, Canada
[4] Ecotoxicology Division, GLLFAS, DFO, 867 Lakeshore Road, Burlington, Ont., Canada