1. Department of Laboratory Medicine
and Pathology, University of Alberta, Edmonton,
Alberta T6G 2G3 Canada
2. Aquatic Contaminants Research
Division, Environment Canada, Burlington,
Ontario L7R 4A6, Canada
3. Department
of Water and Environmental
Studies, Linköping University, SE-581
83 Linköping, Sweden
4. Department of Environmental
Biology, University of Guelph, Guelph,
Ontario N1G 2W1, Canada
5. Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island
02882-1197, United States
6. Arctic Aquatic Research Division, Department of Fisheries and Oceans Canada, Winnipeg,
Manitoba R3T 2N6, Canada
7. National Institute of Advanced Industrial Science and Technology, Tsukuba,
Ibaraki 305-8569, Japan