1. Pacific Biological Station, Fisheries and Oceans Canada, 3190 Hammond Bay Rd., Nanaimo, BC V9T 6N7, Canada.
2. International Pacific Halibut Commission, 2320 West Commodore Way, Suite 300, Seattle, WA 98199-1287, USA.
3. School of Aquatic and Fishery Sciences, University of Washington, Box 355020, Seattle, WA 98105, USA.