1. Virginia Department of Wildlife Resources 3801 John Tyler Memorial Highway Charles City Virginia 23030 USA
2. Oregon Department of Fish and Wildlife Corvallis Research Laboratory 28655 Highway 34 Corvallis Oregon 97333 USA
3. School of Aquatic and Fishery Sciences University of Washington 1122 Northeast Boat Street Seattle Washington 98105 USA
4. National Oceanic and Atmospheric Administration National Marine Fisheries Service Northwest Fisheries Science Center, Environmental and Fisheries Sciences Division 2715 Montlake Boulevard East Seattle Washington 98112 USA
5. Department of Fisheries and Wildlife Oregon Hatchery Research Center Oregon State University 104 Nash Hall Corvallis Oregon 97331 USA