[1] Dexter NFHTC, Mol Ecol Program, Dexter, NM 88230 USA
[2] Alaska Fisheries Sci Ctr, Seattle, WA 98115 USA
[3] Univ New Mexico, Dept Pathol, Infect Dis & Inflammat Program, Albuquerque, NM 87131 USA
[4] Dalhousie Univ, Dept Biol, Fisheries Resource Conservat Genet, Halifax, NS B3H 4J1, Canada