1. Dept of Fisheries, Wildlife, and Conservation Biology; Univ. of Minnesota; 135 Skok Hall 2003 upper Buford Circle, St. Paul MN 55108 USA
2. Dept of Computer Science and Engineering; Univ. of Minnesota; 200 Union Street Minneapolis MN 55455 USA
3. Minnesota Dept of Natural Resources; Fisheries Research; 20596 Hwy 7 Hutchinson MN 55350 USA