Siilvik, the Iñupiaq name for Selawik, means "place of sheefish." Learn more about this amazing place and Alaska's largest whitefish. Katrina and Guy are joined by U.S. Fish and Wildlife Service fish biologists Ray Hander and Bill Carter to talk about the fall spawning migration, collaborative fish science and permafrost thaw slumps. (episode 6 featuring Siikauraq Martha Whiting focuses on the winter sheefish fishery in Kotzebue, AK).