Abstract
Sockeye Salmon (Oncorhynchus nerka) are a keystone species in the Chilko-Chilcotin River (CCR) ecosystem. The Chilcotin River is an important tributary to the Fraser River, the largest Sockeye salmon producing river in Canada and one of the most important in North America. Salmon have spawned in the Fraser River for thousands of years, and their annual spawning run have provided abundant harvests for aboriginals and, commercial fishers (Johnsen 2001).