Department of Fisheries Resources Management
Johnson Creek Artificial Propagation Enhancement

Johnson Creek Artificial Propagation Enhancement (JCAPE) began as a supplementation effort to prevent loss of the Johnson Creek stock listed by NOAA Fisheries. It is the only spring\summer chinook supplementation program in Idaho's Salmon River Subbasin where 84% of the ESA listed spring\summer chinook are found.

Staff at the McCall, Idaho Field Office operate adult weirs and broodstock facility for Johnson Creek, a tributary of the South Fork Salmon River. Smolts are produced at the McCall Hatchery, a Lower Snake River Compensation Plan (LSRCP) facility managed by the Idaho Fish and Game (IDFG). A large research component is studying this supplementation effort to determine its effectiveness.

105,230 summer chinook salmon smolts (105% of goal) were released into Johnson Creek March 14-16, 2005. This was the 7th release year. Just over 40 adults were collected at the weir last August for broodstock. Eggs will be incubated and reared at McCall Hatchery. Presently 89,101 juveniles (89% of goal) are being reared for release in 2007.