Harvest of Planted Rainbow Trout of Catchable Size from Five Reaches of Henry's Fork, Idaho

Harvest of planted rainbow trout (Salmo gairdneri) of catchable size varied greatly in the study sections of the Henry's Fork. Returns to the creel of a single strain of rainbow trout were correlated with fishing effort. For the range of returns (low to high) from the Henry's Fork, it cost from about $109 to $7 to put a kilogram of hatchery trout in the creel. To maximize efficiency of catchable-trout programs, biologists should monitor catches from all unique reaches within a contiguous river system.