The ultimate goal of the Idaho Department of Fish and Game (IDFG) Captive Rearing Program of Salmon River Spring Chinook Salmon is to maintain a minimum number of adults spawning in specific target streams annually.  To achieve this goal, the program is testing the efficacy of the captive rearing conservation approach.  Project activities are divided into two parts:  1) hatchery propagation and 2) spawning performance monitoring and evaluation.  The success of the project depends on developing culture techniques to produce fish with proper behavioral, morphological, physiological characteristics to successfully interact with and breed with wild individuals.  Field monitoring is used to document behavioral interactions, spawn timing, success of redds spawned by captive-reared individuals, and to determine if changes in culture technique result in desired changes in reproductive behavior or performance.  In addition, an important component of this program is to document successful production (juveniles and adults) from captive adult spawning events.