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squawfish was assigned a species priority of 4 so that action for propagation of this species is lower than for the three other endangered Colorado River fishes. Although the Colorado squawfish is considered stable in the Upper Colorado River Basin and was assigned the lowest priority among the endangered fish that are valuable to the Program as broodstocks, The ' Colorado Division of Wildlife identified a need for captive-reared fish from this stock for restoration stocking in the reach of the Colorado River between Palisades CO and Rifle CO and augmentation stocking in the Gunnison River upstream from the Redlands Irrigation Diversion Dam near Grand Junction CO. These needs will be further discussed in Section VI.3., "Long-Term Endangered Fish Needs". B. Short-Term Endangered Fish Needs. Short-term endangered fish needs involve the use of captive-reared fish to conduct research studies and for use in information and education programs. 1. Information and Education. Although actual needs for endangered Colorado River fishes for public relations programs have not been identified, fish needs for this important outreach program can be furnished from existing and future propagation facilities. Generally, fish that are produced in excess of Program requirements will be used for information and education programs. Excess fish are produced during propagation to-compensate for unknown mortality so that sufficient numbers of fish survive to be used as broodstocks. 2. Field and Laboratory Studies. The need for captive-reared endangered fish have been identified for the following experimental field studies: (A) Imprinting or Homing (Chemo-Reception) Studies in Razorback Suckers Study (A) - 1,523 razorback suckers are being reared that will i weigh 4,351 pounds after the 5th growing season and will require ¦ nearly 3.0 acres of pond space. An additional 919 fish were imprinted in 1992 that will weigh 2,625 pounds after the .5th growing season and require nearly 2.0 acres of pond space. (B) Imprinting or Homing (Chemo-Reception) Studies in Colorado squawfish Study (B) - 446 Colorado squawfish are being reared that will weigh 369 pounds after the 5th growing season and require about 0.33 acre of pond space. (C) Ecological Requirements and Movements of Adult Razorback Suckers Study (C) - Up to 60 razorback suckers will be reared to maturity, radio-tagged, and released in the upper Colorado River. These fish will weigh 171 pounds after the 5th growing season and require 0.11 acres of pond space. 40