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other species, so intensive sampling with these gear types could also produce larval Colorado pikeminnow, if they inhabit this river. Electrofishing samples and radio telemetry data should be collected during the winter in an attempt to determine whether any Colorado pikeminnow inhabit the Price River throughout the year or return to the Price River on an annual basis. Radio contact from one Colorado pikeminnow in the fall of 1996 and the spring of 1997 suggests that this fish spent the entire year in the Price River; another possibility is that this fish returned to the Price River after spending the winter in the Green River. Documentation of the period and frequency of use of the Price River is necessary in order to more fully understand the importance of the Price River to the Green River Colorado pikeminnow metapopulation. The section of river between Grassy Trail Creek and the Mounds Bridge (river mile 78.5) should be sampled with electrofishing gear to determine the extent to which it is used by Colorado pikeminnow and other native species. Several Colorado pikeminnow were found in the Price River near the confluence with Grassy Trail Creek, and two Colorado pikeminnow were captured above this area. However, no samples were collected between these two points. Habitat in this section of river appears to be similar to that found below Grassy Trail Creek, with one exception: there seems to be a greater abundance of pool habitat above Grassy Trail Creek than in the area below it. This pool habitat is probably important to native fishes during low- flow periods, but documentation of use by native species is still needed. The habitat above Farnham Diversion and its associated fish community should be evaluated in order to determine whether or not a fish ladder should be installed at this location. Several miles of habitat that maybe suitable for Colorado pikeminnow and other native fishes exists above this diversion dam. Farnham Diversion, located at river mile 88.5, is a barrier to upstream movement for all fish, so it is unlikely that Colorado pikeminnow exist above this point. This diversion is quite high, and water spilling over it splashes onto a concrete pad, so fish moving downstream could potentially be killed if they move over the barrier. Another irrigation diversion, located at river mile 42, should be monitored annually. This diversion, in its current configuration, seems to allow fish passage. However, the owner of this diversion made improvements to it in 1996 and 1997. Further enhancement of this diversion could cause it to become an obstruction to fish passage. Mitigation measures are needed for current and proposed projects that may reduce the discharge of the Price River. Habitat for all fish species could be lost if flows are reduced, and non-native species may benefit if spring peak flows are reduced. In consideration of these potential losses of water, acquisition of water for an instream flow will probably be necessary in order to protect native-fish habitat that currently exists in the lower Price River. Finally, a reintroduction program for roundtail chub should be developed and implemented in the Price River. This species was abundant in the Price River, but it has been eliminated during the past century. The cause of their elimination from this river is unknown, but current habitat conditions seem to be adequate to support them. Stocking of adult fish equipped with radio transmitters would allow researchers to determine short term success of stocking efforts, but monitoring in following years would be required in order to determine if successful reproduction and recruitment of this species is occurring. Monitoring efforts should be conducted in conjunction with monitoring of Colorado pikeminnow, flannelmouth sucker, bluehead sucker, and speckled dace populations. In this manner, the effects of future habitat 17