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such as Cleopatra's Couch on the Yampa River, have cobble bars that are exposed during low water periods, and are in close proximity to resting and staging areas (Harvey et al. 1993). These types of habitat are not common in the Frice River, but a ripe male Colorado pikeminnow was captured at river mile 10.5 in 1996, which suggests that some suitable spawning habitat maybe available in the Price River. However, male Colorado pikeminnow can express milt for at least two months (McAda and Kaeding 1991) so the presence of this ripe fish is not proof of suitable spawning habitat. Even if Colorado pikeminnow are successfully spawning in the Price River, it is not likely that the larvae are able to remain in the river. The only nursery habitats that existed during high water were in the mouths of flooded washes. These areas were dry during low water, and few backwaters developed in other areas. Lack of backwater habitat reduced the efficiency of light traps and seines, and drift nets were also ineffective since they filled with debris in a short period of time. These factors made sampling small fish nearly impossible, but high water velocities probably wash most larval fish down to the Green River, since nursery habitat is so rare in the Price River. The Price River seems to be at least as important to native species as other similarly-sized tributaries in the upper Colorado River basin. Electrofishing in the Price River showed that native species made up 71.7% of the total catch, while native species composed 62.0% of the electrofishing catch in the San Juan River in 1987 (Meyer and Moretti 1988), 68.6% of the catch in the upper Dolores and 45.0% of the catch in the lower Dolores River in 1990 (Valdez et al. 1991), 17.8% to 97.5% of the catch in the White River (Lentsch et al. 1998), and 19.8% of the catch in the Duchesne River in 1993 (Cranney 1994). Flannelmouth suckers are the most common native species in all of these systems, and the catch rate of this species in the Price River was similar to the other tributaries. Canoe electrofishing catch rates ranged from 24.3 to 35.4 flannelmouth suckers per hour in the Price River in 1996 and 1997 when the data was stratified by area. Valdez et al. (1991) also used canoe electrofishing in the upper Dolores River and their catch rate of flannelmouth suckers was 12.1 per hour. Electrofishing from other types of boats produced 2.18 to 21.87 flannelmouth suckers per hour in the Duchesne River (Cranney 1994), 50.16 per hour in the lower Dolores River (Valdez et al. 1991), approximately 38 to 68 per hour in the White River (Lentsch et al. 1998) and 0 to 152.6 per hour in the San Juan River (Meyer and Moretti 1988). Colorado pikeminnow catch rates in the Price River ranged from 0.44 to 1.08 fish per hour of electrofishing. This rate is similar to those recorded during the 1986 through 1992 Interagency Standardized Monitoring Program (McAda et al. 1994) in the Yampa River (0.23 to 1.06 per hour), the White River (0.19 to 1.01 per hour) and the Colorado River (0.17 to 1.08 per hour). Boat electrofishing in the Green River near the confluence with the Price River produced 1.53 Colorado pikeminnow per hour in 1998 (Utah Division of Wildlife Resources, unpublished data). The proportion of native species is much higher in the Price River than in the Green River, and the number ofnon-native predators and competitors, such as channel catfish and green sunfish, in the Price River is relatively low. The only place large concentrations of these species were found was near the confluence with the Green River. These species are far more abundant than native species in samples collected in the middle and lower sections of the Green River (Keith Day, Utah Division of Wildlife Resources, personal communication; Tom Chart, Utah Division of Wildlife Resources, personal communication). This difference in the fish community between these rivers suggests that native species are better adapted than non-native 14