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Valdez et al. between the Price-Stub Dam and the Government Highline Dam (Table 2). Valdez (1984) sampled the fishes between the Grand Valley Diversion Dam and the Price-Stub Dam with electrofishing, seines, dip nets, and drift nets between April and September, 1984. A summary of the fish community in 1984 is summarized in Table 3. This was the first documented occurrence of the red shiner above the Price-Stub Diversion Dam. The fish species collected in a study of Plateau Creek between April and October, 1984 (Carlson and Platania 1985) is summarized in Table 4. This survey of Plateau Creek revealed numerous native roundtail chubs, bluehead suckers, and flannelmouth suckers. The native speckled dace was also found in Plateau Creek. Carlson and Platania reported that fathead minnows were common in areas of Plateau Creek and that other nonnative fishes included green sunfish, brassy minnows, white suckers, 1 carp, 1 adult black bullhead, and a school of juvenile black bullheads. Colorado River Fishery Project personnel in Grand Junction sampled the Colorado River reach between the Government-Highline Diversion (RM 193.7) and the Cameo Bridge (RM 189.8) on August 24-25, 1994, to determine the species composition of the fish community. All seine samples were taken with a 1/4- inch-mesh seine. Electrofishing samples were taken from an electrofishing raft using a single anode and a single cathode. The electrofishing raft was powered by a 5 kw generator; power was adjusted using a VVP-15. Because of very steep banks and poor access, it was impossible to get a boat out of the river in the 1.5-mi reach between the Cameo Bridge and the Price Stubb Diversion (RM 188.3). However, the habitat in the unsampled reach was very similar to the river reach that was sampled and fish composition is assumed to be the same in that short reach. The fish species collected with electrofishing gear are summarized in Table 5 and the.fish species collected with 1/4-inch seine are summarized in Table 6. The length frequency of bluehead suckers, flannelmouth suckers, and roundtail chubs collected by electrofishing is summarized in Figure 1.' Three of four off-channel (gravel pit) ponds in this reach (Island Acres) are presently stocked with catchable rainbow trout but these ponds may be converted to warmwater fisheries by the Colorado Division bf Wildlife (B. Emblad, 1994, Personal Communication). The fourth (and older) pond reconnected with the river during the high flows of 1993 through a stuck flapper valve in a culvert. This pond presently contains nonnative black bullheads, green sunfish, carp, and white suckers (B. Emblad, 1994, Personal Communication). Bob Norman had several questions that he wanted the Biology Committee to consider. The first question is "Should selective fish passage capabilities (i.e., fish trap) should be designed into the fishway to be constructed at the Price-Stub Diversion Dam?" An element of the present RIP-RAP identifies the construction of a fish passage structure at this site. If the prevention of nonnative fish entry into the reach of the Colorado River upstream from the diversion dam barriers is important to recovery of the endangered fish, "Does it matter where selective passage capabilities are constructed?" Available space for construction of such facilities and access for operation and maintenance of the structure pose problems at the Government Highline