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~' <br />327-335 <br />Vernal * 4 5 <br />300-3i 9 <br />245-260 ;~ 1 <br />Yampa River <br />49-54 10 <br />11 <br />g 70-80 <br />95-105 <br />95-104 <br />12 <br />,~i 0-21 White River ~ ~~ <br />~~ <br />i~' <br />Grand Junction <br />Green 8 <br />River * .,et 132-54 <br />~~ <br />96-115 2 aa° 7 86.99 <br />~0~ <br />G° 6 Gunnison River <br />* Moab <br />40-56 1 49-68 <br />Figure 1.--River reaches sampled in the late-juvenile/adult Colorado squawfish <br />monitoring program. <br />Results <br />A total of 49 juvenile or adult Colorado squawfish was collected during the 1988 <br />monitoring program (Table 2)--an additional 18 individuals were observed but <br />could not be captured (Table 3). Catch rates (number of Colorado squawfish <br />collected per hour of electrofishing time) were highest in parts of the Green and <br />Yampa rivers, and lowest in the Colorado River (Table 2). Twelve razorback <br />suckers were captured in the upper Green River and one razorback was collected <br />from the Colorado River. Six humpback chub were collected from the Colorado <br />River. Northern pike were common in the upper Green River, but were not <br />collected elsewhere (Table 4). Walleye were observed in the Green River; <br />smallmouth bass, largemouth bass and green sunfish were not observed. <br />3 <br />