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<br />Jensen Reach (n=15), but at least one was encountered in each <br />of the remaining three reaches. Smallmouth bass (n=ll) were <br />encountered in the Ouray Reach (n=5) , Island Park Reach (n=5) <br />and Jensen Reach (n=l). One green sunfish each was observed <br />in the Ouray Reach and the Island Park Reach. A single <br />walleye was encountered in the Jensen Reach. Rainbow trout <br />were captured in the Jensen (n=3) , Island Park (n=3) and <br />White River (n=l) reaches. One brown trout was caught in <br />Jensen Reach and another was caught in the Island Park Reach. <br />Channel catfish (n=35) were encountered in all reaches but <br />the Ouray Reach. <br /> <br />Table 4. Numbers of endangered fishes captured, observed and <br />rate of capture for ISMP post-juvenile/adult monitoring, <br />Northeastern Utah 1997. <br /> <br /> CS RZ <br />Reach RM Dates #C #0 #/hr #C #0 #/hr <br />1 334.0-326.7 4/29&5/0214 6 1.4 0 0 0.0 <br />2 316.0-298.0 5/06&5/08 18 11 1.5 4 0 0.3 <br />3 262.0-245.0 5/13 6 4 1.2 0 0 0.0 <br />13 21.3-0.0 5/20-5/29 20 12 1.8 0 0 0.0 <br />TOTALS 58 33 1.5 4 0 0.1 <br />SUMMARY OF YOY SAMPLING - 1997 MIDDLE GREEN RIVER <br /> <br />Annual ISMP fall sampling for YOY Colorado squawfish on the <br />middle Green River was conducted 6 October to 8 October. <br />Green River flows were considerably higher than usual (4000 <br />- 5000 cfs) this year due to rain events and increased <br />releases (2900 cfs) from Flaming Gorge Dam. Because of <br />this, only 39 of a possible 42 backwaters were sampled. No <br />backwaters were located between RM 235 and RM 230. <br /> <br />Twenty-three Colorado squawfish were captured in 6 <br />different backwaters. All squawfish were captured between <br />RM 294.6 (Spring Hollow) and RM 248.9 (Ouray). These fish <br />ranged from 28 mm - 49 mm total length with mean of 35.5 <br />mm. This is the second lowest catch of YOY squawfish since <br />1986. <br /> <br />Chubs were the most numerous native species encountered. A <br />total 138 chubs was caught in 11 different backwaters. All <br />chubs were caught between RM 318.9 (Split Mountain) and RM <br />279.3 (Horseshoe Bend). These fish ranged in length from <br />25 mm to 104 mm. Mean total length for chubs was 40.9 mm. <br />All chubs on which counts were made had dorsal/anal ray <br />ratio of 9/9, indicating they were roundtail chubs. Chubs <br />were 10 times as numerous this year as in 1996. <br /> <br />A total 118 suckers was captured during sampling: 94 <br /> <br />6 <br />