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late May and early June as flows peak and begin to drop (David <br />Irving, USFWS, pers. comet; Radant 1983). Similar movements could <br />have occurred in the Duchesne River which would have markedly <br />decreased numbers of squawfish in that sy$tem during mid-June <br />sampling. <br />Two of the four Colorado squawfish captured in stratum B were <br />recaptures. A squawfish (555 mm, 1400 g) captured at RM 13.7 on <br />05/26/93 was originally captured on 05/10/91 (537 mm, 1400 g) at RM <br />247.8 (Duchesne River confluence) on the Green River. A second <br />squawfish (458 mm, 750 g) captured on 06/01/93 was originally <br />captured on 07/08/92 (421 mm, 430 g) at RM 184.8 in the Green River <br />at Cedar Ridge Rapid in Desolation Canyon (ISMP database). <br />Two razorback suckers were positively identified by netters but not <br />captured, one at RM 5.0 on 06/01/93 and a second on the same date <br />at RM 11.4. These sightings extend the known range of razorback <br />suckers in the Duchesne River. <br />Total numbers and catch-per-unit-effort for other species is given <br />in Table 5. Carp were clearly the most abundant fish in all strata <br />with smallmouth bass and flannelmouth suckers alternating between <br />2nd and 3rd in catch per hour. Northern pike were observed only in <br />stratum A but were the 4th most abundant fish in that stratum. <br />24 <br />