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the fish. Location (RM) along with depth, velocity and substrate data were collected on each fish at the time of contact if the fish was determined to be sta tionary . "' Other radiotelemetry activities wi th Colorado squawfish were conducted concurrent with the USFWS program but in other parts of the basin. The Utah Division of Wildlife Resources radiotelemetered seven Colorado squawfish in the White River during 1982 (Radant et ale 1983). The Colorado Division of Wildlife Resources and National Park Service conducted an intensive radiotelemetry program on Colorado squawfish in the upper Yampa River during 1982, also (Wick et ale 1982). During the past two years, 1983-84, the Colorado Division of Wildlife has radio- telemetered five or six Colorado squawfish in the upper White River. Except for the study by Wick et ale (1982), these studies utilized the same radio frequencies so that they could be detected in CRFP search efforts. Those which were encountered were included in this report but more detailed information is available in reports published by the respective agencies. YOY Colorado Squawfish Babi tat vs Discharge A section of the Green River be tween Jensen and Ouray, Utah was selected to evaluate the effects of peaking flows from Flaming Gorge Dam on survival and rearing of YOY Colorado squawfish since past investigations indicated young Colorado squawfish are common in certain habitats in this river section. Aerial photographs of this area were taken at both high and low flows in 1983 to quantify changes in Colorado squawfish nursery habi ta t wi th changes in flow . Also associa tad. wi th the flow VB habitat work was an evaluation of flow-time from Flaming Gorge Dam to the study area. Key areas at Ouray and Jensen, Utah were IIlOnitored with . staff-gauges and photos to determine the timing, duration and magnitude of flooding and dewatering of shallow habitats resulting from short term changes in discharge from Flaming Gorge Dam. 6