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In 1987, four squawfish from the 15-mile reach were equipped with radio <br />transmitters. One of these (B) has remained in the reach, within 2.6 miles <br />of its capture site. Another (G) stayed in the reach during June and most <br />of July, then moved seven miles downstream. It has remained in a deep pool <br />2.5 miles below the reach since September. Another tagged fish (H) remained <br />in the reach until late July, then moved to the Redlands Diversion plunge <br />pool in the Gunnison River, but returned to the 15-mile reach in November. <br />Another (I) disappeared from the Grand Valley study area after release in <br />mid June and reappeared in the 15-Mile Reach two weeks later on 8 July; it <br />moved to the base of the Redlands Diversion in late July and remained there <br />until late September when it returned to within one mile of its release site <br />in the 15-mile reach. Three squawfish were captured from the Gunnison River <br />and radio-tagged in mid August; one of these moved 14 and another 36 miles <br />downstream within two weeks after release, whereas contact was lost with the <br />third fish. <br />Razorback sucker <br />In 1986, the single razorback sucker that was tracked left the 15-mile reach <br />within one week after release and spent the remainder of the year in a side <br />channel near WWA (Fig. 2). Contact with this razorback was lost during May <br />and June, 1987, when the fish may have moved to a spawning site. It was <br />later located downstream (RM 158.8), but then moved up to a deep pool at RM <br />168.5 where it has remained since August. Another razorback, captured from <br />the 15-mile reach (RM 178.3) and tagged in early June, 1987, was located in <br />early July downstream at RM 166.6, where it has remained. A third <br />razorback, tagged 2.8 miles downstream from the the 15-mile reach on May 19, <br />was located in the 15-mile reach (RM 175.1) on June 8. This fish was later <br />9