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<br />in 1996. None of these fish were radiotagged. In 1997. four squawfish <br />used the fish passageway in July and 14 in August. Three of these fish <br />had been captured previously from the Colorado River downstream of <br />Moab. Utah. In 1996. the one adult squawfish that used the fish <br />passageway also ascended the ladder during August. All squawfish were <br />released upstream of the dam. Following release. it is unknown whether <br />the fish continued upstream or 'fell back over the Redlands Diversion <br />Dam (RM 3). <br /> <br />In 1997. a total of 12.235 fish comprising six native and eight <br />nonnative species plus three hybrid sucker fishes were collected in the <br />fish trap. Ninety.four percent of the fish collected were natives. <br />Flannelmouth sucker comprised 43% of the catch. bluehead sucker. 41%. <br />White sucker comprised the largest number of nonnative fish (2%). <br /> <br />Of the 12 adult Colorado squawfish that were implanted with 36D-day <br />LOTEK@ radiotags during April. May, and June 1997. none used the fish <br />passageway. None of the squawfish implanted with radiotags in 1996 <br />used the passageway in 1996 or 1997. One land-based tracking station <br />located at the dam and two located downstream in the 2.3-mile reach of <br />the Lower Gunnison River constantly monitored and logged any movement <br />of radiotagged fish in the vicinity. Following radiotag implantation <br />in 1997. only two radiotagged fish were detected about D.1-mile <br />downstream of the Redlands Diversion Dam plunge pool intermittently <br />during mid-July and mid-September. Two other radiotagged fish were <br />detected occupying a lower section of the 2.3-mile reach of the Lower <br />Gunnison River intermittently during mid-July and mid-September. <br />Unfortunately, the radiotag and carcass of one Colorado squawfish <br />implanted in June 1997 was found in Walter Walker State Wildlife Area <br />in August. <br /> <br />IV. Study Goals. Objectives. End Product: <br /> <br />Studv Goals <br /> <br />Evaluate whether juvenile and adult Colorado squawfish will use a <br />passageway. <br /> <br />Obiectives <br /> <br />1. Determine the use of the fish passageway by juvenile and adult <br />native and nonnative fishes, with particular emphasis on Colorado <br />squawfish. <br /> <br />Redlands 6 <br />