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dam sometime between 7 April and 17 May 1994. It was last contacted in the <br />Redlands Diversion Dam plunge pool 31 May 1994. Fish .480 Mhz passed over the <br />dam sometime between 10 May and 9 August 1994. The radio signal of fish .480 Mhz <br />was contacted on 9 August and 30 August 1994 at RM 163.2 in the Colorado River. <br />It was last contacted 14 July 1995 at RM 162.4 in the Colorado River. The <br />predominant downstream movement of these two fish leaves uncertainty how long <br />they were alive following release, if they were alive when passing over the dam, <br />or if only the radiotag passed over the dam. Because the disposition of these <br />two fish during the last radio contact was uncertain and no upstream movement was <br />observed, they are presumed dead. <br />Gunnison River <br />1995 Razorback Sucker Radiotelemetry <br />SEP <br />Z <br />p '95 <br />2 <br />OCT <br />NOV <br />Release Point <br /> <br /> 2 Razorback Sucker M <br /> M <br />• <br />v <br />c <br />• <br />0 <br />0 <br />? 0l <br />DI <br />I <br /> of I <br />o <br />e el <br />?I I <br />I <br />0 OI I <br />V <br /> <br />O •I <br />v <br />O I I <br /> <br />I q <br />C ¢° I I <br />C7 I <br />I I <br />I > <br /> I I ? <br /> I I ; <br /> I I C <br /> I 1= <br /> I <br />I A I <br />A I <br /> <br />O 20 40 60 <br />RIVER MILE <br />Figure 5. Movement of two radiotagged razorback sucker in the Gunnison <br />River, September-November 1995. Fish were released at a <br />backwater, river mile 53.6, immediately upstream of Escalante <br />State Wildlife Area, 13 September 1995. Note: A=fish alive, <br />D=dead, M=missing. <br />13