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Last modified
7/14/2009 5:02:31 PM
Creation date
5/20/2009 10:09:19 AM
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UCREFRP
UCREFRP Catalog Number
7834
Author
Burdick, B. D. a. R. B. B.
Title
Experimental Stocking Of Adult Razorback Sucker In The Upper Colorado And Gunnison Rivers.
USFW Year
1997.
USFW - Doc Type
\
Copyright Material
NO
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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
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