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Last modified
7/14/2009 5:02:28 PM
Creation date
5/22/2009 5:25:30 PM
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UCREFRP
UCREFRP Catalog Number
6008
Author
Archer, D. L., H. M. Tyus, L. R. Kaeding, C. W. McAda and B. D. Burdick.
Title
Colorado River Fishes Monitoring Project
USFW Year
1984.
USFW - Doc Type
Second Annual Project.
Copyright Material
NO
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each backwater was recorded and a similar haul made along the adjacent <br />river shoreline. The relative abundance of each species within samples <br />was calculated as the number of fish perm sampled by seines. Relative <br />abundance data for each species were averaged within 10-mile river <br />reaches. Data from seining in backwaters and along adjacent shoreline <br />areas were treated separately. <br />Habitat vs Discharge Study <br />The Green River section between Jensen and Ouray, Utah was selected to <br />evaluate effects of altered flows from Flaming Gorge Dam on survival and <br />rearing of YOY Colorado squawfish. Past investigations have shown young <br />Colorado squawfish are common in certain habitats in this river section. <br />Also associated with the flow vs habitat work was an evaluation of flow- <br />time from Flaming Gorge Dam. Key areas at Ouray and Jensen were monitored <br />with staff-gages and photos to determine the timing, duration and magnitude <br />of flooding and dewatering of backwater habitats resulting from daily <br />changes in flow at Flaming Gorge Dam. <br />Using controlled releases of high and low flow from Flaming Gorge, YOY <br />Colorado squawfish were to be monitored to evaluate fish behavior and <br />interactions with other fish species. Young Colorado squawfish were to <br />be marked and followed over the period of study by seining. The response <br />of fishes to temperature and flow changes were studied. Water temperatures <br />and flows were monitored in key habitats at three sites during these <br />investigations. <br /> <br />5 <br />
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