9413

• UCREFRP Catalog Number: 9413
• Author: Osmundson, D. B.
• Title: Flow Regimes for Restoration and Maintenance of Sufficient Habitat to Recover Endangered Razorback Sucker and Colorado Pikeminnow in the Upper Colorado River.
• USFW Year: 2001.
• USFW - Doc Type: Grand Junction.
• Copyright Material: NO

LIST OF FIGURES
1. Map of the Colorado River from Grand Junction to Rifle, Colorado ............ 3
2. Habitat frequency of use by adult Colorado pikeminnow in the 15-mile
reach during summer and winter and habitat availability there during
summer and winter ................................................ 13
3. Seasonal partitioning of the year based on the habitat-use behavior
of Colorado pikeminnow, razorback sucker, and a combination of the two ...... 20
4. Cumulative area of eight major mesohabitat types at 12 discharge levels
in a 3.2-km long study area near Parachute, Colorado, 1983 ................. 24
5. Cumulative area of four preferred mesohabitat types at 12 discharge
levels in a 3.2-km-long study area near Parachute, Colorado, 1983 ........... 25
6. Relationship between total yield at Cameo during the April-July runoff
period and the average discharge of the peak day .......................... 32
7. Unregulated (predicted) and regulated (actual) mean monthly flows
at the USGS gauge near Cameo averaged over several years within
each of four precipitation categories during 1958-1997 ..................... 35
8. Unregulated (predicted) and regulated (actual) annual peak discharge
(mean flow of the highest day of the year) at the USGS gauge near
Cameo during, 1959-1997 ............................................36
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