8233

• UCREFRP Catalog Number: 8233
• Author: Chart, T. E., D. P. Svendson and L. Lentsch.
• Title: Investigation of Potential Razorback Sucker ‎(Xyrauchen texanus)‎ and Colorado Pikeminnow ‎(Ptychocheilus lucius
• USFW Year: 1999.
• USFW - Doc Type: Spawning in the Lower Green River, 1994 and 1995.
• Copyright Material: NO

LIST OF FIGURES
Figure 1. Map of the lower Green River. River kilometers/miles indicate distance from
the confluence with the Colorado River ............................... 18
Figure 2. Lower Green River hydrograph and thermograph as recorded at USGS gage
#09315000, Near Green River, Utah, 1994 and 1995 ..................... 19
Figure 3. Electrofishing catch rates for species collected from the lower Green River RK
193.1-153.0 (RM 120.0-95.0), 1994 .................................. 20
Figure 4. Electrofishing catch rates for species collected from the Green River, Utah,
1995. Above the town of Green River, Utah - RK 212.5 - 193.2 (RM 132.0-
120.0); Below the town of Green River, Utah - RK 193.1-153.0
(RM 120.0-95.0) .................................................21
Figure 5. Trammel net catch (fish per hour) on the lower Green River near Millard
Canyon (RM 33.5); 1994-1995 ...................................... 22
Figure 6. Length frequency analysis of larval razorback suckers by capture date in the
lower Green River, Utah, 1994 and 1995 .............................. 23
Figure 7. Comparison of mean (+/- 1 SD) YOY pikeminnow collected above (A) and
below (B) Millard Canyon (RK 53.9; RM 33.5). Data presentation is the same
for all years: 1986-1996. Represents data collected in ISMP Reach 3
(RK 192.0 (RM 120) - 0.0) ......................................... 24
iv