7848

• UCREFRP Catalog Number: 7848
• Author: Burdick, B. D.
• Title: Minimum Flow Recommendation For Passage Of Colorado Squawfish And Razorback Sucker In The 2.3-Mile Reach Of The Lower Gunnison River
• USFW Year: 1997.
• USFW - Doc Type: Redlands Diversion Dam To The Colorado River Confluence.
• Copyright Material: NO

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U. 11

LOWER GUNNISON RIVER
2.2-Mile Reach
2.2-Mlle Reach
BLUEHEAD SUCKER
SUB-ADULTS AND ADULTS
Flow<2,000 cfe
® ® r=-0.53
n=12

&uw%
2000
V1500
w
3
a 1000
500
0
1au 195 260
Total Catch Effort (Fish/h)
2.2-Mile Reach
ROUNDTAIL CHUB
SUB-ADULTS AND ADULTS
SIP
1 ®
T
19
Flow <2,000 de
r=0.01
n=12
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2.2-Mlle Reach
FLANNELMOUTH SUCKER
SUB-ADULTS AND ADULTS
Flow<2,000 cfe
as r=-0.22
n=12
f5
N I

172
W 129
Total Catch Effort (Fish/h)
2.2-Mile Reach Flow<2,000 do
COLORADO SOUAWFISH r=0.13
SUB-ADULTS AND ADULTS n=12
01 68 0.7 1.4 2.1
Total Catch Effort (Fish/h) Total Catch Effort (Fish/h)
Figure E.3. Plot of total catch per unit effort (Fish/h) versus mean
daily discharge for sub-adult and adult bluehead sucker,
flannelmouth sucker, roundtail chub, and Colorado squawfish
collected in the 2.2-mile reach of the Lower Gunnison River,
Colorado, March 1994 to November 1995. Note: 217-2,000 cfs
was the range of flows analyzed; goodness-of-fit line fitted
by computer.

2.8
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