8027

• UCREFRP Catalog Number: 8027
• Author: U.S. Fish and Wildlife Service.
• Title: A comparison of captures of Colorado squawfish and razorback suckers from adjacent Colorado River reaches upstream and downstream from the confluence with the Gunnison River - Draft.
• USFW Year: 1985.
• USFW - Doc Type: Grand Junction, CO.
• Copyright Material: NO

' *****DRAFT*****
Table 2. Catch per unit of sampling effort (CPUE) for post-larval age-0
Colorado squawfish (CS; TL>25mm) captured from the 10-mile
Colorado River reaches immediately upstream an d downstream
from the confluence with the Gunnison River, 1 982-1%84. CPUE
is expres sed as the number of CS captured per 10 m2 swept by
6-mm-mesh seine (1982 data) and 3-mm-mesh sein e (1983 and 1984).
Upstream Reach (RM(a) 180-170) Downstream Reach (RM 169.9-160)
Total effort No. of seine Total effort No. of seine
CPUE (m2) hauls (% w/CS) CPUE (m2} hauls (~ w/CS)
SEPTEMBER 1982
O 328 4(0) 0 208 2(0)
SEPTEMBER 1983
0 364 7(0) 0.09 564 ~ 5(20)
OCTOBER 1983
0 205 5(O) 0.41 381 8(38}
AUGUST 1984
O 187 4(0) 0 564 4(O)
SEPTEMBER 1984
0 195 4(0) 0.06 168 4(25)
OCTOBER 1984
0 - 201 4(0) 0.84 368 4(75)
Total 1480 2253
(a) RM = river mile, the location on the river measured as the distance
from the conflu ence of the Colorado and Green rivers (RM 0).
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