9435

• UCREFRP Catalog Number: 9435
• Author: Haines, B. and T. Modde.
• Title: Humpback Chub Monitoring in Yampa Canyon, 1998-2000.
• USFW Year: 2002.
• USFW - Doc Type: Project Number 22a4,
• Copyright Material: NO

0.20

~ 0.16
c:
Q)
~
0-
Q)
....
-

0.12

.~ 0.08
m
(j)
e:::

0.04 _

0.00

5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77
Ri\er km

Figure 2. Longitudinal distribution of humpback chub captured by electrofishing and angling in
the current study (1998-2000; dark bars; n=86) and in previous years (1985-1997; light bars;
n=165), Yampa River.

0.10 _
i
0.09 j
0.08 -'
>. 0.07
u
c:
Q) 0.06
~
0-
Q) 0.05 _
....
-
Q)
> 0.04 ~
~
Q) 0.03
e:::
0.02 -'
0.01 I
0.00
120 144 168 192 216

240 264 288 312 336 360 384 408
Length (mm)

Figure 3. Length-frequency of humpback chub captured by electrofishing and angling in current
study (1998-2000; n=86; dark bars) and in previous years (1985-1997; n=164; light bars),
Yampa River.

28