9350

• UCREFRP Catalog Number: 9350
• Author: Hawkins, J., T. Modde and J. Bundy.
• Title: Ichthyogauna of the Little Snake River, Colorado, 1995 with Notes on Movements of Humpback Chub.
• USFW Year: 2001.
• USFW - Doc Type: Denver.
• Copyright Material: NO

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Telemetered humpback chub occupied the Little Snake River from mid-June
until either early or late-July when flows ranged from 19 to 93 m3 Is and were
generally declining from the peak of 165 m3/s (Figure 2). During occupation by
humpback chub, daily temperatures in the Little Snake River ranged 14.4 to
21.20 C, averaged 180 C (s = 2.0904), and on a daily basis were warmer than in the
Yampa River (Figures 3 and 4). Mean daily temperatures in the Little Snake River in
July were 19 Oc (s = 1 .8141) and 2 0 warmer than daily temperatures in the Yampa
River. Both humpback chub and the roundtail chub apparently left the Little Snake
River just prior to baseflow as daily temperatures in the Little Snake River cooled to
levels lower than those in the Yampa River (Figures 3 and 5). In August, mean
daily temperature in the Little Snake River, while still warm (x = 19.80 C,
s =0.7176) was two degrees cooler than the Yampa River Ix = 21.40 C,
s = 1 .0928).

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