8208

• UCREFRP Catalog Number: 8208
• Author: Osmundson, D. B., P. Nelson, K. Fenton and D. W. Ryden.
• Title: Relationships Between Flow and Rare fish Habitat in the '15-Mile Reach' of the Upper Colorado River.
• USFW Year: 1995.
• USFW - Doc Type: \
• Copyright Material: NO

500,000
M 400,000
a

Q 300,000
w
cc
J 200,000
H
0 100,000
,57 TOTAL WATER AREA
0
11200 9170 7620 5020 4426 2870 1630 1530 1240 810 557
DISCHARGE (CFS)
©RIFFLE MRAPID EDDY =FLOODED GRAVEL PIT
BACKWATER ®POOL MSLOW RUN ®FAST RUN
Figure 12. Variation in total water area and habitat composition with discharge level. Total area
(m) of each of eight habitat types in the four 15-mile reach study sites was summed.
the total water surface area. Backwaters, eddies, pools and rapids collectively comprised only 6-
14% of the total surface area. Only one gravel pit pond was present and it was flooded and
accessible only during high water.
27