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• UCREFRP Catalog Number: 9300
• Author: Osmundson, D. B.
• Title: Importance of the 15-Mile Reach to Colorado River Populations of Endangered Fish.
• USFW Year: 1996.
• USFW - Doc Type: Grand Junction, CO.
• Copyright Material: NO

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SPAWNING
GROWTH
1994
CO-UT STATE LINE
RULISON
DEVELOPMENTAL DEGREE DAYS
----------- -------------------------------------------------------------------------------------
STATE LINE: 1,074
RULISON : 532 (49%)
1995
SPAWNING
'VV GROWTH
DEVELOPMENTAL DEGREE DAYS
------------------------------------------------------ ----------------------------- -............................ _...................................................................................
...
STATELINE: 485
18-MILE REACH : 388 (80%)
CAMEO: 306 (63%)
RULISON : 202 52%
MAY JUN JUL AUG SEP OCT
Figure 6. Daily average main channel temperatures from May through October at two sites in the
Colorado River during 1994 and at four sites during 1995. Temperatures at Cameo during 1994
are not shown due to a month-long period of missing records. Rulison and lower Grand Valley
(18-mile reach) data are averages of 12 daily readings from FWS thermographs.
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