8003

• UCREFRP Catalog Number: 8003
• Author: Haynes, C. M. and R. T. Muth.
• Title: Identification of Habitat Requirements and Limiting Factors for Colorado Squawfish and Humpback Chubs ‎(January 1, 1981 to June 30, 1982)‎.
• USFW Year: 1982.
• USFW - Doc Type: SE-3-4,
• Copyright Material: NO

Table 4. Reproductive and early life history information on selected species, Colorado and Yampa Rivers.
Species Size at Incubation Time Reported Reported References
hatching and Temperature Spawning Spawning
(mm SL/TL) Times Temperatures
Catostomus discobolus _, 10-I1/10-11 7 days -18-21°C May-.August 13-23°C est.
(cultured) Yampa River, CO Yampa River, CO
7-8 days June 15-18°C
15.5-17.8°C Yampa River, CO Yampa River, CO
Catostomus latipinnis 10-11/10-11 6-7 days
15.5-17.8°C May-July 12°C
Gila cypha 6-7/7
Gila robusta ?/7
4.8-6.7 days
19-20°C
(cultured)
4.2-6 days
21-22°C
(cultured)
June-July
Grand Canyon
Yampa River, CO
6-12°C
Yampa River, CO
13-23°C est.
Yampa River, CO
18°C
May-June 20-21°C
Green River, UT (cultured)
Carlson et al. (1979);
Holden (1973);
Snyder (1981)
Carlson et al. (1979);
Holden (1973);
McAda (1977)
Behnke and Benson
(1980); Colorado River
Fishes Recovery Team
(1979; Holden (1973);
Snyder (1981);
Suttkus and Clemmer
(1977)
rn
6-8 days June-July 18°C
Yampa River, CO Yampa River, CO Carlson et al. (1979);
Green River, UT Green River, UT Holden (1973):
May-August 15-24°C est. Vanicek and Kramer
Yampa River, CO Yampa River, CO (1969)
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