7362

• UCREFRP Catalog Number: 7362
• Author: Karp, C. A. and H. M. Tyus.
• Title: Habitat Use, Spawning, and Species Associations of Humpback Chub,
• USFW Year: 1989.
• Copyright Material: NO

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Table 1. Capture dates of humpback and roundtail chubs in breeding
condition, Yampa and Green rivers, Dinosaur National Monument, 1986-1989.
Ripe males Ripe females
1986a
1987
1988
1989
Humpback chub
Jul 5 - 15
May 20 - Jun 29
Jun7-28
Jun 7
Jul 5
May 18 - Jun 16
Jun 15
Roundtail chub
1986a
1987
1988
1989
Jul 6 - 29
May 18 - Jun 20
Jun 7 - Jul 5
May 27 - Jun 7
May 17 - Jun 23
Jun 16
Jun 20
Tuberculate fishb
May 18 - Jun 22
Jun 6 - 15
May 27 - Jun 6
May 17 - Jun 29
Jun 7 - 29
May 22 - Jun 20
a There was no sampling in 1986 prior to July 5.
b Tuberculate fish were those that exhibited secondary sex characters
(e.g., tubercles) but were not ripe.
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