7407

• UCREFRP Catalog Number: 7407
• Author: McAda, C. W.
• Title: Results of the Interagency Standardized Monitoring Program, 1988.
• USFW Year: 1989.
• USFW - Doc Type: Grand Junction, Colorado.
• Copyright Material: NO

Table 9. Summary of morphometric measurements and meristic counts,
humpback chub monitoring, 1988.
Roundtail chub Humpback chub Unclassified chub
Measurement/ --------------- --------------- -----------------
Count Mean Range Mean Range Mean Range
Westwater Canyon
(N=0) (N=100) (N=0)
Nuchal _
Depression - - 4.3 1.2-10.0 - -
Number of
Dorsal Fin Rays - - 9.1 9-10 - -
Number of
Anal Fin Rays - - 9.8 9-11 - -
Length of
Dorsal Fin Base - - 33.0 22.3-45.7 - -
Length of
Anal Fin Base - - 31.9 22.0-4b.0 - - `
Black Rocks
(N=30) (N=47) (N=3)
Nuchal
Depression 1.2 0.4- 2.2 5.8 1.9- 9.9 2.5 2.4- 2.5
Number of
Dorsal Fin Rays 9.0 8- 9 9.2 8-10 9.0 9- 9
Number of
Anal Fin Rays 9.1 8-10 9.9 9-I1 9.7 9-10
Length of
Dorsal Fin Base 33.7 25.6-41.9 36.8 29.1-44.9 34.4 28.1-39.7
Length of
Anal Fin Base 30.9 25.0-38.0- 36.3 27.3-45.1 34.3 27.8-39.1
11