7171

• UCREFRP Catalog Number: 7171
• Author: Meyer, C. W. and M. Moretti.
• Title: Fisheries Survey of the San Juan River, Utah 1987.
• USFW Year: 1988.
• USFW - Doc Type: Pub. No. 88-1,
• Copyright Material: NO

Appendix B. Relative abundances of fishes in the San Juan River, Utah in
summer 1987. Fish/hour is the relative abundance calculated from
electrofishing catches in the first mile of each 5-mi reach, RMI
135-16. Effort is the hours of effort expended in the first mile
of each 5-mile reach.

Fish Per hour
Effort flannelmouth bluehead unidentified channel striped
RMI hr) carp sucker sucker sucker catfish bass
135-130 0.22 67.3 152.6 22.4 76.3 9.0 0
130-125 0.35 59.4 76.4 11.3 84.9 5.7 2.8
125-120 0.31 51.1 191.5 25.5 137.2 16.0 0
120-115 0.20 50.0 145.0 10.0 35.0 10.0 0
115-110 0.33 97.9 110.1 6.1 104.0 15.3 0
110-105 0.30 56.3 106.0 3.3 59.6 3.3 0
105-100 0.42 44.8 82.5 0 54.2 2.4 0
100- 95 0.37 43.0 104.8 0 35.0 2.7 0
95- 90 0.23 69.1 90.8 0 34..6 0 0
90- 85 0.22 40.0 40.0 0 97.8 22.2 0
85- 80 0.30 10.0 46.7 0 10.0 10.0 0
80- 75 0.31 32.3 19.4 3.2 32.3 19.3 3.2
75- 70 0.35 34.5 43.2 5.6 31.7 31.7 0
70- 65 0.27 31.3 62.5 0 13.9 45.2 0
65- 60 0.29 34.7 45.2 0 10.4 38.2 0
60- 55 0.22 48.9 53.3 0 48.9 17.8 0
55- 50 0.38 47.4 26.3 2.6 50.0 57.9 0
50- 45 0.35 28.3 59.3 2.8 0 59.3 0
45- 40 0.31 25.9 42.1 6.5 51.8 61.5 0
40- 35 0.31 22.3 6.4 0 50.9 6.4 0
35- 30 0.17 0 0 0 5.7 22.9 0
30- 25 0.40 50.1 10.0 0 25.0 47.6 0
25- 20 0.33 6.0 6.0 0 3.0 6.0 0
20- 16 0.40 19.8 2.5 0 7.4 5.0 0