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

s
Table 6. Mean relative abundances of fishes in the San
Juan River, Utah in spring and summer 1987. --_
Fish/mile the average relative abundance
calculated from electrofishing catches in the ~
first mile of each 5-mi reach, RMI 135-16,
df=1,45a.
Fish/Mile
Species __ Spring Summer F P( F)
unidentified suckers 11.5 13.5 0.34 0.56
carp 9.8 12.5 1.15 0.30
flannelmouth sucker 5.9 18.9 26.39 0.01
bluehead sucker 0.4 1.2 4.39 0.05 !
channel catfish 1.4 6.8 14.66 0.01'
aElectrofishing catch for summer is presented in units of
fish per hour in Appendix B.

Table 7. Mean relative abundances of fishes in the San -
Juan River, Utah 1987, RMI 135-16, by braided ~
and non-braided reaches. Fish/mile is the
average relative abundance, spring and summer
combined, calculated from electrofishing catches
in braided (N=22) and non-braided reaches (N=26)
of the river.
Fish/Mile
Species Braided Non-braided F P( F)
unidentified suckers 20.8 5.4 17.0 O.OT !
carp 15.4 7.6 10.0 0.01
flannelmouth sucker 20.6 5.4 39.4 0.01
bluehead sucker 1.3 0.4 5.9 0.02
channel catfish 1.6 6.2 13.0 0.01
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