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

Table 10. Total number collected, percent species composition (%),
and mean catch-per-unit-effort (CPUE, fish/100 m2) of _-
fishes in backwaters of the the San Juan River, Utah. Data
collected by UDWRa and BORb are presented separately for ~
respective areas of the river sampled.
Total No. Mean CPUE
Species Collected % (fish/100m2) St. Dev.

UDWR RMI 136-16
-------------------
carp --------------
7 -----
* -------------------
0.3 -------------
1.0
Colorado squawfish 3 * 0.2 0.8
speckled dace 108 5 10.4 51.1
red shiner 1196 51 80.6 18.3 ~
sand shiner 130 5 9.7 38.8
fathead minnow 583 25 51.1 9.7
suckerc 134 6 8.3 16.9
channel catfish 7 * 0.4 1.3
black bullhead 1 * 0.1 0.8
plains killifish 2 * 0.2 0.9 ~
mosquitofish 181 8 11.7 18.0
green sunfish
------------------- 2 * 0.2
---
-- 0.7
------------- _
--------------
BOR -----
RMI -----------
---
16-0
-------------------
carp --------------
1 -----
* -------------------
0.1 -------------
0.5
~
Colorado squawfish 9 * 1.0 2.2
speckled dace 12 * 2.1 5.5
red shiner 1,407 38 124.1 169.7
sand shiner -
fathead minnow 2,103 57 257.8 511.0
suckerc 4 * 0.4 0.9 ~
channel catfish 4 * 0.4 1.1
black bullhead -
plains killifish 6 * 0.6 1.3
mosquitofish 147 4 16.7 37.7
green sunfish -

aUDWR figures are based on the first seine haul of each backwater
(N=38).
bBR figures are based on first seine hauls, plus two second seine
hauls (N=15).
cbluehead sucker, flannelmouth sucker and unidentified sucker ~
combined.
*Less than 1.0 %. -

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