8139

• UCREFRP Catalog Number: 8139
• Author: McAda, C., C. Philips, C. R. Berry and R. S. Wydoski.
• Title: A Survey of Threatened and Endangered Fish in Southeastern Utah Streams.
• USFW Year: n.d.
• USFW - Doc Type: \
• Copyright Material: NO

7
(microhms) data, collected from October 1971 to September 1975, was sum-
marized by season. A mean was calculated for each season (winter - December,
• Summer - June Jul
January., February; spring - March, April, May, July, August;
fall - September, October, November) using data from the entire time span.
Maximum and minimum values are also given.
The U.S.G.S. collected extensive water quality data at four stations
within the NRL. This data was summarized by season for the period October
1971 to September 1975. Mean, maximum and minimum values were calculated
for each parameter.
Utah State Health Department water quality records (Figure 3) for the
No summarization of their
ded
e in
d A
M
1976
l
i
t 1975 t
.
u
per
o
wer
c
o
ugus
ay
data was done due to the short period of time over which data has been col-
lected.

Field Work
The majority
to June 1977
cted from Februar
Fi
li
h
d
.
y
s
samp
ng was con
u
of collections were made with a 500 watt, D.C. backpack shocker. Certain
stations were sampled with a 5 m seine (3 mm mesh). The Green River in
Desolation Canyon was sampled with 33 m trammel nets with an inside mesh
of 2.5 cm and an outside mesh of 25 cm. Trammel nets were fished overnight
and for short periods during the day. The Green River was also sampled with
33 m (2.5 cm mesh) and 66 m (1.25 cm mesh) seines.
On the smaller rivers and streams, fish were collected from 100 m
sections. Longer sections were sampled in certain streams to insure a
representative sample of the fish. On streams where longer sections were
sampled
ive numbers of fish per 100 m. No
the data were adjusted to
,
g
consideration was given to stream width.
Aquatic invertebrates were sampled using a kick screen. Major groups