7824

• UCREFRP Catalog Number: 7824
• Author: Miller, W. H., et al.
• Title: Colorado River Fishery Project, Part III, Final Report, Contracted Studies.
• USFW Year: 1982.
• USFW - Doc Type: \
• Copyright Material: NO

FIGURES, Continued
Tolerance and Preferences of Colorado River
Endangered Fishes to Selected Habitat Parameters, Continued
Number
8 Relative frequency distribution of selected temperatures
by juvenile Colorado squawfish. Data pooled for
third hour, one observation/minute for fish acclimated
to 140, 200, and 260 C. See Figure 3 for explanation
of figure . . . . . . . . . . . . . . . . . . . . . . .
9 Relative frequency distribution of selected temperatures
for adult Colorado squawfish. Data pooled for third
hour, one observation/minute for fish acclimated to
140, 200, and 260 C . . . . . . . . . . . . . . . . . . .
10 Relationship of preferred temperature (mean of individual
modes) to acclimate temperature for Colorado squawfish.
Final preferendum is the point of intersection with
the 45 degree line (i.e. that point where selected
temperature = acclimation temperature). Open circles
represent juvenile fish; solid circles adult fish . . . .
11 Relative frequency distribution of juvenile Colorado
squawfish in 8 compartments of TDS gradient deviance
(Figure 2) with and without gradient established.
Numbers I, II, and III are replicates for controls
and treatments. Number over vertical bar is conduc-
tivity in mmhos. Data on location and conductivity
are values 24 hours after start of experiment . . . .
12 Relative frequency distribution of juvenile bonytail
chubs in 8 compartments of TDS gradient device
(Figure 2) with and without gradient established.
Numbers I, II, and III are replicates for controls
and treatments. Number over vertical bar is conduc-
tivity in mmhos. Data on location and conductivity
are values 24 hours after start of experiment . . . . . .
13 Relative frequency distribution in 8 compartments of
the TDS gradient device for pooled data from 3
treatments and 3 controls for each species. Numbers
above vertical bar are the range of conductivity
(mmhos) for that compartment over the 3 treatments
(Figures 11 and 12) . . . . . . . . . . . . . . . . . . .
14 Relative frequency distribution of juvenile humpback
chubs in 8 compartments to TDS gradient device
(Figure 2) with and without gradient established.
Numbers I, II, and III are replicates for controls
and treatments. Number over vertical bar is conduc-
tivity in mmhos. Data on location and conductivity
are values 24 hours after start of experiment, N = 20,
8-12 cm fish/replicate . . . . . . . . . . . . . . . . .
15 Relative frequency distribution of juvenile humpback
chubs in 8 compartments to TDS gradient device
(Figure 2) with and without gradient established.
Numbers I, II, and III are replicates for controls
and treatments. Number over vertical 'bar is con-
ductivity in mmhos. Data on location and conductivity
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