7125 ‎(2)‎

• UCREFRP Catalog Number: 7125
• Author: McAda, C. W.
• Title: Aspects of the Life History of Three Catostomids Native to the Upper Colorado River Basin.
• USFW Year: 1977.
• USFW - Doc Type: Utah State University,
• Copyright Material: YES

Table 2. Relative abundance of fish collected with trammel nets at Echo Park, Dinosaur National
Monument, 1974-76.

pecies
Oct 5-10
ToaT-
catch 1974
Nov 14-18
Total ercentage
catch of catch
A r
otal
catch
25-Ma 7
Percentage
of catch

Total
catch 1975
Ma 10-22
Percentage CPUEa
of catch
Jul
Total
catch
y 5-10
Percentage
of catch
Nov. 14-16
Total Percentage
catch of catch 1976
May 2-5
Total Percentage
catch of catch
Catostomus Zatipinnisb 49 55.1 14 22.5 34 33.3 . 0.58 100 50.0 12 36.4 58 41.1
Catostomus disccbolusb 18 20.2 8 12.9 17 16.7 0.29 27 3.5 16 48.5 29 20.6
%yrauchen texanusb 0 3 3.3 6 9.6 1 1.0 0.02 -- -- 1 3.0 1 0.7
Catostomus commersoni 10 11.2 3 4.8 7 6.9 0.12 4 2.0 3 9.1 11 7.8
Ptychocheilus Zuciusb 1 -- -- -- -- -- -- -- 1 0.5 -- -- 2 1.4
Gila robustab 1 1.1 4 6.5 12 11.8 0.21 26 13.0 1 3.1 9 6.4
Cyprinus carpio 2 2.2 13 20.9 9 8.8 0.15 8 4.0 -- -- 18 12.8

Gila sp.c v
9
--
--
--
--
3
2.9
0.05
2
1.0
--
--
1
0.7
o
IctaZurus punctatus 6 6.7 7 11.3 5 4.9 0.09 31 15.5 -- 7 4.9

Ictalurua meZas o -- -- -- -- 3 2.9 0.05 -- -- -- -- -- --
c
SaZmo gairdneri -- -- 5 8.1 9 8.8 0.15 -- -- -- -- 4 2.8
Salmo trutta -- -- 2 3.4 2 2.0 0.03 1 0.5 1 3.1 1 0.7
a CPUE - catch per unit effort; 1 unit of effort 10 m of net (2.1 m deep) set for 10 hrs.
b Denotes native specie s.
C Members of the humpba ck chub co mplex [Holden and StaZnaker, 19701.
N