7203

• UCREFRP Catalog Number: 7203
• Author: Osmundson, D. B. and L. R. Kaeding.
• Title: Colorado Squawfish and Razorback Sucker Grow-Out Pond Studies as Part of Conservation Measures for the Green Mountain and Ruedi Reservoir Water Sales
• USFW Year: 1989.
• USFW - Doc Type: Final Report.
• Copyright Material: NO

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Table 3. Frequency of occurrence and mean number per fish for items in
stomachs of Colorado squawfish from West Pond. adt - adult; lar = larvae.
1986
1987
9/26 10/10 6/2 8/5 9/3
Sample size (n) 19 3 19 10 16
Percent empty
Stomachs only 21.1 33.3 84.2 30.0 75.0
Stom. and intest. 5.3 - 31.6 20.0 37.5
No. with stom. food 15 2 3 7 4
Chironomidae & % 93.3 100.0 66.7 14.3 75.0
Ceratopogonidae x 4.5 2.5 0.7 0.4 0.8
adt & imago (SD) (3.4) (2.1) (0.6) (1.1) (0.5)
% 33.3 50.0 33.3 0.0 0.0
Chironomidae lar x 5.7 0.5 2.0 0.0 0.0
(SD) (15.3) (0.7) (3.5)
Corixidae adt % 13.3 0.0 0.0 14.3 0.0
& nymph x 0.1 0.0 0.0 0.3 0.0
(SD) (0.4) (0.8) (-)
Notonectidae % 0.0 0.0 0.0 0.0 75.0
adt & nymph x 0.0 0.0 0.0 0.0 1.0
(SD) (0.8)
% 0.0 0.0 0.0 85.7 0.0
Ephemeroptera adt x 0.0 0.0 0.0 29.6 0.0
(SD) (24.0) (-)
% 0.0 0.0 0.0 14.3 0.0
Araneae x 0.0 0.0 0.0 0.1 0.0
(SD) (0.4) (-)
% 0.0 0.0 0.0 14.3 0.0
Acarina x 0.0 0.0 0.0 14.3 0.0
(SD) (0.4) (-)
% 6.7 0.0 0.0 0.0 0.0
Cladocera x 0.2 0.0 0.0 0.0 0.0
(SD) (0.8)
23.