6025

• UCREFRP Catalog Number: 6025
• Author: Kaeding, L. R. and D. B. Osmundson.
• Title: Report on the Studies of the Endangered Fishes of the Upper Colorado River As Part of Conservation Measures for the Green Mountain and Ruedi Reservoir Water Sales
• USFW Year: 1988.
• USFW - Doc Type: Second Annual Progress Report.
• Copyright Material: NO

Table 4. Catch rates for fish species collected during young-of-the-year
sampling in two adjacent Colorado River reaches, 1986. n = number of seine
hauls.
15-Mile Reach
----------------------
--- 18-Mile Reach
---------------------
---
Mean Mean

------------------- fish/100
--------- m2 SD
------------- n
------ fish/100 m2
--------------- SD
--------- n
---
Colorado squawfish 0.0 - 12 4.0 7.9 14
Roundtail chub 73.7 81.5 11 21.8 8.5 4
Bluehead sucker 0.0 - 11 57.9 67.6 4
Flannelmouth sucker 0.0 - 11 2.5 2.1 4
Unidentified sucker 270.0 511.3 11 0.0 - 4
Common carp 0.0 - 11 1.8 2.0 4
Black bullhead 0.0 - 11 0.4 0.8 4
Largemouth bass 0.4 1.3 11 0.4 0.8 4
Green sunfish 1.3 2.6 11 11.9 23.8 4
Fathead minnow 206.2 236.1 11 77.6 23.0 4
Red shiner 64.3 108.5 11 36.3 31.4 4
Sand shiner 29.0 44.9 11 8.1 8.9 4
Speckled dace 39.8 69.7 11 22.1 25.4 4
Mosquitofish 1.0 3.5 11 0.0 - 4
Plains killifish 0.1 0.2 11 0.0 - 4
Unidentified fish 3.0 6.0 11 0.0 - 4
14