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Last modified
7/14/2009 5:02:33 PM
Creation date
5/22/2009 6:45:56 PM
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UCREFRP
UCREFRP Catalog Number
8116
Author
Elmblad, W. R.
Title
Evaluation of Stocking Channel Catfish in Kenney Reservoir, Colorado.
USFW Year
1998.
USFW - Doc Type
Grand Junction, CO.
Copyright Material
NO
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measured by weight and not actually counted. The purpose of this plant was to create a reservoir <br />channel catfish population to be studied to determine if this species would be a suitable sportfish for <br />the area. The mean total length (TL) for the 3,000 channel catfish when planted in 1992 was 195 <br />mm and the mean weight was 61 g. A113,000 fish were mazked with an adipose fin clip for later <br />identification during the study. <br />Channel catfish are being considered for sportfishery use at Kenney Reservoir for the following <br />reasons: <br />1) stocking channel catfish in the reservoir would not involve introducing a new species to <br />the White River; <br />2) a naturally reproducing population of channel catfish already exists downstream of the <br />reservoir in endangered fish habitat; <br />3) the demersal nature of channel catfish should lessen the potential for escapement over the <br />spillway. Likewise the depth of the outlet 12.8-15.2 m should be below depths usually <br />inhabited by channel catfish. Fish leaving through the outlet may receive turbine and <br />pressure-induced injuries; <br />4) the wild channel catfish population in the reservoir does not appear to be increasing with <br />natural reproduction; <br />5) channel catfish have shown they will tolerate extremely turbid water conditions found in <br />the White River and Kenney Reservoir; <br />6) the reservoir contains abundant crayfish and fathead minnow populations which aze good <br />prey for channel catfish. <br />The CDOW sought to obtain reproductively sterile channel catfish for stocking so if fish escaped <br />downstream they would not be able to reproduce in endangered fish habitat. However, no sources <br />of sterile fish could be found and the CDOW was unsuccessful for two years trying to produce <br />sterile, triploid channel catfish in their facilities. Therefore, the 3,000 planted fish were fertile. <br />III. Objectives <br />One objective of the study was to monitor population size, growth, and survival of channel catfish <br />stocked in Kenney Reservoir. The retention, growth, and survival characteristics of channel catfish <br />in the reservoir would determine the sportfishery potential of this species. No further stocking would <br />be done if channel catfish do not perform well in the reservoir. <br />The other objective was to document escapement of channel catfish from Kenney Reservoir <br />downstream in the White River and determine, if possible, it's magnitude and timing. Channel <br />4 <br />
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