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Last modified
7/14/2009 5:02:34 PM
Creation date
5/20/2009 10:09:50 AM
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UCREFRP
UCREFRP Catalog Number
8232
Author
Burdick, B. D.
Title
Evaluation of Fish Passage at the Grand Valley Irrigation Company Diversion Dam on the Colorado River Near Palisade, Colorado.
USFW Year
1999.
USFW - Doc Type
CAP-17,
Copyright Material
NO
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Table 1. Summary of sampling effort and the number of native and nonnative <br />fishes captured and recaptured with electrofishing up- and downstream <br />of the Grand Valley Irrigation Company Diversion Dam, April through <br />October 1998. Note: Fish were only marked downstream of the diversion <br />dam. Refer to Appendix Tables B.1. and C.1. for the number of fish <br />marked and recaptured by species. <br />River Number of Hours Electrofishin4 Total Number <br />Stage/ Upstream of Downstream of Marked/Tagged or Total Number <br />Sampling Diversion Diversion Captured Recaptured <br />Date 187.6-185.5 185.3-183.0 Native Nonnative Native Nonnative <br />Pre-runoff <br />04/03 1.18 32 0 -- -- <br />04/13 0.81 128 21 0 0 <br />04/14 0.59 69 10 0 0 <br />04/16 0.77 83 18 0 0 <br />04/20 0.66 61 15 2 0 <br />04/23 0.81 110 14 2 0 <br />04/24 0.64 83 18 3 2 <br />04/27 0.77 109 58 0 0 <br />04/27 1.65 180 38 6 0 <br />Subtotal Upstrm 0.77 109 58 0 0 <br />Subtotal Dwnstrm 7.11 746 134 13 2 <br />Post-runoff <br />07/17 0.62 95 5 3 0 <br />07/20 0.59 84 8 1 0 <br />07/21 0.61 23 3 0 1 <br />08/19 0.88 283 19 0 0 <br />08/19 0.69 66 19 0 0 <br />08/20 0.99 292 24 0 0 <br />08/20 0.78 109 21 0 0 <br />08/24 0.83 370 21 0 0 <br />08/24 0.68 190 4 10 0 <br />08/26 0.89 258 22 0 la <br />08/26 0.88 i27 22 7 1 <br />08/28 0.93 326 23 0 0 <br />08/28 0.87 131 28 6 2 <br />09/23 0.87 175 10 0 0 <br />09/24 0.82 213 14 0 0 <br />10/15 0.94 102 11 0 0 <br />10/20 0.84 97 9 0 0 <br />10/21 0.78 86 10 0 0 <br />Subtotal Upstrm 8.77 2,202 163 0 1 <br />Subtotal Dwnstrm <br />------------- <br />-- 5.72 825 110 27 4 <br />- <br />- <br />TOTALS Upstrm --------- <br />9.54 --------------- -------------- <br />2,311 ------------ <br />221 ------------- <br />0 -------- <br />1 <br />TOTALS Dwnstrm 12.83 1,571 244 40 6 <br />a denotes the only marked fish recaptured upstream of the diversion dam. <br />8 <br />
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