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Last modified
7/14/2009 5:02:36 PM
Creation date
5/22/2009 5:27:49 PM
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UCREFRP
UCREFRP Catalog Number
9532
Author
Anderson, R. and G. Stewart.
Title
Riverine Fish Flow Investigations.
USFW Year
2000.
USFW - Doc Type
Fort Collins.
Copyright Material
NO
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<br />reconnect with the river in the fall or winter and that fish collected there would parish. Sand <br /> <br />shiners comprised 57% of the fish caught in 32 seine hauls at the Sevens station on August 18, <br /> <br /> <br />1999 (Table & and Appendix Table A3.3). Very few sand shiner were found in isolated pools <br /> <br /> <br />and when those habitats are excluded the percent of sand shiner is 66% of the total (Table 8). <br /> <br /> <br />At Sevens about 6% of the fish seined were native species and most of those were speckled <br /> <br /> <br />dace. <br /> <br />At Duffy the percent of native fish collected by seining was 59% for the total and <br /> <br /> <br />43% with isolated pools excluded. Speckled dace were much more common at Duffy (24%) <br /> <br /> <br />than at Sevens (4%). In an isolated pool 526 roundtail chub YOY were ~ounted from one <br /> <br /> <br />seine haul (Table AJ.3). Even without that sample, roundtail chub YOY were much more <br /> <br /> <br />common at Duffy (18%) that at the Sevens (1.4%). Even though YOY chub were commonly <br /> <br /> <br />collected in the August seining, no YOY chub were collected during elect(ofishing in <br /> <br /> <br />September. Small mouth bass comprised only 3.5% ofthe fish in seining, but were abundant <br /> <br /> <br />in the electrofishing samples. Bass YOY were typically in deeper water with boulders <br /> <br /> <br />providing cover and this habitat was more. difficult to effectively seine. <br /> <br /> <br />38 <br />
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