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Last modified
7/14/2009 5:02:29 PM
Creation date
5/20/2009 11:01:26 AM
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UCREFRP
UCREFRP Catalog Number
7204
Author
Lanigan, S. H. and C. R. B. Jr.
Title
Distribution and Abundance of Endemic Fishes in the White River in Utah
USFW Year
1979.
USFW - Doc Type
Final Contract Report.
Copyright Material
NO
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26 <br />As would be expected, the appearance of each station depended on water level. <br />Where the river was confined to a single channel, such as Station 10 (Figure 12), <br />the river was confined to a single channel, such as Station 10 (Figure 12), <br />there was little change in appearance except for some flooding of the lower <br />bank areas (Figure 18b). However, the increase in depth and velocity of <br />the main channel restricted sampling to the shallow flooded banks. Backwater <br />areas like Station 5 (Figure 8) typically consisted of small channels, <br />exposed sandbars and isolated pools which when flooded, offered fish a <br />protected environment from the rushing flood waters (Figure 18a). These <br />flooded shallow areas and pools were extensively sampled using the electro- <br />fishing boat. During high flows sampling was conducted by boat which was <br />floated from Station 5 to Station 15 (May) and from Station 2 to Station 15 <br />(June). On the float trips, sampling was conducted in all suitable habitat <br />rather than just at the 15 specific sample sites. <br />RESULTS AND'DISCUSSION <br />The total number of fish collected throughout the study was 19,957; <br />12 species of fish were represented (Table 1). Appendix A lists the individ- <br />ual sites and the number of fish collected at each site during each sampling <br />trip. Red shiners were the most commonly found species (62.5%), followed <br />by roundtail chubs (11.2%), flannelmouth suckers (8.6%), speckled dace (8.3%), <br />fathead minnows (5.5%), carp (2.6%), and channel catfish (.6%) (Table 2). <br />Bluehead suckers, black bullheads, green sunfish, and brown trout individually <br />comprised less than .5% of the total number of fish collected. <br />During a 1974-1975 study of the White River in Utah, (Crosby, 1975) the <br />predominate fishes were red shiner (51.3%), followed by speckled dace (24.8%), <br />flannelmouth suckers (10.3%), bluehead suckers (4.2%), fathead minnows (2.6%), <br />channel catfish (2.4%), roundtail chubs (2.2%) and carp (.8%) (Table 2).
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