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Last modified
7/14/2009 5:02:29 PM
Creation date
5/20/2009 11:01:26 AM
Metadata
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Template:
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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5 <br />It was the purpose of this study to determine the abundance and distri- <br />bution of endemic fish in the White River in Utah during spring runoff, when <br />adult fish might ascend the river to spawn, and following runoff, when larval <br />fish might be present. <br />MATERIALS AND METHODS <br />The White River in Utah flows 66 mi (106 km) from the Colorado border <br />to its confluence with the Green River. The upper 42 mi (67 km) which <br />flows through both public and private land was surveyed in both 1978 (Lanigan <br />et al., 1979; Lanigan and Berry, 1979) and in 1979. The lower portion flows <br />through the UOIR where a fishery survey was conducted in 1978 by the <br />USFWS's Vernal Fisheries Assistance Office. Information from the latter <br />survey is included in this report. Consequently, data on the entire length <br />of the White River in Utah is presented instead of only the upper portion <br />as contracted. <br />Sampling Methods <br />The river on the Reservation was surveyed in 1978 on July 8-11, just <br />after the river began to receed from the peak of spring runoff, and again <br />on September 26-28. Sampling was conducted over the entire 24 mi (39 km) of <br />the river using an electrofishing boat equipped with a 3-phase high cycle, <br />240 v, AC generator. <br />The upper 42 mi (67 km) of the river on BLM and private land was <br />surveyed on July 21-25, July 30-August 2, August 21-24, and September 11-14 <br />during 1978 and on April 30-May 3, May 29-31 and June 11-14 in 1979. Various <br />types of sampling gear and techniques were tried during the first few <br />sampling trips in 1978. Trammel nets were floated through pools; frame <br />nets were set overnight in backwater areas; experimental gill nets were set <br />for short time periods in pools, seine hauls were made with various types <br />of seines; electrofishing was conducted; and a combination of electrofishing
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