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BIBLIOGRAPHIC DATA 1. Report No. 2. 3. Recipient's Accession No. SHEET 7 BLM UT TR-80 O1 & FR-FWS 4. Title and Subtitle 5. Report Date Distribution and Abundance of Endemic Fishes in the White October 1, 1979 River in Utah 6. 9. Performing Organization Name and Address 10. Project/Task/Work Unit No. - Utah Cooperative Fishery Research Unit U. S. Fish and Wildlife Service 11. Cogtrac /Grant No. NS Er54]U-0156 Utah State University Logan, Utah 84322 BLM 14-16-DD66_-78-0925 12. Sponsoring Organization Name and Address 13. Type of Report & Period U. S. Bureau of Land Management Covered Utah State Office Final 7/78 - 10/79 University Club Building 14. Salt Lake City, Utah 84111 15. Supplementary Notes Funded by U. S. Bureau.of Land Management, unpublished, Final Report, 84 pp, 24 tables 26 figures 16. Abstracts The, fish population of the White River was similar to that in other eastern Utah streams. Red shiners were most abundant, followed by roundtail chubs, flannelmouth suckers, speckled dace, fathead minnows, carp, and channel catfish, in decreasing order of magnitude. Bluehead suckers, black bullheads, green sunfish, brown trout, and Colorado squawfish individually comprised less than 0.5% of the total number of fish. Native fish were more abundant at upstream stations; exotic fish were more abundant at downstream stations. Threatened and endangered fish were found throughout the river. Fifteen adult squawfish were captured or observed, one humpback sucker x flannelmouth sucker hybrid and a possible humpback chub x bonytail chub hybrid were captured. No juvi,nile or larval squawfish were found. 17. Key Words and Document Analysis. 17a. Descriptors aquatic animals, aquatic biology, fishes, freshwater fishes, water chemistry, non-game fish, aquatic habitat, fish distribution 17b. Identifiers/Open-Ended Terms Utah, White River, Uintah County, fishes, endangered fish species,endemic fish species, oil shale, public land 17c. COSATI Field/Group 18. Availability Statement 19.. Security Class (This 21. No. of Pages Limited Report) UNC; 84 20. Security Class ( his 22. Price Page UNCLASSIFIED °^ ^ 55 ...a.. -- LNUURSLI) BY ANSI AND UNESCO. THIS FORM MAY BE REPRODUCED uscoMM-oc 8269-P74