9683

• UCREFRP Catalog Number: 9683
• Author: Valdez, R. A.
• Title: a Survey of Fish Collections in the White River, Utah.
• USFW Year: 1984.
• USFW - Doc Type: Logan, UT.
• Copyright Material: NO

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sampled by the FWS in 1981. A total of 13 sample sites were associated with
the ERI (1982) efforts in 1981. Cooperative efforts between Radant et
al.(1983) and the FWS (Miller et ale 1982) reduced the number of sample
sites directly attributed to Radant et ale (1983) to three. The
distribution of fish sample sites for 5-mile reaches within the Wflite River,
Utah (Figure 1) reveals the variation in sampling intensity. From one to
eight sites were sampled for fishes within each five-mile reach. A paucity
of samples appears to occur between RM 35 and RM 50, in which only a total
of six sites were sampled.

Fish Species Composition and Distribution
A total of 17 fish species have been reported from the White River in
Utah (Table 1) by six investigative groups between 1974 and 1982. These
represent the following six families and the respective number of species:
Cyprinidae (8), Catostomidae (3), Ictaluridae (2), Centrarchidae (2),
Cottidae (1) and Salmonidae (1). Hybrids between razorback and flannelmouth
suckers have also been found, as well as intergrades of the Gila complex,
e.g. humpback chub x roundtail chub. Mountain whitefish (Corregonidae) are
numerous in the upstream reaches of the White River in Colorado as shown by
Prewitt et al.(1978). Common and scientific names of all fishes are
presented in Table 1, while only common names are used in the text.
The most abundant species in the White River in Utah was the red
shiner, according to four (Crosby 1975a, Lanigan and Berry 1979, Miller et
ale 1982, Radant et ale 1983) of the five studies conducted mostly in Utah