7017

• UCREFRP Catalog Number: 7017
• Author: Starnes, W. C.
• Title: Colorado River Basin
• USFW Year: 1989.
• Copyright Material: NO

Discusses briefly the history of the occurrence of G.
elegans in the Colorado Basin, the history of impoundments
of the lower Colorado (Hoover Dam, 1935; Davis Dam, 1951)
and their impact on this species. Documents the persistence
of population in Lake Mohave.
Dill, W.A. 1944. The fishery of the lower Colorado River. Cal.
Fish & Game 30:109-211.
Reports that G. elegans was already rare in the lower
Colorado in the early 1940s.
Jonez, A., and R.C. Sumner. 1954. Lakes Mead and Mohave
investigations. Nev. Game & Fish Comm. Rpt. 186 p.
(Not seen). Apparently, based on spawning observations,
documents a bonytail population attempting to reproduce in
Lake Mohave.
La Rivers, I. 1962. Fishes and fisheries of Nevada. Nevada
State Game & Fish Comm., Carson City. 782 p.
States that G. elegans formerly occurred in Colorado River
bordering Nevada and in lower Virgin River, G. robusta
occurs in the Virgin and Moapa systems (=seminuda), and G.
robusta iordani in the Pharanagat Valley at Crystal Spring.
Miller, R.R. 1955 Fish remains from archaeological sites in
the lower Colorado River basin, Arizona. Mich. Pap. Sci.,
Arts, Let. 40 (1954):125-136.
Documents, based on skeletal remains, the probable former
occurrence of Gila cypha in the Boulder Canyon area of the
lower Colorado before the completion of Hoover Dam; the
Boulder-Black canyon area may have been the downstream
extent of the former range.
Minckley, W.L., D.G. Buth, and R.L. Mayden. 1989. Origin of
brood stock and allozyme variation in hatchery-reared
bonytail, and endangered North American cyprinid fish.
Trans. Amer. Fish. Soc. 118:131-137.
As with several previous reports, documents the locale of
broodstock (Lake Mohave) used in propagation of bonytail.
Moffitt, J.W. 1942. A fishery survey of the Colorado River
below Boulder Dam. Cal. Fish & Game 28:76-86.
Reports G. elegans still present in the tailwater of Boulder
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