9313 ‎(2)‎

• UCREFRP Catalog Number: 9313
• Author: Burdick, B. D., J. Flair, M. Lloyd and B. Scheer.
• Title: Native and Nonnative Fish Use of Two Gravel-Pit Ponds Connected to the Upper Colorado River at 29-5/8 Road Near Grand Junction, Colorado.
• USFW Year: 1997.
• USFW - Doc Type: Project number CAP-6-GP,
• Copyright Material: NO

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Critical habitat has been designated within the humpback chub's historical
range in the following sections of the Upper Basin (59 F.R. 13374).
Colorado. Moffat County. The Yampa River from the boundary of Dinosaur
National Monument in T. 6 N., R. 99 W., section 27 (6th Principal
Meridian) to the confluence with the Green River in T. 7 N., R. 103 W.,
section 28 (6th Principal Meridian).
Utah Uintah County and Colorado Moffat County. The Green River from
the confluence with the Yampa River in T. 7 N., R. 103 W., section 28 (6th
Principal Meridian) to the southern boundary of Dinosaur National Monument
in T. 6 N.. R. 24 E., section 30 (Salt Lake Meridian).
Utah. Uintah and Grand Counties. The Green River (Desolation and Gray
Canyons) from Sumner's Amphitheater in T. 12 S., R. 18 E., section 5
(Salt Lake Meridian) to Swasey's Rapid in T. 20 S., R. 16 E., section 3
(Salt Lake Meridian).
Utah Grand CouritY• and Colorado Mesa County. The Colorado River from
Black Rocks in T. 10 S., R. 104 W., section 25 (6th Principal Meridian) to
Fish Ford in T. 21 S., R. 24 E., section 35 (Salt Lake Meridian).
Utah Garfield and San Juan Counties. The Colorado River from Brown Betty
Rapid in T. 30 S., R. 18 E., section 34 (Salt Lake Meridian) to Imperial
Canyon in T. 31 S., R. 17 E., section 28 (Salt Lake Meridian):
The bonytail is the rarest native fish in the Colorado River. Formerly
reported as widespread and abundant in mainstem rivers (Jordan and ~vermann
1896), its populations have been greatly reduced. The fish is presently
represented in the wild by a low number of old adult fish in Lake Mohave and
perhaps other lower basin reservoirs (USFWS 1990a). The last known riverine
area where bonytail were common was the Green River in Dinosaur National
Monument, where Vanicek (1967) and Holden and Stalnaker (1970) collected 91
specimens during 1962-1966. From 1977 to 1983, no bonytail were collected
from the Colorado or Gunnison rivers in Colorado or Utah (Wick et al. 1979,
1981; Valdez et al. 1982b; Miller et al. 1984). However, in 1984, a single
bonytail was collected-from Black Rocks on the Colorado River (Kaeding et al.
1986). Several suspected bonytail were captured in Cataract Canyon in 1985-
1987 (Valdez 1985, 1987, 1988).