7273

• UCREFRP Catalog Number: 7273
• Author: Prewitt, C. G., E. J. Wick and D. E. Snyder.
• Title: Population and Habitat Monitoring Program for the Endangered Humpback Chub ‎(
• USFW Year: 1978.
• Copyright Material: NO

1q.
2. Deep water habitat areas near meander bends in Horsethicf
and Ruby Canyons.
3. Backwater channels in the Black Rocks area and near
chute channels at low flows.
4. Remote location.
Major areas of concern:
1. Extensive silt deposition throughout the entire trend
zone, most notable in the side channel portions of the
Black Pocks area.
Water quality impacts:
1. Sewage effluent from Grand Valley population centers.
Water quantity impacts:
1. Consumptive use in Grand Valley population centers.
2. Headwaters transmountain diversion.
Land-use impacts:
Nonce, noted
Habitat Measure;-,lent. Areas
Depths, velocities, i-:idths and cross-sectional areas at various dis-
charges as predicted by the WISP computer program for each transect of each habi-
tat measurement area are presented in Appendix A along with cross-sectional
profiles including substrate notations. The data base gathered at these
habitat measurement areas may be used in numerous computer programs to assess
the effects upon depth and velocity of low flows or altered stream flow
regimes. The detailed channel morphometry and substrate characterization may
be used as a basis for determination of silting, scour, erosion or large particle
contribution which might degrade habitat conditions within larger portions of
the trend zone.
Also, the U.S. Fish and Wildlife Service computer program known as
HABITAT is already directly coupled to the WSP program. This program calculates