8119

• UCREFRP Catalog Number: 8119
• Author: Valdez, R. A. and B. R. Cowdell.
• Title: Effects of Flow Regulation and Ice Formation on Overwinter Nursery Habitat and Survival of Age-0 Colorado Squawfish in the Green River Below Flaming Gorge Dam - Draft.
• USFW Year: 1996.
• USFW - Doc Type: Logan, Utah.
• Copyright Material: NO

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SITE 14 (RM 255.8)

Site 14 was a deep downstream chute channel located in the Ouray Wildlife Refuge (RM 255.8). This
backwater had an area of 1,650 m2 and a maximum depth of 5.0 ft. By February 4, an ice jam had.
diverted water into the dry, high water channel that formed this backwater. This diverted water created a
deep ( 6.0 ft), swift (>2.0 ftIsec), side channel in place of this backwater. On February 25, the jam had
cleared . leaving a backwater in the dry, high water channel, with little change to the habitat. Due to the
severely changing conditions in this habitat in February, is was not considered suitable habitat throughout
the winter.

y

10 feet

B

150 foot baseline

A

Bathymetric map of Site 14 (RM 255.8), showing waters edge and 1 ft contour lines.

Photographs of Site 14 (RM 255.8) taken September 1993 (top) and February 1994 (bottom).