6037

• UCREFRP Catalog Number: 6037
• Author: U.S. Fish and Wildlife Service.
• Title: Endangered Colorado River Habitat Utilization Curves-Draft.
• USFW Year: 1984.
• USFW - Doc Type: \
• Copyright Material: NO

Title: Colorado squawfish juvenile (6Q-249 mm) depth utilization
curve.
Parameters: Total water column depth (f t)
Period: Year around
Location: Colorado, Green, and White River reaches designated
concentration or high concentration areas for juvenile
Colorado squawfish.
Data utilized:
All depth at paint of capture data in RARE file for Colorado
squawfish 361-249 mm TL 1979-1983.
Data excluded:
Radio telemetry data due to limited sample sizes.
Assumptions:
1. Mean depth at capture site reflects true depth preferences.
2. Juvenile Colorado squawfish depth utilization is the
same throughout the upper basin.
Constraints:
1. Curves are applicable to the upper Colorado River system
occupied by juvenile Colorado squawfish.
Curve coordinates:
X (ft) Y (SI)
0.0 0.0
0.2 0.2
0.5 0.5
0.6 1.0
1.8 1.0
2.2 0.5
3.0 - 0.2
4.0 0.1
7.0 0.0
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