7154

• UCREFRP Catalog Number: 7154
• Author: Holden, P. B.
• Title: Habitat Requirements of Juvenile Colorado River Squawfish.
• USFW Year: 1977.
• USFW - Doc Type: FWS/OBS-77/65,
• Copyright Material: NO

LIST OF FIGURES

Fi gure

Page

1. Map of the Green River in east-central Utah 4

2. Daily water temperature variation from main
channel stations, Green River, Utah, 1977 13

3. E1ectivity curves for substrate, velocity, depth,
and habitat type for young-of-the-year Colorado
squawfi sh (30-64 mm) 15

4. Electi vi ty curves for substrate, velocity, depth,
and habitat type for juvenile Colorado squawfish
(65-200 mm) 16

5. E1ectivity curves for substrate, velocity, depth,
and habitat type for subadu1t Colorado squawfish
(200+ mm) 17

6. E1ectivity curve for temperature for all sizes of
Colorado squawfish . 18

7. E1ectivity curves for substrate, velocity, depth,
and habitat type for young-of-the-year humpback
chub (30-70 mm) 19

8. Electivity curves for substrate, velocity, depth,
and habitat type for juvenile humpback chub (90-
150 mm) 21

9. E1ectivity curves for substrate, velocity, depth,
and habitat type for adult humpback chub (200+
mm) 22

10, E1ectivity curve for temperature for all sizes of
humpback chub 23

11. Turbidity levels of the Green River between Jensen
and Green River, Utah, as measured during the
present study 24

12. Depth contours of the Green River near a backwater
containing young-of-the-year Colorado squawfish 25

13. Velocity iso1ines of the Green River near a back-
water containing young-of-the-year Colorado
squawfi sh 26