8214

• UCREFRP Catalog Number: 8214
• Author: Modde, T., D. Irving and R. Anderson.
• Title: Habitat Availability and Habitat Use of Endangered Fishes in the Yampa River during Baseflow Periods.
• USFW Year: 1997.
• USFW - Doc Type: Vernal, Utah and Grand Junction, Colorado.
• Copyright Material: NO

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LIST OF FIGURES

Figure 1. Yampa River Study Area, confluence with the Green River at Echo Park to Craig,
Colorado (river kilometer 0-224) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 2. Annual hydro graph for the Yampa River, Maybell gage for 80%, 50%, 20%

exceed
ence
flows 9

Figure 3. Fall hydro graph for the Yampa River, Maybell gage. . . . . . . . . . . . . . . . . . . . . . . . . . .9

Figure 4. 1994 fall hydro graph for the Yampa River, Maybell gage. . . . . . . . . . . . . . . . . . . . . . 10

Figure 5. 1995 fall hydro graph for the Yampa River, Maybell gage. . . . . . . . . . . . . . . . . . . . . . 10

Figure 6. 1996 fall hydro graph for the Yampa River, Maybell gage. . . . . . . . . . . . . . . . . . . . . . 11

Figure 7. Locations of four Colorado squawfish Ptychocheilus lucius monitored with radio
telemetry in Yampa Canyon between 4 July and 29 October, 1996 ................ 13

Figure 8. Locations of five humpback chub Gila cypha monitored with radio telemetry in
Yampa Canyon between 4 July and 29 October, 1996 .......................... 15

Figure 9. Locations of five channel catfish Ictalurus punctatus monitored with radio
telemetry in Yampa Canyon between 4 July and 29 October, 1996 ................ 16

Figure 10. The habitat composition at modeled flows for five habitat clusters in strata 2,3,
and 4, Yampa River, Colorado, 1996 ....................................... 24

Figure 11. The total an usable habitat available at modeled flows for five habitat clusters in
strata 2,3, and 4, Yampa River, Colorado, 1996 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Figure 12. The mean river width versus discharge relationship at modeled flows for five
habitat clusters in strata 2, 3, and 4, Yampa River, Colorado, 1996 ................ 28

Figure 13. The width versus discharge coefficient of variation of five habitat clusters in
strata 2, 3, and 4, Yampa River, Colorado, 1996 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 14. Strata 6, habitat composition for modeled flows for six habitat types. . . . . . . . . . . .34

Figure 15. Strata 6, habitat/flow relationship, results of four clusters combined ............34

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