7618

• UCREFRP Catalog Number: 7618
• Author: Rose, K. L. and D. R. Hann.
• Title: Summary of Historic Habitat Modeling on the Yampa River Using the Physical Habitat Simulation System
• USFW Year: 1989.
• USFW - Doc Type: Final Report.
• Copyright Material: NO

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TABLE OF CONTENTS

Page Number

INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

STUDY SITES

Spawni n9 Bar ................................................... 3

Replicate Site ................................................. 8

Maybe 11 ........................................................ 10
12

Government Bridge

............................................. .

MAPS

Study Area Map ................................................ M. 1

Figure 1. Spawning Bar Study Site, RM 16.5 ................... M.2
Figure 2. Replicate Study Site, RM 18.5 ...................... M.3
Figure 3. Maybell Study Site RM 72.0 ........................ M.4
Figure 4. Government Bridge Study Site RM 97.1 ............... M.5

TABLES

Table 1. Four modifications made by Wahle to original IFG4
data decks developed by Keith Rose in 1983 ........... 4
Table 2. Comparison of velocity adjustment factors for
five data decks for spawning bar transects 6,7,8 ..... 6
Table 3. Comparison of velocity adjustment factors for
spawning bar transects 1 thru 5, right & left ........ 6
Table 4. Velocity Prediction Error & Velocity Adjustment
Factor percent ratings for the spawning bar

IFG4 data decks aa~5~..5aa.a.a.....=~=o#=**====...~'te 7

Table 5. The Weighted Usable-Area versus discharge
relationship for Colorado squawfish adult spawning
habitat at Spawning Bar Study Site ................... 7
Table 6. Three changes made by Wahle to original IFG4 data
decks developed by Keith Rose in 1983 ................ 9
Table 7. Velocity Prediction Error & Velocity Adjustment
Factor percent ratings for Replicate IFG4

data decks ........................................... 9

Table 8. Weighted-Usable-Area versus discharge relationship
for Colorado squawfish adult & spawning Colorado
squawfish & adult Humpback chub at Replicate

Study Sit e ........................................... 11

Table 9. Velocity Prediction Error & Velocity Adjustment
Factor percent ratings for Maybell IFG4 data deck 11
Table 10. The Weighted-Usable-Area versus discharge
relationship for adult Colorado squawfish at the
Maybell Study Site ................................... 13