Mitigation for the Construction and Operation of Libby Dam

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TABLE OF CONTENTS EXECUTIVE SUMMARY .............................................................................................................2 ACKNOWLEDGEMENTS.............................................................................................................5 LIST OF FIGURES .........................................................................................................................8 LIST OF TABLES.........................................................................................................................12 INTRODUCTION .........................................................................................................................15 PROJECT HISTORY ....................................................................................................................17 ASSOCIATIONS...........................................................................................................................20 DESCRIPTION OF STUDY AREA .............................................................................................21 Subbasin Description .........................................................................................................21 Drainage Area ....................................................................................................................21 Hydrology ..........................................................................................................................21 Fish Species .......................................................................................................................22 Reservoir Operation...........................................................................................................23 REFERENCES ..............................................................................................................................35 Chapter 1 .....................................................................................................................................38 Physical and Biological Monitoring in the Montana Portion of the Kootenai River Basin .....................................................................................................................38 Abstract..............................................................................................................................38 Introduction........................................................................................................................39 Methods .............................................................................................................................40 Bull Trout Redd Counts .........................................................................................40 Kootenai River Adult Bull Trout Population Estimate ..........................................40 Burbot Monitoring Below Libby Dam ...................................................................41 Burbot Monitoring Libby Reservoir ......................................................................43 Stream Macroinvertebrate Monitoring..................................................................45 6
Juvenile Salmonid Population Estimates...............................................................47 Libby Reservoir Gillnet Monitoring ......................................................................49 Libby Reservoir Zooplankton Monitoring .............................................................51 Results................................................................................................................................52 Bull Trout Redd Counts .........................................................................................52 Kootenai River Adult Bull Trout Population Estimate ..........................................61 Burbot Monitoring Below Libby Dam ...................................................................62 Burbot Monitoring Libby Reservoir ......................................................................63 Stream Macroinvertebrate Monitoring..................................................................73 Juvenile Salmonid Population Estimates...............................................................80 Libby Reservoir Gillnet Monitoring ......................................................................91 Libby Reservoir Zooplankton Monitoring ...........................................................105 Discussion........................................................................................................................110 References........................................................................................................................116 Chapter 2 ...................................................................................................................................120 Stream Restoration and Mitigation Projects in the Montana Portion of the Kootenai River Basin .................................................................................................120 Abstract............................................................................................................................120 Introduction......................................................................................................................121 Methods and Results........................................................................................................124 Eureka Pond.........................................................................................................124 Libby Creek Upper Cleveland Project.................................................................125 Grave Creek Phase I Restoration Project ...........................................................134 Young Creek State Lands Restoration Project ....................................................139 Discussion........................................................................................................................144 References........................................................................................................................146 Appendix......................................................................................................................................148 7
Page 1 and 2: Mitigation for the Construction and
Page 3 and 4: MITIGATION FOR THE CONSTRUCTION AND
Page 5 and 6: depth of burbot that were relocated
Page 7: ACKNOWLEDGEMENTS We are thankful to
Page 11 and 12: deviation from reference conditions
Page 13 and 14: Figure 46. Minimal detectible diffe
Page 15 and 16: Chapter 2 Tables Table 1. Design sp
Page 17 and 18: INTRODUCTION Libby Reservoir was cr
Page 19 and 20: PROJECT HISTORY Montana Fish, Wildl
Page 21 and 22: 2002 - Montana FWP collaborated wit
Page 23 and 24: DESCRIPTION OF STUDY AREA Subbasin
Page 25 and 26: Table 1. Current relative abundance
Page 27 and 28: Similar impacts have been observed
Page 29 and 30: 2460 2440 2420 2400 2380 2360 2340
Page 31 and 32: construction and operation of Libby
Page 33 and 34: Chapter 1 Physical and Biological M
Page 35 and 36: Biological monitoring data was prov
Page 37 and 38: Figure 1. An aerial photograph of L
Page 39 and 40: antenna located approximately 5 cm
Page 41 and 42: We compared samples collected in Se
Page 43 and 44: extends downstream 131 m. This sect
Page 45 and 46: and reduced again to 28 ganged floa
Page 47 and 48: Results Bull Trout Redd Counts Grav
Page 49 and 50: Table 1. Bull trout redd survey sum
Page 51 and 52: Quartz Creek Bull trout redd counts
Page 53 and 54: Bull Trout Redds 40 35 30 25 20 15
Page 55 and 56: Keeler Creek Bull trout that spawn
Page 57 and 58: Burbot Monitoring Below Libby Dam T
Page 59 and 60:
Table 2. Summary information for th
Page 61 and 62:
7000 6000 5000 Y = 45.246e 0.0055x
Page 63 and 64:
The Libby FWP Mitigation Staff surg
Page 65 and 66:
Table 2. (Continued) Capture locati
Page 67 and 68:
Figure 18. Capture locations for a
Page 69 and 70:
Table 4. T-test results. This table
Page 71 and 72:
Figure 19. Montana Mountain Metrics
Page 73 and 74:
Table 5. T-test results. This table
Page 75 and 76:
Juvenile Salmonid Population Estima
Page 77 and 78:
Grave Creek Juvenile salmonid monit
Page 79 and 80:
Number Fish per 1000 Feet 100 80 60
Page 81 and 82:
Libby Creek Section 1 of Libby Cree
Page 83 and 84:
Figure 28. Rainbow trout, brook tro
Page 85 and 86:
Pipe Creek Juvenile rainbow trout w
Page 87 and 88:
Table 6. Average length and weight
Page 89 and 90:
Catch per Net A. Mountain Whitefish
Page 91 and 92:
Table 8. Kamloops rainbow trout cap
Page 93 and 94:
25000.0 20000.0 15000.0 10000.0 500
Page 95 and 96:
Burbot per Trap Day 3 2.5 2 1.5 1 0
Page 97 and 98:
Table 9. Average catch per net for
Page 99 and 100:
Table 11. Percent composition of ma
Page 101 and 102:
deviation = 0.052; Figure 43), with
Page 103 and 104:
Table 12. Individual probability va
Page 105 and 106:
Discussion Long-term monitoring of
Page 107 and 108:
We believe that Libby Reservoir dur
Page 109 and 110:
Figure 47. Minimal detectible diffe
Page 111 and 112:
References Bahls, L., R. Bukantis,
Page 113 and 114:
trout status report (below Kootenai
Page 115 and 116:
Chapter 2 Stream Restoration and Mi
Page 117 and 118:
food sources, as evidenced by the l
Page 119 and 120:
Methods and Results Eureka Pond The
Page 121 and 122:
spacing was 172.8 feet, which repre
Page 123 and 124:
Figure 2. Vicinity Map for Upper Li
Page 125 and 126:
Table 1. Design specifications for
Page 127 and 128:
70 60 50 40 30 20 10 0 500 1000 150
Page 129 and 130:
Grave Creek Phase I Restoration Pro
Page 131 and 132:
Table 4. Design specifications for
Page 133 and 134:
190.0 185.0 180.0 175.0 170.0 165.0
Page 135 and 136:
educed the mean width and width to
Page 137 and 138:
Table 7. Mean cross sectional area,
Page 139 and 140:
Discussion The Grave Creek Phase I
Page 141 and 142:
References Chisholm, I.M., M.E. Hen
Page 143 and 144:
Appendix 148
Page 145 and 146:
Table A2. Lower Grave Creek Demonst
Page 147 and 148:
Table A4. Libby Creek depletion pop
Page 149 and 150:
Table A7. Mean zooplankton densitie
Page 151 and 152:
Table A9. Mean zooplankton densitie
Page 153:
Table A13. Yearly mean total zoopla
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Mitigation for the Construction and Operation of Libby Dam

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