The Uncertain Future of Fraser River Sockeye - Publications du ...

More documents

Recommendations

Info

Contents Chapter 5 Findings........................................................................................................................... 99 Figures The “decline”......................................................................................................................99 The widespread decline in sockeye salmon productivity............................................101 Assessment of the evidence............................................................................................103 Life stage 1: incubation, emergence, and freshwater rearing...................................................103 Incubation........................................................................................................................103 Emergence and freshwater rearing................................................................................105 Life stage 1 findings.........................................................................................................105 Life stage 2: smolt outmigration..................................................................................................106 Life stage 2 findings.........................................................................................................108 Life stage 3: coastal migration.....................................................................................................109 Environmental conditions and food availability..........................................................109 Environmental conditions and food availability findings............................................111 Infectious salmon anemia virus ....................................................................................111 Sea lice.............................................................................................................................112 Salmon farms...................................................................................................................113 Virus, sea lice, and salmon farms findings....................................................................114 Life stage 4: growth to adulthood................................................................................................114 Growth in the North Pacific............................................................................................114 Return to the Fraser River...............................................................................................115 Life stage 4 findings.........................................................................................................116 Life stage 5: return migration......................................................................................................116 Life stage 5 findings.........................................................................................................117 Large spawner abundance..........................................................................................................118 Conclusions on the long-term decline.......................................................................................119 The poor return in 2009................................................................................................................120 Poor return in 2009 findings...........................................................................................122 Fraser River sockeye salmon stocks: current state and long-term projections.......................122 Current state....................................................................................................................122 Long-term projections....................................................................................................122 Figure 2.4.1 Pacific sea lice species (enlarged; scale unknown) ......................................................62 Figure 2.4.2 Seasonal migration of Fraser River sockeye salmon postsmolts after leaving the Strait of Georgia........................................................................................................73 Figure 2.4.3 Annual variation in total Fraser River sockeye productivity, 1952–2011....................87 Figure 2.5.1 Fraser River sockeye adult returns per spawner, 1950s–2009....................................100 Figure 2.5.2 Annual variation in total Fraser River sockeye productivity, 1952–2011 .................100 Figure 2.5.3 Total Fraser River sockeye returns, 1893–2011 ..........................................................101 Figure 2.5.4 Scaled Kalman filter time series for non–Fraser River, BC, sockeye salmon stocks, by brood year.....................................................................................................102 x
Contents Tables Table 2.1.1 Table 2.3.1 Table 2.3.2 Cohen Commission technical reports.............................................................................2 Expert Advisory Panel’s judgment of the relative likelihood that a given hypothesis contributed to the observed spatial and temporal patterns in productivity of Fraser River sockeye populations.........................................................16 Updated PSC report table as a result of 2011 workshop discussions..........................18 Appendices A Terms of Reference...............................................................................................................................129 B Executive summaries and tables of contents of technical reports...................................................139 TR1 Infectious Diseases...................................................................................................139 TR1A Enhancement Facility Diseases ..............................................................................142 TR2 Contaminants...........................................................................................................146 TR3 Freshwater Ecology..................................................................................................152 TR4 Marine Ecology.........................................................................................................157 TR5A Salmon Farms and Sockeye Information ..............................................................164 TR5B Salmon Farms and Sockeye Relationships.............................................................166 TR5C Noakes Salmon Farms Investigation.......................................................................169 TR5D Dill Salmon Farms Investigation.............................................................................171 TR6 Data Synthesis..........................................................................................................174 TR6A Data Synthesis Addendum......................................................................................180 TR7 Fisheries Management.............................................................................................182 TR8 Predation...................................................................................................................186 TR9 Climate Change........................................................................................................189 TR10 Production Dynamics..............................................................................................194 TR12 Lower Fraser Habitat................................................................................................198 Abbreviations and acronyms..........................................................................................................203 Glossary............................................................................................................................................207 Volume 3 Recommendations – Summary – Process Chapter 1 Introduction Chapter 2 Recommendations Chapter 3 Legislative amendments Chapter 4 Executive summary Chapter 5 Commission process Acknowledgements Figures Tables Appendices Abbreviations and acronyms Glossary xi
Page 1 and 2: The Uncertain Future of Fraser Rive
Page 3 and 4: Stu art River River Driftwood River
Page 5: October 29, 2012 To His Excellency
Page 9: The Uncertain Future of Fraser Rive
Page 12 and 13: Contents Harmful algal blooms......
Page 17 and 18: Chapter 1 • Introduction The Comm
Page 19: Chapter 1 • Introduction To give
Page 22 and 23: Cohen Commission of Inquiry into th
Page 29 and 30: Chapter 3 • Other investigations
Page 37 and 38: Chapter 4 • Summary of decline-re
Page 39 and 40: Chapter 4 • Decline-related evide
Page 65 and 66:
Chapter 4 • Decline-related evide
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
some sockeye populations (e.g., Chi
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Chapter 5 • Findings The Terms of
Page 117 and 118:
Figure 1.1.1: Fraser River Sock
Page 119 and 120:
Chapter 5 • Findings that, just b
Page 121 and 122:
Chapter 5 • Findings Emergence an
Page 123 and 124:
Chapter 5 • Findings concentratio
Page 125 and 126:
Chapter 5 • Findings smolts leave
Page 127 and 128:
Chapter 5 • Findings of the overa
Page 129 and 130:
Chapter 5 • Findings “accidenta
Page 131 and 132:
Chapter 5 • Findings phase of the
Page 133 and 134:
Chapter 5 • Findings water temper
Page 135 and 136:
Chapter 5 • Findings saying that
Page 137 and 138:
Chapter 5 • Findings concluded th
Page 139 and 140:
Chapter 5 • Findings One stressor
Page 141:
Chapter 5 • Findings Notes 1 Tran
Page 145 and 146:
Appendix A • Terms of Reference P
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Appendix A • Terms of Reference 1
Page 153 and 154:
Appendix A • Terms of Reference 1
Page 155 and 156:
Appendix B • Executive summaries
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
TR5C - Noakes Salmon Farms Investig
Page 187 and 188:
TR5D - Dill Salmon Farms Investigat
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
TR9 - Climate Change Appendix B •
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Abbreviations and acronyms AAA AARO
Page 221 and 222:
Abbreviations and acronyms IFMP Int
Page 223 and 224:
Glossary Cross-references are given
Page 225 and 226:
Glossary proportion of eggs that we
Page 227 and 228:
Glossary mortality: death of fish,
Page 229 and 230:
Glossary stream walks: method of es
Page 231:
Glossary 150 Exhibit 8, p. 40. 151
Page 234:
River Driftwood River Tak l a L ak
show all

The Uncertain Future of Fraser River Sockeye - Publications du ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?