7824

• UCREFRP Catalog Number: 7824
• Author: Miller, W. H., et al.
• Title: Colorado River Fishery Project, Part III, Final Report, Contracted Studies.
• USFW Year: 1982.
• USFW - Doc Type: \
• Copyright Material: NO

CONTENTS, Continued
•
4. Disease Survey of the Colorado River Fishes
Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Results . . . . . . 177
Pathogens of endangered fishes 177
Pathogens of exotic and other endemic fishes . . . . . . . . . 177
Health status of endemic fishes . . . . . . . . . . . . . . . 178
Impact of exotic species disease agents on endemic species . . 180
Intensive or extensive culture of endangered fishes . . . . . . 180
References cited . . . . . . . . . . . . . . . . . . . . . . . . . 180
Appendix A - Pathogens recovered from endangered fish species . . 181
Pathogens recovered from other fish species . . . . . 182
Appendix B - Pathogens recovered from individual fish . . . . . . 183
5. Tolerance and Preferences of Colorado River
Endangered Fishes to Selected Habitat Parameters
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Fish history . . . . . . . . . . . . . . . . . . . . . . . . . 185
-Temperature preference . . . . . . . . . . . . . . . . . . 187
• -Egg temperature tolerance . . . . . . . . . . . . . . . . . . . 190
Total dissolved solids preference 190
Baseline hematology and stress . . . . . . . . . . . . . . . . 191
Swimming ability . . . . . . . . . . . . . . . . . . . . . . . 194
Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
• Temperature preference . . . . . . . . . . . . . . . . . . . . 194
-Egg temperature tolerance . . . . . . . . . . . . . . . . . . . 210
Total dissolved solids preference . . . . . . . . . . . . . . . 211
Hematology . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Swimming ability . . . . . . . . . . . . . . . . . . . . . . 224
References cited . . . . . . . . . . . . . . . . . . . . . . . . . 236
6. Colorado River Fisheries Project
Acute Toxicity of Selected Chemicals: Data Base
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Toxicants . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Fish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Static acute toxicity tests . . . . . . . . . . . . . . . . . . 244
Data analysis . . . . . . . . . . . . . . . . . . . . . . . . . 246
Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 253
• References cited . . . . . . . . . . . . . . . . . . . . . . . . . 253
Key to abbreviations . . . . . . . . . . 254
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