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Salmonid Disease Studies Federal Aid Project F-394R-10

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Salmonid Disease Studies Federal Aid Project F-394R-10 Salmonid Disease Studies Federal Aid Project F-394R-10 George J. Schisler Principal Investigator and Eric R. Fetherman Brad Neuschwanger Rick Cables, Director Federal Aid in Fish and Wildlife Restoration FINAL Progress Report Colorado Division of Wildlife Aquatic Wildlife Research Section Fort Collins, Colorado July 2011 STATE OF COLORADO John W. Hickenlooper, Governor COLORADO DEPARTMENT OF NATURAL RESOURCES Mike King, Executive Director COLORADO DIVISION OF WILDLIFE Rick Cables, Director WILDLIFE COMMISSION Tim Glenn, Chair Robert G. Streeter, Ph.D., Vice Chair Kenneth M. Smith, Secretary David R. Brougham Dennis G. Buechler Dorothea Farris Allan Jones John W. Singletary Dean Wingfield Ex Officio/Non-Voting Members: Mike King, Department of Natural Resources John Stulp, Department of Agriculture AQUATIC RESEARCH STAFF George J. Schisler, General Professional VI, Aquatic Wildlife Research Leader Rosemary Black, Program Assistant I Stephen Brinkman, General Professional IV, Water Pollution Studies Eric R. Fetherman, General Professions IV, Salmonid Disease Investigations Ryan Fitzpatrick, General Professional IV, Eastern Plains Native Fishes Matt Kondratieff, General Professional IV, Stream Habitat Restoration Jesse M. Lepak, General Professional V, Coldwater Lakes and Reservoirs R. Barry Nehring, General Professional V, Stream Fisheries Investigations Brad Neuschwanger, Hatchery Technician IV, Research Hatchery Kyle Okeson, Technician III, Fish Research Hatchery Christopher Praamsma, Technician III, Fish Research Hatchery Kevin B. Rogers, General Professional IV, Colorado Cutthroat Studies Kevin G. Thompson, General Professional IV, GOCO - Boreal Toad Studies Harry Vermillion, General Professional III, F-239, Aquatic Data Analysis Nicole Vieira, Physical Scientist III, Toxicologist Paula Nichols, Federal Aid Coordinator Kay Knudsen, Librarian i Prepared by: Geor J. Schisler, Aquatic Wildlife Research Leader Eric R. Fetherman, General Professional IV, Aquatic Wildlife Researcher Brad Neuschwanger, Research Hatchery Technician IV Date: The results of the research investigations contained in this report represent work of the authors and may or may not have been implemented as Division of Wildlife policy by the Director or the Wildlife Commission. ii Table of Contents Signature Page .................................................................................................................. ii Title Page ...................................................................................................................1 Job No. 1: Breeding and Maintenance of Whirling Disease Resistant Rainbow Trout Stocks .................................................................................................1 Job Objective: ...........................................................................................1 Hatchery Production ...........................................................................1 Research Projects ................................................................................5 Job No. 2: Whirling Disease Resistance Laboratory Experiments...................................7 Job Objective ............................................................................................7 Hofer-CCR Crosses ............................................................................7 Experiment 1 .................................................................................7 Introduction .............................................................................7 Methods...................................................................................7 Results .....................................................................................8 Discussion ...............................................................................9 References .............................................................................11 Experiment 2 ...............................................................................12 Introduction ...........................................................................12 Methods.................................................................................13 Results ...................................................................................22 Discussion .............................................................................30 Experiment 3 ...............................................................................33 References ...................................................................................38 Hofer-Harrison Lake Crosses ...........................................................41 Resistance Experiment 1 .............................................................45 Methods.................................................................................45 Results ...................................................................................45 Resistance Experiment 2 .............................................................47 Methods.................................................................................47 Results ...................................................................................48 Resistance Experiment 3 .............................................................51 Methods.................................................................................51 Results ...................................................................................51 Job No. 3: Whirling Disease Resistant Domestic Brood Stock Development and Evaluation ...............................................................................................55 Job Objective ..........................................................................................55 Abstract .............................................................................................55 Introduction .......................................................................................55 Methods.............................................................................................57 Results ...............................................................................................59 iii Discussion .........................................................................................61 References .........................................................................................67 Hatchery Performance Evaluations .........................................................69 Field Performance Evaluations: Comparison of GR and Tasmanian strain rainbow trout as catchable plants in two put-and-take waters in Colorado .......................................................74 Introduction .................................................................................74 Methods.......................................................................................74 Results .........................................................................................78 Discussion ...................................................................................89 References ...................................................................................90 Field Performance Evaluations: Parvin Lake Fingerling Stocking Experiments ......................................................................................91 Introduction .................................................................................91 Methods.......................................................................................94 Results .........................................................................................96 Discussion .................................................................................101 Job No. 4: Whirling Disease Resistant Wild Strain Brood Stock Development and Evaluation ............................................................................................102 Job Objective ........................................................................................102 Past Evaluations ....................................................................................102 Upper Colorado River ...........................................................................102 Introduction .....................................................................................102 Conclusions .....................................................................................118 Gunnison River .....................................................................................119 Introduction .....................................................................................119 Conclusions .....................................................................................134 Genetic Techniques ...............................................................................134 Introduction .....................................................................................134 References .......................................................................................139 Job No. 5: Technical Assistance ...................................................................................140 Technical Assistance Projects ...............................................................140 2006-2007 Technical Assistance Milestones ..................................141 2007-2008 Technical Assistance Milestones ..................................141 2008-2009 Technical Assistance Milestones ..................................142 2009-2010 Technical Assistance Milestones ..................................143 2010-2011 Technical
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