IDAHO DEPARTMENT OF FISH AND GAME FISHERY MANAGEMENT ANNUAL REPORT Cal Groen, Director UPPER SNAKE REGION 2009 Brett High Regional Fisheries Biologist Greg Schoby Regional Fisheries Biologist Damon Keen Regional Fisheries Biologist Dan Garren Regional Fisheries Manager March 2011 IDFG 11-107 1 2009 Upper Snake Region Annual Fishery Management Report TABLE OF CONTENTS Page Lakes and Reservoirs Investigations HENRYS LAKE ABSTRACT ................................................................................................................................ 1 METHODS ................................................................................................................................. 2 Population Monitoring ............................................................................................................. 2 Creel Survey ........................................................................................................................... 3 Water Quality .......................................................................................................................... 4 Spawning Operation ............................................................................................................... 4 Riparian Fencing and Fish Screening ..................................................................................... 4 RESULTS .................................................................................................................................. 5 Population Monitoring ............................................................................................................. 5 Creel Survey ........................................................................................................................... 5 Water Quality .......................................................................................................................... 6 Spawning Operation ............................................................................................................... 6 Riparian Fencing and Fish Screening ..................................................................................... 6 DISCUSSION ............................................................................................................................. 7 MANAGEMENT RECOMMENDATIONS ................................................................................... 8 Tables ................................................................................................................................ 9 Figures ............................................................................................................................. 12 RIRIE RESERVOIR ABSTRACT .............................................................................................................................. 19 METHODS ............................................................................................................................... 20 RESULTS ................................................................................................................................ 20 DISCUSSION ........................................................................................................................... 21 MANAGEMENT RECOMMENDATIONS ................................................................................. 22 Tables .............................................................................................................................. 23 Figures ............................................................................................................................. 24 ZOOPLANKTON MONITORING ABSTRACT .............................................................................................................................. 27 INTRODUCTION ..................................................................................................................... 28 METHODS ............................................................................................................................... 28 RESULTS AND DISCUSSION ................................................................................................ 28 Tables .............................................................................................................................. 30 Figures ............................................................................................................................. 31 PASSIVE INTEGRATED TRANSPONDER TAG RETENTION STUDY ABSTRACT .............................................................................................................................. 33 INTRODUCTION AND METHODS .......................................................................................... 34 RESULTS ................................................................................................................................ 34 i TABLE OF CONTENTS (cont.) Page DISCUSSION ........................................................................................................................... 34 Figures ............................................................................................................................. 36 Rivers and Streams Investigations STREAM RENOVATION – CROOKED AND MEYERS CREEKS ABSTRACT .............................................................................................................................. 37 INTRODUCTION ..................................................................................................................... 38 METHODS ............................................................................................................................... 38 RESULTS AND DISCUSSION ................................................................................................ 39 Table ................................................................................................................................ 41 Figures ............................................................................................................................. 42 BIG LOST RIVER ABSTRACT .............................................................................................................................. 45 INTRODUCTION ..................................................................................................................... 46 METHODS ............................................................................................................................... 46 RESULTS ................................................................................................................................ 47 DISCUSSION ........................................................................................................................... 48 Figures ............................................................................................................................. 49 HENRYS FORK ABSTRACT .............................................................................................................................. 52 METHODS ............................................................................................................................... 53 RESULTS ................................................................................................................................ 54 Box Canyon .......................................................................................................................... 54 Vernon to Chester Backwaters ............................................................................................. 54 Chester Dam to Fun Farm Bridge Backwaters ..................................................................... 54 St. Anthony Railroad Bridge to Parker-Salem Bridge ........................................................... 55 DISCUSSION ........................................................................................................................... 55 MANAGEMENT RECOMMENDATIONS ................................................................................. 56 Tables .............................................................................................................................. 58 Figures ............................................................................................................................. 59 TETON RIVER ABSTRACT .............................................................................................................................. 72 INTRODUCTION ..................................................................................................................... 73 OBJECTIVES ........................................................................................................................... 74 METHODS ............................................................................................................................... 74 RESULTS ................................................................................................................................ 75 DISCUSSION ........................................................................................................................... 75 ACKNOWLEDGEMENTS ........................................................................................................ 77 Figures ............................................................................................................................. 78 ii TABLE OF CONTENTS (CONT.) SOUTH FORK SNAKE RIVER ..........