SNAKE RIVER SOCKEYE SALMON CAPTIVE BROODSTOCK ...¢  Estimated angler effort for the 2005 fishing season

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  • SNAKE RIVER SOCKEYE SALMON CAPTIVE BROODSTOCK PROGRAM

    RESEARCH ELEMENT

    ANNUAL PROGRESS REPORT January 1, 2005—December 31, 2005

    Prepared by:

    Kurtis Plaster, Senior Fisheries Technician Mike Peterson, Fisheries Research Biologist

    Dan Baker, Hatchery Manager II Jeff Heindel, Assistant Hatchery Manager

    Jeremy Redding, Fish Culturist Catherine Willard, Senior Fisheries Research Biologist

    and Paul Kline, Principal Fisheries Research Biologist

    IDFG Report Number 06-36

    March 2006

  • SNAKE RIVER SOCKEYE SALMON CAPTIVE BROODSTOCK PROGRAM RESEARCH ELEMENT

    2005 Annual Project Progress Report

    Part 1—Project Overview Part 2—Oncorhynchus nerka Population Monitoring Part 3—Redfish and Stanley Lakes Sport Fishery Investigations Part 4—Sockeye Salmon Smolt Monitoring and Evaluation Part 5—Sockeye Salmon Spawning Investigations and Unmarked

    Juvenile Out-migrant Monitoring Part 6—Parental Lineage Investigations Part 7—Proximate Analysis for Juvenile Fish Quality Assessment Part 8—Predator Surveys

    By

    Kurtis Plaster Mike Peterson

    Dan Baker Jeff Heindel

    Jeremy Redding Catherine Willard

    Paul Kline

    Idaho Department of Fish and Game 600 South Walnut Street

    P.O. Box 25 Boise, Idaho 83707

    To:

    U.S. Department of Energy Bonneville Power Administration

    Division of Fish and Wildlife P.O. Box 3621

    Portland, OR 97283-3621

    Project Number 1991-07-200 Contract Number 5342

    IDFG Report Number 06-36

    March 2006

  • i

    TABLE OF CONTENTS Page

    EXECUTIVE SUMMARY ..............................................................................................................1 PART 1—PROJECT OVERVIEW................................................................................................. 3 BACKGROUND ............................................................................................................................ 3 CAPTIVE PROPAGATION ........................................................................................................... 4 SNAKE RIVER SOCKEYE SALMON CAPTIVE BROODSTOCK PROGRAM............................. 5 PROJECT GOALS........................................................................................................................ 6 PROJECT OBJECTIVES.............................................................................................................. 6 STUDY AREA ............................................................................................................................... 7

    2004 and 2005 Captive Broodstock Program Egg and Juvenile Supplementation ................... 7 LITERATURE CITED.................................................................................................................. 13 PART 2—ONCORHYNCHUS NERKA POPULATION MONITORING....................................... 18 INTRODUCTION ........................................................................................................................ 18 METHODS .................................................................................................................................. 18 RESULTS ................................................................................................................................... 19

    Redfish Lake ........................................................................................................................... 19 Alturas Lake ............................................................................................................................ 19 Pettit Lake ............................................................................................................................... 19

    DISCUSSION.............................................................................................................................. 20 Redfish Lake ........................................................................................................................... 20 Alturas Lake ............................................................................................................................ 20 Pettit Lake ............................................................................................................................... 21

    RECOMMENDATIONS............................................................................................................... 22 LITERATURE CITED.................................................................................................................. 27 PART 3—REDFISH AND STANLEY LAKE SPORT FISHERY INVESTIGATIONS................... 28 INTRODUCTION ........................................................................................................................ 28 METHODS .................................................................................................................................. 28

    Redfish Lake ........................................................................................................................... 28 Stanley Lake............................................................................................................................ 28

    RESULTS ................................................................................................................................... 29 Redfish Lake ........................................................................................................................... 29 Stanley Lake............................................................................................................................ 29

    DISCUSSION.............................................................................................................................. 30 Redfish Lake ........................................................................................................................... 30 Stanley Lake............................................................................................................................ 30

    RECOMMENDATIONS............................................................................................................... 31 LITERATURE CITED.................................................................................................................. 34 PART 4—SOCKEYE SALMON SMOLT MONITORING AND EVALUATION ............................ 35 INTRODUCTION ........................................................................................................................ 35

  • ii

    Table of Contents, continued. Page

    METHODS .................................................................................................................................. 35

    Redfish Lake Creek Trap ........................................................................................................35 Alturas Lake Creek Trap ......................................................................................................... 36 Pettit Lake Creek Trap ............................................................................................................ 36 Salmon River Smolt Group...................................................................................................... 36 Mainstem Snake and Columbia River Dams........................................................................... 37

    RESULTS ................................................................................................................................... 37 Redfish Lake Creek Trap ........................................................................................................37 Alturas Lake Creek Trap ......................................................................................................... 38 Pettit Lake Creek Trap ............................................................................................................ 38 Salmon River Smolt Group...................................................................................................... 39 Redfish Lake Creek Smolt Group............................................................................................ 39 Mainstem Snake and Columbia River Dams........................................................................... 39

    DISCUSSION.............................................................................................................................. 40 Redfish, Alturas, and Pettit Lake Creek Traps ........................................................................ 40 Mainstem Snake and Columbia River Dams........................................................................... 40

    LITERATURE CITED.................................................................................................................. 51 PART 5—SOCKEYE SALMON SPAWNING INVESTIGATIONS AND UNMARKED

    JUVENILE OUT-MIGRANT MONITORING ........................................................................... 53 INTRODUCTION ........................................................................................................................ 53 METHODS .................................................................................................................................. 53

    Sockeye Salmon Spawning Investigations.............................................................................. 53 Unmarked Juvenile Out-migrant Monitoring ............................................................................ 54

    RESULTS AND DISCUSSION .........