TABLE OF CONTENTS 



Page 



List of Tables ii 



List of Figures iv 



Abstract 1 



Introduction 2 



Description of Study Area 4 



Methods 13 



Results and Discussion 19 



Life History and Population Statistics of Sauger 19 



Chronology and Abundance During Spring 19 



Recapture Rate During Spring 31 



Other Sauger Movements 37 



Distribution of Eggs 44 



Distribution of Prolarvae 51 



Distribution of Young-of-Year During Summer and 



Autumn 51 



Distribution of Immature Sauger During Spring 55 



Size and Age Distribution During Autumn 57 



Catch Rates and Relative Abundance During Autumn. .. 51 

 Population statistics of Sauger at Miles City. 



During Autumn 52 



Angler Harvest 63 



Life History and Population Statistics of Walleye 54 



Relative Abundance and Sex Ratios 54 



Recapture Rate and Movement 59 



Spawning Sites 75 



Distribution of Immature Walleye During Spring 80 



Age, Growth and Population Statistics During 



Spring 81 



Catch Rates and Relative Abundance During Autumn... 82 

 Importance of Yellowstone River Spawning to 



Garrison Reservoir 83 



Angler Harvest 84 



Physical Requirements for Sauger and Walleye 



Reproduction 84 



Intake 84 



Spawning Criteria 84 



Predicted Preferred Spawning Flows 89 



Tongue and Powder Rivers 90 



Location, Substrate and Depth 90 



Temperature 92 



Streamf lows 95 



Other Yellowstone River Sites lOO 



Summary jOl 



Literature Cited 105 



Appendix m 



