Page 2 

 CONTENTS 



Table of Contents 2 



List of Figures 3 



List of Tables 5 



Acknowledgements 6 



Summary 7 



Introduction 10 



Methods and Materials 10 



Results and Discussion 18 



Distribution and Abundance of Fishes 18 



Growth of Arctic grayling 21 



Habitat Utilization by Young-of-the-Year Arctic grayling 25 



Macrohabitat Utilization 25 



Microhabitat Utilization 30 



Depth and Velocity 30 



Substrate and Cover 47 



Temperature 4 7 



Reliability and Applicability of Microhabitat Measurements 49 



Transferability of Utilization Criteria to Other Streams 50 



Movements of Young-of-the-Year Arctic grayling in Their First Summer 51 



Interactions Between Arctic Grayling and Brook Trout 51 



Literature Cited 56 



