1990 Grayling Spawning Report 



TABLE OF CONTENTS 



Page 



EXECUTIVE SUMMARY ii 



TABLE OF CONTENTS iv 



LIST OF TABLES vi 



LIST OF FIGURES vii 



ACKNOWLEDGEMENTS viii 



INTRODUCTION 1 



STUDY SITE DESCRIPTION 1 



METHODS 1 



FISH COLLECTION 1 



SPAWNING HABITAT CHARACTERISTICS . . . . " 7 



RESULTS 8 



TIMING OF SPAWNING 8 



SPAWNING RUN CHARACTERISTICS 9 



SPAWNING DISTRIBUTION WITHIN THE DRAINAGE 9 



MOVEMENT ASSESSED USING TAG RETURNS 11 



CHARACTERISTICS OF SPAWNING HABITAT 14 



Visual Characteristics 14 



Measured Characteristics 14 



DISCUSSION 18 



TIMING OF SPAWNING 18 



CHARACTERISTICS OF THE SPAWNING RUN 18 



DISTRIBUTION OF SPAWNING WITHIN THE DRAINAGE 19 



MOVEMENT 19 



Page - iv 



