CONTENTS 



List of Figures ii 



List of Tables iii 



Acknowledgements iv 



Summary 1 



Introduction 3 



Study Area '. . . . 5 



Methods 8 



Placement of Fry Traps 8 



Electrof ishing 8 



Stomach Content Analysis 9 



Core Sampling 11 



Physical Measurements 12 



Results And Discussion 13 



Growth Of Young-Of-The-Year Fishes 13 



Stomach Content Analysis 16 



Substrate Composition Of Spawning Sites 21 



Use Of Irrigation Ditches 24 



Relative Abundance 26 



YOY Movement 28 



Conclusions 30 



Literature Cited 31 



