CONTENTS 



Page 



Sexual dimorphism 59 



Spawning habits 61 



Age and size at maturity 61 



Time of spawning 62 



Duration of spawning period 65 



Place of spawning 66 



Spawning act 68 



Environment and development of eggs and larvae 70 



Efficiency of fertilization 70 



Temperature requirements 71 



Effects of predation 71 



Development of eggs and alevins 72 



Juvenile lake trout of Keuka I^ake 73 



Summary 74 



Acknowledgments 75 



Literature cited 75 



