CONTENTS 



Pace 



Int roducf ion 429 



jMethods and materials 431 



Collection and preservation of samples 431 



Egg enumeration 431 



Spawning ground surveys 432 



Results 432 



Age group fecundity 432 



Effect of age group fecundity and sex ratio on egg potential 434 



Discussion 435 



Contribution of 32's to the fishery 435 



Age at maturity — genetic or environmental? 435 



Conclusions 436 



Summary 436 



Literature cited 437 



m 



