FISHERY BULLETIN: VOL. 83. NO. 3 



In summary', we suggest that seasonal changes in 

 the availability' of food are rather important in the 

 life histories of rockfish. The summer storage and 

 winter use of fat reserves, in near synchrony with 

 growth and decline of gonad volume, indicate a 

 wintertime paucity of food that is compensated by 

 the use of material that was stored at the expense of 

 fecundity or growth. Further study of seasonal 

 feeding, fat deposition, and reproductive cycles, 

 categorized by size and sex, would be useful in 

 evaluating this hypothesis. Further, geographical 

 comparisons of these cycles may illuminate some 

 causes of differences in the life histories of 

 rockfishes. 



ACKNOWLEDGMENTS 



For their assistance during the course of the study, 

 we thank Tina Echeverria, Pete Adams, Connie 

 Ryan, Nancy Wiley, and many other employees of 

 NMFS and the California Department of Fish and 

 Game. Pete Adams, Tom Niesen, and George Boeh- 

 lert suggested improvements in the manuscript. 

 Diane Fenster drafted the figures. This paper is 

 derived from the senior author's Master's thesis at 

 San Francisco State University. The work took place 

 at the Southwest Fisheries Center Tiburon Labora- 

 tory, National Marine Fisheries Service, CA, under a 

 NMFS student appointment. 



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