470 



Fishery Bulletin 88(3), 1990 



100%. It is unclear whether differential growth rates 

 may have resulted from the ingestion of different prey 

 since growth rates were not measured in the present 

 study. However, it remains a possibility since Yokla- 

 vich and Bailey (1989) reported differential growth 

 rates for late larval and early juveniles at three loca- 

 tions in the Gulf of Alaska in 1987. These fish, which 

 ranged from 12.8 to 40.8 mm SL, were collected in the 

 same survey of late-stage larval pollock (Hinckley et 

 al. 1989) as the present study, from 18 June to 15 July 

 1987. While specific collection stations differed be- 

 tween the two studies, Yoklavich and Bailey found that 

 growth rates increased from southwest to northeast 

 along the Alaskan Peninsula. 



Acknowledgments 



I would like to thank Bori 011a for valuable discussions, 

 encouragement, and reviewing early drafts of this 

 manuscript. I would also like to thank Art Kendall for 

 his continued interest in this project, C.B. Miller for 

 his help in identifying copepodids (CI V-C V) of Calan iis 

 sp. and Pseudocalanus sp., and Sarah Hinckley for col- 

 lecting specimens. Thanks also to M.E. Clarke and two 

 anonymous reviewers for their comments. 



This work was supported by the Alaska Fisheries 

 Science Center, National Marine Fisheries Service, 

 NOAA Contracts NA-88-ABH-00005 and NA-89-ABH- 

 00039. 



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