334 



Fishery Bulletin 98(2) 



able that fishery exploitation could still have affected 

 the growth and survival relationship. Changes in 

 nearshore predation or conditions (both environmen- 

 tal and biological) after the fish had moved offshore 

 could also have been the cause. Although we noted 

 no unusually high concentrations of piscivorous sea 

 birds or marine mammals in the Auke Bay area in 

 the spring of 1987 , that observation does not preclude 

 the possibility that larger than normal populations 

 of predators may have caused significant mortality 

 on the juveniles beyond our study area of Auke Bay. 

 Identification of the elements causing such anom- 

 alous years would provide insight into how these 

 factors interact with growth conditions to drive inter- 

 annual variation. 



Acknowledgments 



We thank our colleagues at the Auke Bay Laboratory 

 who participated in this project. We are particularly 

 indebted to Joe Orsi, Adrian Celewycz, Molly Stur- 

 devant, Herbert Jaenicke, and Judy Lum. Without 

 their unfailing dedication, expertise, and excellent 

 attitudes this project would not have been as success- 

 ful or enjoyable. Additionally, we extend our apprecia- 

 tion to Mark Carls, Jon Heifetz, and John Joyce who 

 provided in-house reviews of this manuscript. 



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