FISHERY BULLETIN: VOL. 85, NO. 3 



and David Blackbourn for valuable discussions. 

 We also thank the following individuals for 

 providing data used in this paper: Brian Riddell 

 (North Coast Tagging), Fred Wong (West Coast 

 Troll) and Colin Harris (updated information on 

 INPFC tagging). Sherry Greenham and Laurie 

 Mackie drew the figures. During the later stages 

 of this study, T. P. Quinn was supported by 

 NSERC Strategic Grant, G-1485. 



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