FISHERY BULLETIN: VOL. 75, NO. 2 



ban on fishing. Once the stocks approach their 

 former levels of abundance, the harvest from both 

 the QCS and WVI stocks should be regulated so 

 that the catch does not exceed 0.1/3, where /3 is the 

 estimated stock biomass. 



ACKNOWLEDGMENTS 



This study was conducted in cooperation with 

 NOAA, National Marine Fisheries Service, under 

 Grant-in-Aid Project No. 1-75-R. I am grateful to 

 several members of the Washington Department 

 of Fisheries who helped with the collection and 

 processing of the data employed, notably Mark 

 Pedersen, James Beam, Wayne Gormely, Ruth 

 Mandapat, Sandra Oxford, and Dan Kimura. 



Discussions with S. B. Mathews (University of 

 Washington) and S. J. Westrheim (Fisheries Re- 

 search Board of Canada) were particularly helpful 

 throughout the study and I thank both of them for 

 reviewing the manuscript. 



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