UNITED STATES DEPARTMENT OF THE INTERIOR 



FISH AND WILDLIFE SERVICE 

 BUREAU OF COMMERCIAL FISHERIES 



BUREAU OF COMMERCIAL FISHERIES 

 FISHERY- OCEANOGRAPHY CENTER 



LA JOLLA, CALIFORNIA 

 FISCAL YEAR 1968 



ALAN R. LONGHURST, LABORATORY DIRECTOR 



Circular 303 



WASHINGTON, D. C. 

 September 1968 



