TABLE 21. --Catch per \init of Gxilf shrimp trawl effort by depth for 

 Pandalus borealis in the Shumagin Islands - 

 Alaska Peninsula area, 1957 



TABLE 22. —Catch per unit of Gulf shrimp trawl effort by depth for 

 Pandalus hypsinotus taken in Shumagin Islands - 

 Alaska Peninsula area, 1957 



21 



