﻿326 
  

  

  GREAT 
  LAKES 
  FISHERIES 
  

  

  LAKE 
  SUPERIOR 
  

  

  OPERATING 
  UNITS 
  AND 
  FISHING 
  EFFORT 
  

   BY 
  GEAR, 
  1970 
  

  

  SEE 
  NOTE 
  ON 
  PAGE 
  309. 
  

  

  