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Figure 7. — The estimated total fishing effort (number of hooks per unit area) in the Japanese 

 longline fishery during 1970 (from Fisheries Agency of Japan, 1972). 



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Figure 8. — The catch of striped marlin shown as numbers of fish taken per unit area during 

 1970 (from Fisheries Agency of Japan. 1972). 



Figure 9. — The catch of blue marlin shown as numbers offish taken per unit area during 1970 

 (from Fisheries Agency of Japan, 1972). 



