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REVIEW OF CERTAIN MAJOR FISHERIES 



PACIFIC TUNA FISHERY, 1975 



Domestic landings of tuna at Pacific Coast and Hawaii ports were 387.6 million pounds worth 

 $105.1 million, decreases of 2.2 million pounds and $13.2 million compared with 1974. Landings of albacore 

 tuna (49.0 million pounds) ueelined 11 percent and yeUowfin (242.0 million pounds) declined 5 percent. 

 Landings of bluefin tuna (16.4 million pounds) increased 41 percent and skipjack tuna (79.5 million pounds) 

 increased 16 percent. 



The Inter-American Tropical Tuna Commission (lATTC) set an international quota for the 

 yeUowfin tuna fishery in the regulatory area of the eastern Pacific Ocean for 1975 of 175,000 short tons with 

 allowances for the increments of 10,000 tons each should data from the fishery warrant such increases. In 

 1975 the season on yeUowfin opened on January 1. The quota was easily reached, and the season was closed 

 March 27. During the closed season the lATTC allowed small vessels (400 tons carrying capacity, all member 

 nations) to catch 6,000 tons of yeUowfin. The commission also granted permission to one member nation to 

 catch an additional 10,000 tons of yeUowfin during the closed season. 



Purse seines, the principal gear used in taking yeUowfin, skipjack, and bluefin accounted for 81 

 percent of the landings. Hand and troU lines, "used mainly in taking albacore, accounted for almost all the 

 rest. Gill nets and other unspecified gears took a negligible quantity. 



SUMMARY OF PACIFIC TUNA OPERATING UNITS, 1975 



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