UNITED STATES DEPARTMENT OF THE INTERIOR 



Walter J. Hickel, Secretary 



Fred J. Russell, Under Secretary 



Leslie L. Glasgow, Assistant Secretary 



for Fish and Wildlife and Parks 



U.S. FISH AND WILDLIFE SERVICE 



Charles H. Meacham, Commissioner 



BUREAU OF COMMERCIAL FISHERIES 

 Philip M. Roedel, Director 



Apparent Abundance, Distribution, and Migrations of 



Albacore, Thunnus alalunqa , on the 



North Pacific Longline Grounds 



By 



BRIAN J, ROTHSCHILD and MARIAN Y. Y. YONG 



United States Fish and Wildlife Service 

 Special Scientific Report--Fisheries No. 623 



Washington, D. C. 

 September 1970 



