presumed movement of black marlin from the Indian 

 Ocean to the Atlantic Ocean. The black marlin, 

 thus, is obviously a species of both tropical and 

 temperate waters. Good fishing grounds are located 

 in the East China Sea, Arafura Sea, Sulu Sea, 

 Celebes Sea, Coral Sea, Formosa, northwestern 

 Australia, Ecuador, and Pinas Bay in Panama (Fig. 

 8). The distributional limits are about lat. 40°N in the 

 North Pacific and lat. 45°S in the South Pacific and 

 Indian Oceans. 



ACKNOWLEDGMENTS 



I wish to acknowledge Drs. Shoji Ueyanagi and 

 Shoji Kikawa of Far Seas Fisheries Research 

 Laboratory for their advice and for providing catch 

 and effort data from the Japanese tuna longline 

 fishery. I am also indebted to Susumu Kato of Na- 

 tional Marine Fisheries Service, Tiburon Fisheries 

 Laboratory, for his help and review of the manu- 

 script. 



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