TABLE OF CONTENTS 



Page 



Introduction 1 



I. Types of fisheries and their general description ^ 



A. Net fisheries 3 



1. Stationary net fisheries 3 



2. Drift-net fishery 4 



3. Round haul net fisheries 6 



B. Hook and line fisheries 7 



1. Trolling 8 



2. Pole and line fisheries 8 



3. Drift line ( nagashiyoma) fishery 9 



4. Longline fishery 10 



C. Harpoon fishery 21 



II. Characteristics of the tuna longline fishery 22 



III. General outline of fishing grounds and fishing seasons 26 



IV. Fishes taken by tuna longline fishery. . , 31 



A. Tunas 32 



1. Black tuna, Thunnus orientalis (Schlegel) 32 



2. Albacore, Germo germo (Lacepede) 33 



3. Bigeye tuna, Parathunnus sibi (Temminck and Schlegel) = 



Parathunnus mebachi (Kishinouye) 33 



4. Yellowfin tuna, Neothunnus macropterus (Temminck and 



Schlegel) 34 



5. Koshinaga, Kishinoella rara (Kishinouye) 34 



B. Spearfishes 35 



1. Shortnosed spearfish, Tetrapturus angustirostris (Tanaka) 35 



2. Sailfish, Istiophorus orientalis (Temminck and Schlegel) 36 



3. Striped marlin, Makaira mitsukurii (Jordan and Snyder) 36 



4. White marlin, Makaira marlina (Jordan and Hubbs) 37 



