Table 1 Tuna longlines used by the most successful fishing boats in each 



prefecture in 1932 (Chiba Prefecture Fisheries ilxperimsnt Station) 



Prefecture 



Hokkaido 

 Aomori' 



kiyagi 



Chiba 



Kanagawa 



Shizuoka 



fcie 



i/v'akayama 



Ehime 



tiiyazaki 



Kochi 



Ogasawara 



Vessel 



Taihei inlaru 

 Pukuei Maru 

 Genei Maru 



Kanan iWaru 



Fusa Maru 

 Kan shir's iiaru 



Toyo Maru 

 Juju Maru 

 Horai Maru 

 Jingu Maru 

 Noo2 i'aisho Maru 



Daikoku Maru 



Iwo i^aru 



Fishing Area 



off Etorofu - 

 off Iwate 



off Acircri- 



Hokkaido 

 off Aomo£i and 

 Hokkaido 



east of Kinkasan = 

 off the Zunan Shoto 



off the Boso area 



300=400 miles east 

 of Choshi 



Fishing Period 



Branch i-me -j- 

 Sekiyama ^ 

 KVire 



August-December 



July-December 

 August-December 



Novembe r-March 



November-March 

 October-April 



off Choshi and Sanriku October-March 



off Chiba Prefecture 



off the Boso area 



off Kagoshima-Aomori 



200-250 miles south 

 of Aburatsu 



31°40'- 132°10' - 

 134°20" 



Ogasawara waters 



November-March 

 September-May 

 October=March 

 December-March 



March-May 



Kovember-lata 

 January 



16 ken* 

 (5 shaku)** 



18 

 17 



18 



10 

 11 



17 

 12 



14o5 



49 

 40 



32 

 11 



* 1 j^n s lo82 metres 

 f* 1 shaku s 30 o3 cm 



