TABLE 4 - CATCH PER GROSS TON OF SKIPJACK VESSEL 

 (metric tons) 



a/ Does not include all vessels in nneratlon 



SoiRCEi Sutlatlcal Tear Hook of Agriculture an-i Forestry (Norln Tok9l> 191.0 



TABLE 5. - TUNA FLEET OPERATED DURING 1940 



a/ Boati u3lnp lonp 3 inn riahlnp- technique 



B/ Boats taklrie fish at the snirface by pole snri line 



T/ Practice both types of fJshtng dfipwndlng or peak aeas'in 



6/ Long llns fishing 



•B/ GVlpJack flchlng 



SOURCE: Bureau of Flsherlos, Ministry of Agriculture and Forestry. 



vessels are not required to register with the Bureau of Fiebftrles, 

 b/ S«»e Tahle 5 for classification of veasela 



a/ Skipjack fishing 



SOIiaCF: Data compiled by Japanese Tuna Fishermen's Assd 



TABLE 7 -CONSTRUCTION OF LONG LINE GEAR O/, AREA OF OPERATION. SEASON, AND SPECIES TAKEN 



BY VARIOUS J^ANESE TUNA VESSELS 



b/ Distance between two flag buoys. In water the main line occupies a distance 

 about 70 percent of Its stretched length. Therefore, hooks In center of set 

 50 or bet^en two buoys reach greater depth than given total distance frai sur- 

 face to hook (final coIimdh). 



£/ Branch lines of different lengths are generally 



placed on one set. 

 d/ Wire or hemp twine covered by a sheath of cotton 



twine 

 SOURCE: Data sutoitted by S. Takayajna of -Tokyo Central 

 Flaherl'^s Experimental Station 



p-6307 



