quantity production in the fisheries^, but even so one cannot go along 

 indefinitely with the argument that the cost price of fish cannot be 

 calculated. No, from this angle the fishing business needs to be made 

 more scientific. Kven in the fishing business, if data are assiduously 

 gathered and the figures are calmly calculated, it is probably not 

 impossible at present to calculate the cost price. The following is my 

 attempt to calculate the cost price by figuring income and outgo in the 

 tuna fishery. 



Basic Data and Bases for Calculation 



I gathered the data shown in table 1 from 14 tuna long-line vessels 

 which came into port at Tokyo, Yokohama, and Misaki during one month 

 beginning December 6, 1947. The total number of tuna boats at present 

 is 760, and it cannot be affirmed without question that a sample of data 

 from 14 boats is adequate, however, these have been considered representa- 

 tive enough to serve as basic data. 



The following basis for calculation has been established from the 

 averages of these 14 boats t 



Vessel - 135 tons, 250 horsepower, Diesel, standard-type steel boat. 



Fishing gear - 350 baskets of long lineso 



Crew - 28.3 men. 



Time required for 1 cruise - 12 days preparation, 15 days run to 

 and from the fishing ground^ 22.5 days fishing; a total of 

 49.5 days. Prorated annual repairs (once a year for 60 days), 

 10 days per cruise bringing the total to 59c 5 days for each 

 of 6 cruises per year. (In addition, 8 days per year must 

 be allowed for painting the bottom of the boat, ) 



Amount and value of catch - for one cruise 69,088 Ibso, $2,519, 



- for 6 cruises 414,526 lbs., $15,114. 



Calculations were made on this basis,, prices being the ceiling 

 prices (in effect beginning December 26, 1947), Two separate calcula- 

 tions have been made for purposes of comparison, one, designated (A), 

 on the assumption that all materials required could be obtained at 

 oeiling prices, emd (B) based on what could actually be obtained at 

 the time. 



16 



