Tuna Canning . A part of the tuna catch is canned; some estimates 
place it as high as a quarter of the catch but others place it at about 
10 percent. In 1937 the canned production was 660,000 cases and in 193$ 
378,000 cases (Table 46); similar fluctuations occurred in the period 
1932 - 1936 and prior to 1932 production was very small. 
Tuna canning districts were mainly in Shizuoka, Miyagi, Kana- 
gawa and Chiba prefectures. This is indicated by Table 50 showing the 
location of the 29 canneries operating in a recent year. 70/ The plants 
were in districts facing the Pacific — conveniently situated near the 
tuna fishing grounds. At least one of the largest tuna factories was 
in the city of Shimizu. 71/ 
TAHLE 50 
Tuna Canneries in Japan */ 
Number of Canneries 
Shizuoka 
Miyagi 
Kanagawa 
Chiba 
Ibaraki 
Tokyo 
Fukushima 
14 
5 
4 
3 
1 
1 
JL 
29 
a/ In addition one cannery was operating in Formosa. 
70/ Either 1937 or 1938. 
71/ This plant has been reported to be producing during the war 
period exclusively for the Army. 
- 137 - 
16-031 P162 bu 
