toward the spawning rivers which flow into the Okhotsk Sea. About 
60 percent of the salmon from this fishery is reported to have been 
canned in prewar years; the value figures (Table 29) suggest, however, 
that from 1938 on more was salted than canned. The principal crab area 
was along the western shore of Pa ramus hi ro. In 1938 16 vessels and 4 
crab canneries were reported. Cod was caught in fairly deep water off 
the western coast of Pararaushiro and Shimushu from April until September. 
In 1938 2,200 persons were engaged in catching and drying cod in the 
northern Kuriles. 
Fishing in Outlying Colonial Waters . Fishing in 
the waters of Korea, Formosa, Kwantung Leased Territory and the South 
Sea Mandated Islands, independent of operations in these waters by 
locally based fishermen, accounted for 57,600 metric tons in 1936 and 
36,000 tons in 1938 (Table 30). Some of these operations were by 
trawlers and drag-netters, others were by purse seining and those of the 
South Seas and Formosa included bonito and tuna fishing. 
Special Fisheries . 
Seaweed Production . Sea plants attain a remarkable 
importance in the fisheries of Japan. Numerous species were taken for 
widely different uses: some were dried and used as food, others pro¬ 
cessed to yield iodine, potassium or other chemicals, agar-agar, sizing 
materials and fertilizers. The total production of seaweed ranged from 
389 million to 589 million tons in the period 1935 to 1940, and in 1940 
when the production was 589 million tons it was valued at ¥ 39 million 
(Table 31). 
- 103 - 
16-031 P'128 bu 
