cast the scare cord about 120 feet deep and Ijy dragging it over the 
bottom drove the tai into the net which was cast in a circle by the boats. 
The fish were then driven into the pocket and caught. 
Other ypeclcs . Flounder and other flat fish were 
caught by gill nets, the Japanese trawl, hand trawl and trawl lines. 
Squid were caught by lines to which special gigs in the shape of false 
bait were attached. This fishing was done at night, at first catching 
squid in quite deep water but as the evening advances and the lights 
brighten catching them closer to the surface. Sharks , abundant along the 
Japanese coast, were taken by gill nets and trawl lines. Crabs were taken 
by gill nets cast 8-12 miles from shore and also "by trawl lines. 
Lobsters were taken chiefly by gill nets, but the Japanese trawl and 
hand trawls were used for shrimps and prawns . The gill net used for the 
spiny lobster consisting of three sections (each about 60 feet long and 
25 feet deep with four inch mesh) fastened together was cast by a boat 
manned by 2 - 3 fishermen in the evening and hauled the following morning. 
Abalone which cling to rocks at depths of 12 to 120 feet were taken by 
"lancing" them from the rock by means of a long spade or by a small iron 
implement used by divers. Seaweed was gathered by various dragged hooks. 
Aquiculture . 
General . About 120,000 metric tons of edible fish and 
shellfish, 35,000 metric tons of seaweed and smaller amounts of other 
products (goldfish, pearls and pearl shell) were produced annually in the 
immediate prewar period by aquiculture, an occupation in which more than 
150,000 persons were engaged either part or full time from 1934 through 
- 70 - 
tfi-03l P94 Bu 
