At the same time a sharp lookout must be kept for fish and every effort 

 must be made to discover a school at the earliest possible moment.. 



(C) Finding fish on the grounds 



On arrival at the grounds preparations are made to be ready to fish 

 at any time and all hands strive to sight a school „ 



(1) Investigation of water temperatures 



Efforts are made to discover water temperatures which are known to 

 be suitable at the season and in the area in order to determine the limited 

 extent of the fishing grounds within the broad expanse of the ocean. 



(2) When the grounds being explored have been narrowed down, a feather 

 lure is trolled to ascertain the presence of a school, 



(3) Attention is paid to the movements of sea birds on the grounds^ When 

 a flock is sighted, they are approached and the surface of the sea is 

 scanned for activity., This is because skipjack schools at the surface 

 are generally accompanied by flocks of birds. jVhen a flock of birds 

 flies wildly up and down and to the left and right at the surface of the 

 ocean it means that there is a school of skipjack swimming at the surface. 

 When a flock of birds flies high and slowly it often indicates that there 

 is a school of skipjack below the surface. When the birds sit quietly on 

 the surface it can be judged that the school is sv/imming rather deep. 



The birds are an important aid to the discovery of such skipjack schools, 

 which the fishermen call bird-associated schools / torizuki namura /, 



(/V) Schools associated with various things 



(a) With whales -= Schools which accompany and live in association with 

 sardine whales. First sighting the great body of the whale, the boat 

 gradually approaches to ascertain whether or not there is an accompanying 

 school of skipjack. This is a method of taking advantage of the habits 

 of the schools, 



(b) With sharks -= Skipjack schools also accompany basking sharks. By 

 sighting the shark the school is discovered, and this too is a method of 

 taking advantage of the habits of the fish, 



(c) With floating logs -- Utilizing the skipjack's habit of swimming along 

 with a piece of wood floating in the ocean, one first detects the presence 

 cf driftwood and then ascertains whether or not it is accompanied by a 

 school, 



(d) ^th sardines -- This method takes advantage of the skipjack's habit 

 of surrounding and concentrating a school of sardines„ A watch is kept 

 for the peculiar appearance of the surface of the ocean where a school of 

 skipjack is feeding on a school of sardines. 



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