4., Northeastern area (Sanribi area) 



The schools which appeared in the Zur^an area have moved to the waters 

 off Inubo Saki by June,, The fishing grounds gradually extend to the waters 

 off Shioya Saki in Iwashiro in June and Julyy and to the waters off 

 Kinkazan from June to August, From August to October they extend to 500 

 miles off Kamaishi in Rikuchu with the fishery centered about 350 miles off 

 shore o Some catches are mads within 50 to 60 miles of the coast from 

 schools which happen to come in c5lose„ 



The season starts in the latter part of April around 40°N -- 14.5°Eo 

 The peak season is in July and August around 38'-'N -- 148'^Eo Fishing ends 

 in the latter part of October around 40'^N =" 14.5°Eo All of the schools 

 in this area are migratory fish and they are divided into what are called 

 ascending and descending skipjack„ Within the area they stop for a while 

 at one place and then swim on, The season is long, the grounds are ex- 

 tensive ;, and the catch is the largest of all the areao 



Paragraph 3 Detection of Schools 



1, Preparations for fishing 



In making preparations for a trip the number of days of cruising is 

 determined beforehand depending upon the fishing ground which has been 

 selected for operation, and a number of extra days of reserve cruising 

 range are added to the calculations » 



(a) calculation of fuel requirements, (b) preparation of provisions 

 and drinking water, (c) loading of icej, (d) taking on baitj (e) inspec- 

 tion of the hull and engine., (f) preparation of the fishing 



Success in fishing is determined by the completeness of the prepara- 

 tions made„ This is true in other fisheries as well, but especially 

 minute care is essential in preparing for a skipjack fishing trip because 

 in this type of fishing sc many men have to work in such a small working 

 space. Furthermore the fishing must be done in a short space of timej 

 good opportunities for making a catch are extremely few,, and, as the 

 fortunes of the fishery direct^ it may be necessary to operate with full 

 efficiency for an extremely ^ort time. Consequently the preparations for 

 a trip must be thor&ugh- and minute » 



If even one item is omitted from the preparations^, it will be im- 

 possible to make a good catch„ The amount and quality of the bait are 

 particularly vital considerations. Figuring on a scoop holding 1 ^ 

 Z^3o97 gallons_/, a 20- ton boat will prepare 30 scoops of bait, a 50"*ton 

 boat 60 scoops, and a 100-ton boat about 100 scoops., The amount of bait 

 which is carried naturally depends on the capacity of the bait tankSj, 

 but for present-day skipjack boats a suitable quantity should be a 

 number of scoops within ten per cent of equalling the number of tons of 

 the vessel's displacepfr/tc With a bait tank 6" x 6" x 5"s) the capacity 

 to hold fish of 3c '^ ^ 4.o8 inches in length is expected to be 80 scoops of 

 sardines or 60 scoops of round herringo One scoop can dip up 1 to 



iS 



