(2) Grounds South of the Subtropical Convergence 



Albacore fishing in these areas is extremely dull, with only a few 

 taken fronn time to time incidental to fishing for other species. Since no 

 importajit changes in the location of the albacore cam be detected during 

 the period of May to August, they will be summarized in the next section. 



JUNE - AUGUST 

 General 



During this 3-month period the albacore continue, as in May, to 

 be unavailable to the longline fishery. In waters near Japan throughout 

 all of June and up to the middle of July pole-and-line fishing for albacore 

 is carried on, following the schools of medium-sized and small albacore 

 moving northward, but throughout all sea areas of the northwest Pacific 

 there is no concentrated albacore longline catch. From June to the mid- 

 dle part of July albacore landings continue high, but these are all fish 

 taken by pole and line, not by longline. 



(1) North Pacific Ground 



In the overall picture longline catches of albacore are extraordinarily 

 rare. We have some data showing fair catch rates in June west of Midway 

 Island in the vicinity of 33°N. to 34°N. , 170°E. to 180°. From June to 

 Septennber the position of the Subtropical Convergence runs through the 

 points of 31°N. at 150°E., 29°N. at l60°E., 30 N. at 170°E., 32°N. at 

 180 , and 33 N. at 170 W. , or somewhat south of the area of albacore 

 catches noted above. The data are the results of observations made by 

 the Shizuoka Prefecture fisheries guidance vessel Fuji Maru in May and 

 June 1937, and according to these data considerable nunnbers of albacore 

 are taken at times, but the fishing situation appears to lack stability. The 

 weight of the fish ranged rom 2.5 kan to 4 kan /21 to 33 lbs. /and averaged 

 3 kan /25 lbs. / resennbling the fish which are taken by pole-and-line fishing 

 in Japanese waters; they are considered to be clearly different from the 

 large albacore occurring south of the Subtropical Convergence, 



As was stated in the April section, the medium-sized and small 

 albacore are thought to turn back to the northward altogether without 

 penetrating south of the Convergence, and the results of the Fuji Maru's 

 investigations are also thought to indicate this sort of situation. The 

 pole-and-line fishing grounds in Japanese waters are formed slightly to 

 the north of the Subtropical Convergence, and the above-mentioned results 



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