year to yeare Until 1935 the summer fishery overshadowed the 

 winter fishery, but from 1935 on, the winter fishery was clearly 

 preponderant, and the summer fishery was relegated to second place » 

 As was stated earlier, the summer fishery is carried on in con- 

 junction with the skipjack fishery, and its fishing g rounds hardly 

 change at all from year to year, being generally within about 500 

 miles from the coasto Compared with the winter fishery, the total 

 number of vessels engaged is larger, despite which fact the total 

 catch has gradually decreasedo This is because the fishing grounds 

 of the winter fishery have gradually been pushed farther and farther 

 east from year to year into the waters where the albacore are, iirtiile 

 the fishing grounds of the sununer fishery have remained fixed within 

 the range of the skipjack fisheries with no extension of the fishing 

 grounds. In addition, it is thought that in recent years there has 

 been a great change in the migration of the summer albacore which 

 are taken on the skipjack fishing grounds. It should be noted 

 that beginning about 1933, a large number of very small fish about 

 8 pounds in weight (including quite a number of around 6 pounds in 

 weight) began to be taken. 



Albacore Catch of Japan 

 /\ ton (2,000 lbs.) = 2U2 kan/ 



1/ Approximate figures. 



