Inoue, M. 1959. Studies on the movements of albacore 

 fishing grounds in the northwest Pacific Ocean. 2. 

 Influence of fluctuations of the oceanographical 

 conditions upon the migration and distribution of 

 albacore in winter-summer season and its fishing 

 ground in the southern waters off Japan. [In 

 Jpn., Engl, summ.] Bull. Jpn . Soc . Sci. Fish. 

 25:424-430 



Described three patterns of albacore distri- 

 bution based on seasonal isotherm distribu- 

 tions. Albacore distributions conformed to 

 the distribution of isotherms within each 

 pattern type. Winter and summer migrations 

 were controlled by warm- and cold-water 

 masses which acted as barriers to fish move- 

 ments, which also influenced the timing of 

 the fishing season. 



KEY WORDS: tuna, albacore, oceanography, 

 temperature, season, habitat, migration. 



Inoue, M. 1960. Studies of movements of albacore fish- 

 ing grounds in the northwest Pacific Ocean. III. 

 Influence of fluctuations of the oceanographical 

 conditions upon the fishing grounds of albacore in 

 the summer period and its fishery conditions in 

 the eastern waters off Japan. Bull. Jpn. Soc. 

 Sci. Fish. 26:1152-1161. 



Albacore accumulated at frontal edges against 

 cold water. Fronts provided a barrier to 

 movement and warm tongues provided a mech- 

 anism of "environmental inductance." Pat- 

 terns of sea surface temperature distribution 

 were plotted, showing meanders in edge of 

 Kuroshio. Albacore occurred in warm-water 

 pockets which intruded into cooler water. 



KEY WORDS: tuna, albacore, seasons, catch, 

 distribution, migration, oceanography, 

 fronts, temperature, convergence, season. 



32 



