YOSHIDA: JUVENILE ALBACORE IN SOUTH PACIFIC OCEAN 



Figure 3. — The quarterly distribution of juvenile albacore in the South Pacific, all years combined. The shadings 

 show areas from which billfish stomachs were collected. The dots show where juvenile albacore were taken. 



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NUMBER OF BILLFISH STOMACHS EXAMINED 

 99 48 92 157 167 248 196 240 218 224 237 183 



JULY AUG SEPT OCT NOV DEC JAN FEB MAR APR MAY JUNE 



Figure 4. — Apparent abundance of juvenile albacore in 

 the South Pacific. 



between lat 10° and 20° S than in the area north 

 of lat 10° S. Combining the data for all years, 

 7.5 juveniles per 100 billfishes were taken be- 

 tween lat 10° and 20° S, and 4.5 juveniles per 

 100 billfishes were taken north of lat 10° S. 

 (Near Hawaii between July 1962 and April 1966, 

 juvenile albacore were taken at a rate of 0.8 per 

 100 billfishes [Yoshida, 1968]. Thus, juvenile 

 albacore are apparently more numerous in the 

 South Pacific than around Hawaii.) 



SPAWNING 



Variations in seasonal and geographic distri- 

 bution and apparent abundance of juvenile al- 

 bacore may be related to the spawning of the 



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