Inter-American Tropical Tuna Commission. 1978. Report 

 of the Inter-American Tropical Tuna Commission for 

 the year 1977. [In Engl, and Span.] Inter-Am. 



Trop. Tuna Comm., Annu. Rep. 1977, 180 p. 



Skipjack larvae captures were highly corre- 

 lated with sea surface temperatures suggest- 

 ing that the area of warm water might be a 

 good index of skipjack spawning or survival 

 of larvae, which could be related to year 

 class abundance of adult fish. Compared the 

 use of atmospheric pressure and sea surface 

 temperature differences as indicators of 

 skipjack year class abundance. 



KEY WORDS: tuna, skipjack, spawning, abun- 

 dance, temperature. Southern Oscillation 

 index. 



35 



