FISHERY BULLETIN: VOL 76, NO. 3 



I9«8 1909 1950 1951 195? 1953 1954 1955 1956 1957 1956 1959 I960 1961 1962 I96i 



1955 1956 



YEARS 



1957 1953 



Figure 2a. — Triple 6-mo running mean plots of anomalies of the difference in sea level atmospheric pressure ( millibars) between Juan 

 Fernandez Is. (33°37'S, 78°50'W) and Darwin, Australia 1 12°26'S, 130"52'El, between Easter Is. (27°10'S, 109°26'W) and Darwin, 

 between Totegegie i23°06'S, 134°52'W) (Gambler Is.) and Darwin, between Rapa (27°37'S, 144°20' W) (Austral Is.) and Darwin, and 

 between Tahiti ( 17°33 'S, 149°20'W) (Society Is.) and Darwin for 1948-63. El Nino t.ype events (EN) are indicated in strong (S), moderate 

 (M), and weak or very weak (W) intensity. 



i96a 1965 1966 1967 1968 1969 1970 1971 



1972 1973 197a 1975 1976 1977 



I96« 1965 1966 1967 1968 1969 1970 1971 



YEARS 



1972 1975 I97fl 1975 



1977 1978 



Figure 2b. — Triple 6-mo running mean plots of anomalies of the difference in sea level atmospheric pressure (millibars) between Juan 

 Fernandez Is. and Darwin, between Easter Is. and Darwin, between Totegegie and Darwin, between Rapa and Darwin, and between 

 Tahiti and Darwin for 1 964-76. El Nino type events (EN) are indicated in strong (S) , moderate ( M) , and weak or very weak ( W ) intensity. 



666 



