The 1997 El Niño/Southern Oscillation (ENSO 97-98):
Biological observations possibly related to El Niño
 
 Argentina/Uruguay/Malvinas
 
Fish / marine mammals
Birds
Other
July      
August      
September      
October      
November   29 29
December     16
January   12 01
February   02 24
March
April 14 
17 
20
May 01 
07
14
 
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