Figure 2. Seasonal means of chlorophyll-like pigments in the Gulf of St. Lawrence: 
(April-May); 
in mg m^? 
  
  
  
  
  
spring 
b) summer (June-July); c) fall (August-Septembre). Chlorophyll concentrations are 
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International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996