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, Change (mean and SE) in growth rates measured with elutriate, metal or pesticide 415 mixture additions relative to control (no addition) and expressed in percentage for Isochrysis 416 galbana and Thalassiosira delicatula under (A) axenic and (B) xenic culture conditions, Figure, vol.1

, Positive and negative values (%) correspond to, respectively, an increase and a decrease in 418 growth rate relative to control. Asterisks denote a significant difference