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Total chlorophyll concentrations under ALAN. Cladocopium (A) and Durusdinium (B) cell cultures (pg total chl per ml) after one-month exposure to ALAN resulting from blue, yellow or white LEDs; irradiance level 0.15 μmol quanta m–2 s–1 (4–5 lux). Data are expressed as mean ± SEM (n = 3), ANOVA was followed by post hoc Tukey’s test, asterisks indicate significantly different mean values (*p < 0.05).
