A. Measurement of Chlorophyll a concentration for the determination of growing zoospore biomass of U. flexuosa.

Three different levels of light and salinity with both nitrate (80 µmol⁻¹) and phosphate (15 µmol⁻¹) as constant. B. Mean growth rate (d-1) from the interaction of different levels of light and salinity. Bar indicates standard error ±1 (n = 4) and different letters represent significant differences between treatments.