To evaluate the difference in the percentage of decrease in algal density between LN and HN, the average algal density in each group at 27 °C was renormalized to 1 and all the density data were converted to the relative value.
To evaluate the differencein the percentage of decrease in algal density between LN and HN, theaverage algal density in each group at 27 °C was renormalized to 1and all the density data were converted to the relative value.