# Chlorophyll a

         Chlorophyll $$a$$ is assumed to be directly proportional to the concentration of phytoplanktonic algal biomass.

            $$chla=\alpha\_0\*algae$$                                                                                                 7:3.1.1

where $$chla$$ is the chlorophyll a concentration (μg chla/L), $$\alpha\_0$$ is the ratio of chlorophyll $$a$$ to algal biomass (μg chla/mg alg), and $$algae$$ is the algal biomass concentration (mg alg/L).