are maintained at 35‰ salinity, 27±1 °C
and 12:12 h light:dark photoperiod, food is a 1:1:1:1 mixture in equal
cell numbers of N. oculata, I. galbana, C. muelleri and T. suecica supplied
daily in the appropriate volumes to maintain a near constant cell
concentration of 320 cells μL−1. Partial harvests (75%) are after two
weeks, and the yields obtained with these cultures range between 1.46
and 3.93 organisms mL−1