twice daily, at 8.00 a.m. and 3.00 p.m. Water temperature and salinity
remained constant at 25 °C and 35‰, respectively, during rearing.
About 20% of the rearing water was daily changed from 5 dph up to
17 dph, and then gradually increased to 100% by the end of the
experiment.
Final survival rate was determined at the end of the experiment by
counting the number of larvae harvested.