This study was to investigate the effects of water temperature and food on the mass seed production of larval
parrot fish, Oplegnathus fasciatus. Growth of the larvae reared at heated water temperature (25.3oC) was significantly
higher than that of the larvae reared at natural water temperature (20.5oC). In addition, survival rate of
survival rate of the larvae fed mixed diets of Nannochloropsis oculata, rotifer (Brachionus rotundiformis), Artemia
nauplii, Tigriopus japonicus and artificial diets were significantly higher than that of the larvae fed only either rotifer
hatching were 22.5% and 62.0?.0 mm, respectively. Amount of consumed rotifers at one time feeding by a larva
was rapidly increased with growth from 10.3 individuals per larva 5 day old to 65.5 individuals per larva 20 day old.