The objective of the present study was to evaluate the effects of temperature and salinity on the quality of larvae of golden trevally Gnathanodon speciosus. The experiment was carried out in three temperatures (30, 32, 34?) combined with four salinities (15, 20, 25, 30 ppt). Each treatment was repeated five times. The quality of larvae included growth, survival rate, feeding ability and respiration was determined after two weeks of experiment. The results showed that the growth, survival, feeding ability as well as respiration of golden trevally larvae were the most affected by the combined treatment of 34? with 20 ppt. Meanwhile, treatment at the temperature of 30? combined with salinity of 30 ppt gave the best survival, growth, feeding ability and respiration. If the temperature was increased to 32?, the quality of golden trevally larvae tends to decrease and decrease sharply if the temperature was increased to 34?. Moreover, high temperature combined with low salinity strongly affects the quality of golden trevally larvae. Therefore, the quality of golden trevally larvae will be reduced if they culture at low salinity conditions combined with high temperature.
Keywords: Golden trevally, Gnathanodon speciosus, temperature, salinity.