larvae cultured under total darkness grew very slowly and even negatively , and all died within 12 days. the SGR and survival rate significantly increased with an increase in daylength from 6 to 24 hour
temperature strongly affected the growth and survival of obscure puffer larvae. The total length significantly increased with an increase in temperature from 20 to 29 C at 13 dah and 19 dah,while there was on significant difference in total length between 32 and 26 C at 13 dah or between 32 and 29 C at 19 dah. Similar results were obtained for the specific growth rate.The SGRs significantly increased with an increase in temperature from 20 to 29 C ,while there was no significant in the SGR from 29 to 32 C.A cubic equation between the SGR and the temperature was established. The survival rate significantly decreased with the increase in temperature from 23 to 32 C, while the survival rate at 20 C was not significantly different at 23 and 26 C . the survival rate and temperature had a significant quadratic relationship,in which the highest survival rate was predicted to occur at 22.04 C