This study aimed to determine the effect of rearing water temperature on survival, growth and molting cycle of the mud crab, S. paramamosain from Megalopa up to 1st crablet instar (Crablet 1) and from Crablet 1 to 2nd crablet instar (Crablet 2). Different water temperature regimes were implemented i.e. 20 °C, 24 °C, 28 °C, 32 °C, 36 °C and ambient temperature. The observed parameters were: successful molting from Megalopa to Crablet 1 and from Crablet 1 to Crablet 2, survival in Crablet 1 and Crablet 2, growth (carapace increment of crablets), Specific Growth Rate of carapace width (SGR_CW) and, molting interval (in days) from Megalopa to Crablet 1 and from Crablet 1 to Crablet 2. The results showed that the highest survival rate from Megalopa to Crablet 1 was found at 24 and 28 °C where both could reach up to 100%. At water temperature of 32 °C and ambient temperature, the survival rate were 96.66%. The lowest survival rate was found at 20 °C and 36 °C treatments (p < 0.05) and the crablets at both treatments only survived until Crablet 1 stage (the crablets died 3 and 1 days after molting, respectively). The size and ratio of the carapace of Crablet 1 and Crablet 2 were not significantly different between treatments (p > 0.05), but there were significant differences in molting intervals (p < 0.05) for both Megalopa to Crablet 1 and Crablet 1 to Crablet 2 phases. Treatment of ambient temperature (27–30 °C) had the fastest molting interval from Megalopa to Crablet 1 but its value not significantly different with treatment of 24, 28 and 32 °C. The fastest molting interval from Crablet 1 to Crablet 2 was found at 32 °C which was 2.96 days (p < 0.01). Based on this study, it is recommended that rearing from Megalopa to Crablet 1 should take place at a temperature of 28 °C while, in Crablet 1 to Crablet 2 phase, a temperature of 28 to 32 °C is recommended.

这项研究旨在确定饲养温度对泥，S. paramamosain从Megalopa到第一只幼蟹龄（蟹1）和从Crablet 1到第二只幼蟹龄（蟹2）的存活，生长和蜕皮周期的影响。实施了不同的水温方案，即20°C，24°C，28°C，32°C，36°C和环境温度。观察到的参数为：成功地从Megalopa蜕变成Crablet 1，从Crablet 1蜕变为Crablet 2，Crablet 1和Crablet 2的存活率，生长（蟹壳的甲壳增量），甲壳宽度的比生长速率（SGR _CW）），以及从Megalopa到Crablet 1以及从Crablet 1到Crablet 2的蜕皮间隔（以天为单位）。结果表明，从Megalopa到Crablet 1的成活率最高是在24和28°C时，两者均可达到100 ％。在水温为32°C和环境温度下，存活率为96.66％。在20°C和36°C的处理条件下发现最低的成活率（p  <0.05），两种处理的蟹肉都只能存活到蟹肉1期（蟹肉在蜕皮后3天和1天死亡）。两次处理之间，蟹肉1和蟹肉2的甲壳的大小和比率无显着差异（p  > 0.05），但蜕皮间隔有显着差异（p <0.05）对于Megalopa到Crablet 1和Crablet 1到Crablet 2两个阶段。从Megalopa到Crablet 1，环境温度（27–30°C）的换羽间隔最快，但在24、28和32°C的处理中其值无显着差异。从蟹1到蟹2最快的蜕皮间隔是在32°C下进行的，为2.96天（p  <0.01）。根据这项研究，建议从Megalopa到Crablet 1的饲养温度应为28°C，而在Crablet 1到Crablet 2相的饲养温度则建议为28至32°C。