Effect of temperature on growth and survival of juvenile Lutraria sieboldii

We studied the effect of temperature on the survival and growth of juvenile Lutraria sieboldii average shell height: (2.89 0.32) mm, average shell length: (1.77 0.21) mm at salinity of 29.0 and temperature of 8~34 ℃. The results reveal that the suitable temperatures for survival and growth of juveniles were 16.3~31.5 ℃ and 18.5~31.8 ℃, respectively; the optimum temperatures for survival and growth were 25~28 ℃ and 25~30 ℃, respectively. The optimum temperatures for survival and growth bent towards high-temperature side obviously. The survival and daily growth rate of juveniles shell length and height showed a decreasing trend and high-temperature side decreased more significantly than low-temperature side. On low-temperature side, the daily growth of shell length was slower than that of shell height; however, the former exceeded the latter within the optimum temperature range of 25~28 ℃, which was contrary to the aforementioned trend, but was unobvious on high-temperature side.