The Response of Ruditapes philippinarum for Thermal Discharge

Abstract:

Experiment is applied in order to study the influence of thermal discharge to Ruditapes philippinarum. According to the result, if the water is 38.0, 40.0, 42.0 and 44.0°C, it die within 9.7,5.2,1.6 and 0.5 hours accordingly. Activity diminishes if the temperature of thermal shock is over 38.0°C, and the higher the temperature is, the higher the mortality will be. The average time of siphon retract is about 0.92 seconds when they live in 22.0°C,after the short-term thermal shock is over 35°C, the average time lasts more than 2 seconds. The 24 hours upper incipient lethal temperature(UILT₅₀) to live is 39.21±1.023°C.And after immersing 45minutes in the raising water whose chlorine concentration is 0.52g/L and at 22.0°C, the mortality is 0 within 24 hours. However, it is very sensitive to chlorine, if the concentration at 0.052mg/L-0.072mg/L, it will start their avoidance reaction.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 149-152
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.149
• Online since: December 2012
• Authors: Hong Yang, Li Li Ding
• Keywords: Residual Chlorine, Ruditapes Philippinarum, Thermal Shock, Toxic Experiment

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