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研究了臭氧处理后的海水对西施舌(Coelomactra antiquata)胚胎孵化率、幼虫摄食率、生长率和成活率的影响。结果表明,臭氧处理后的海水的化学耗氧量(COD)及NH+4-N的浓度明显下降。西施舌胚胎在通入臭氧(4.17mg/L)10min的海水中,孵化率最高,为97%,在充入臭氧25min的海水中孵化率最低,为72.7%;西施舌幼虫在充入臭氧10～15min的海水中和未经处理的海水中生长较快;幼虫在充入臭氧5min和10min的海水中成活率有所提高。将幼虫放在多次充入臭氧的海水中培养,再放回未经臭氧处理的海水进行17h和30h恢复,30h后其死亡率达85%,而在充入臭氧时间短的的海水中死亡率较低,为33.3%,表明西施舌幼虫的生理机能受到了臭氧的不可恢复破坏。
The effects of ozone-treated seawater on the embryo hatching rate, larval ingestion rate, growth rate and survival rate of Coelomactra antiquata were studied. The results showed that the chemical oxygen demand (COD) and the concentration of NH + 4-N in seawater after ozone treatment decreased significantly. The best hatching rate was 97% in seawater with ozone (4.17mg / L) 10min, and the hatching rate was 72.7% in seawater with 25min ozone filling. ~ 15min seawater and untreated seawater faster growth; larvae in the ozone 5min and 10min seawater survival rate has increased. The larvae were exposed to seawater that had been repeatedly infused with ozone and then returned to seawater that had not been treated with ozone for 17 h and 30 h. After 30 h, the mortality rate was 85%, while in seawater filled in ozone-short period of time The lower rate was 33.3%, indicating that the physiological function of Xylotrophic larvae was irreparably damaged by ozone.