However, these sublethal symptoms were not observed in fingerlings of rainbow trout exposed to a mean concentration of 22.3 ppm F- after 8 days.
然而，这些亚致死的症状并没有观察到鱼种虹鳟鱼暴露在平均浓度百万分之22.3的F -后8天。
After being treated at the sublethal dosages, the mortality of tested insects increased with fipronil concentration and observation time.
亚致死剂量锐劲特处理小菜蛾试虫后，其死亡率随着剂量的升高、观察时间的延长而增加。
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