CAJ | 학술논문

运用生态毒理学方法,研究了农药杀螟硫磷对褶皱臂尾轮虫急性和慢性毒性影响.结果表明:杀螟硫磷对轮虫24 h急性毒性半致死浓度为9.57 mg/L;慢性毒性中,除浓度为0.5 mg/L外,一般随着浓度升高,幼体期延长,生殖期缩短,寿命缩短,生殖量下降;种群增长随浓度增加而减缓,但低浓度没有影响;除0.5 mg/L实验组所产休眠卵数量比对照组略增外,其它各实验组随浓度增加其休眠卵数量和孵化率明显下降,这表明杀螟硫磷毒性监测休眠卵孵化率可作为重要的监测指标.
운용생태독이학방법,연구료농약살명류린대습추비미륜충급성화만성독성영향.결과표명:살명류린대륜충24 h급성독성반치사농도위9.57 mg/L;만성독성중,제농도위0.5 mg/L외,일반수착농도승고,유체기연장,생식기축단,수명축단,생식량하강;충군증장수농도증가이감완,단저농도몰유영향;제0.5 mg/L실험조소산휴면란수량비대조조략증외,기타각실험조수농도증가기휴면란수량화부화솔명현하강,저표명살명류린독성감측휴면란부화솔가작위중요적감측지표.
The acute and chronic toxicity effect of fenitrothion on rotifer Brachionus plicatilis is studied. The results showed that the acute lethal threshold of fenitrothion to rotifer was 9.57mg/L in 24h in chronic toxicity. The larval period was longer than the control period of reproduction, longevity and the production of eggs are decline with the concentration of fenitrothion except 0.5 mg/L. In addition, with the increase of toxicity, rotifer produced few resting eggs than the control, but in the concentration of 0.5 mg/L, rotifer produced resting eggs more than the normal. In the end, the rate of hatching of resting eggs was decreased with the intensity of toxicity, this was an important index in testing toxicity.