| 马拉硫磷和甲氰菊酯对萼花臂尾轮虫生殖的影响 |
| Effects of Malathion and Fenpropathrin on the Reproduction of Brachionus calyciflorus |
| 投稿时间：2012-01-17 修订日期：2012-04-04 |
| DOI： |
| 中文关键词:马拉硫磷 甲氰菊酯 萼花臂尾轮虫 生殖 |
| 英文关键词:malathion fenpropathrin Brachionus calyciflorus reproduction |
| 基金项目:江苏海洋生物技术重点建设实验室开放课题(2009HS15) |
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| 中文摘要: |
| 研究了不同浓度马拉硫磷(malathion)(0.03、0.3、3.0、30.0、300.0、3000.0μg/L)和甲氰菊酯(fenpropath-rin)(0.004、0.04、0.4、4.0、40.0、400.0μg/L)对萼花臂尾轮虫(Brachionus calyciflorus)3d种群增长率、携卵雌体数/非携卵雌体数、混交雌体百分率、混交雌体受精率及7d休眠卵产量影响。结果表明,马拉硫磷、甲氰菊酯对种群增长率、混交雌体百分率、混交雌体受精率及7d休眠卵产量有显著影响;马拉硫磷对携卵雌体数/非携卵雌体数无显著影响,但甲氰菊酯有显著影响。马拉硫磷对轮虫休眠卵产量最低效应浓度(LOEC)为0.3μg/L,对混交雌体百分率LOEC为30.0μg/L,对种群增长率和混交雌体受精率LOEC为300.0μg/L;甲氰菊酯对轮虫休眠卵产量最低效应浓度0.04μg/L,对混交雌体百分率和携卵雌体数/非携卵雌体数LOEC为4.0μg/L,对种群增长率和混交雌体受精率LOEC为40.0μg/L。试验显示,马拉硫磷和甲氰菊酯对轮虫生殖存在差异,轮虫休眠卵产量可以用来监测和评价2种杀虫剂潜在的影响。 |
| 英文摘要: |
| Reproduction of Brachionus calyciflorus was studied under different concentrations of malathion and fenpropathrin，including the parameters of 3-d population growth rate(r}，ovigerous females/non一ovigerous females(OF/NOF)，mixis rate(MR)，fertilization rate(FR)，and 7-d resting egg production(RE).The results showed that malathion and fenpropathrin significantly affected r, MR and FR of B. calyciflorus . Malathion had no significant effect on OF/NOF，while fenpropathrin significantly affected OF/NOF. The lowest observed effect concentration(LOEC)of malathion affected RE，MR，r and FR was 0. 3，30. 0，300. 0 and 300. 0μg/L respectively. LO-EC of fenpropathrin affected RE，MR，OF/NOF，r and FR was 0. 04，4. 0，4. 0，40. 0 and 40. 0μg/L respective1y. This study indicated that there were different effects between malathion and fenpropathrin on the reproduction of rotifer, and the RE could be used as an indicator to assess the potential effect of these two pesticides in water. |
| 陆正和,吴建新,罗刚.2012.马拉硫磷和甲氰菊酯对萼花臂尾轮虫生殖的影响[J].水生态学杂志,33(3):122-127. |
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