毒死蜱对稀有鮈鲫不同生命阶段的毒性效应  

Toxicity effects of chlorpyrifos to different life stages of Chinese rare minnow(Gobiocypris rarus)

作　　者：杨亚洲[1,2] 蔡磊明[2] 孟智启[1,2] 刘新洋[2,3] 王彦华[2] 蒋金花[2] 赵学平[2] 

机构地区：[1]浙江师范大学化学与生命科学学院,浙江金华321004 [2]浙江省农业科学院农产品质量标准研究所,杭州310021 [3]辽宁大学环境学院,沈阳110000

出　　处：《农药学学报》2014年第1期78-83,共6页Chinese Journal of Pesticide Science

基　　金：环保公益性行业科研专项(2013467026);"十二五"国家科技支撑计划课题(2011BAE06B09)

摘　　要：为探明毒死蜱对鱼类不同生命阶段的毒性效应，以稀有的鲫Gobiocyprisrarus为测试生物，评价了毒死蜱对其的急性毒性及对胚胎生长发育的毒性效应。结果表明：毒死蜱对稀有的鲫胚胎、仔鱼、幼鱼和成鱼的96h—LC铀值分别为7．59（5．14～9．86）、0．393（0．326～0．447）、0．0478（0．0382～0．0549）和0．0272（0．0219～0．0419）mg／L，毒死蜱对稀有的鲫4个生命阶段的毒性大小依次为成鱼〉幼鱼〉仔鱼〉胚胎；稀有的鲫暴露于毒死蜱后最明显的中毒症状是脊柱畸形；此外，质量浓度为6．13—35．8mg／L的毒死蜱在48h时可明显促进稀有绚鲫胚胎的孵化。In order to assess the toxic effects of chlorpyrifos to different life stages of fish, Chinese rare minnow（ Gobiocypris rarus） was used as the test animal, and the acute toxicity as well as the toxic effects of chlorpyrifos on embryonic development of G. rarus were evaluated. The results showed that the 96 h-LCs0 value of chlorpyrifos to embryos, larvae, juvenile and adult fish of rare minnow was 7.59 （5.14 -9.86）, 0.393 （0.326 -0.447）, 0.047 8 （0.038 2 -0.054 9） and 0.027 2 （0. 021 9-0. 041 9） mg/L, respectively. The toxicity of chlorpyrifos to four different life stages of rare minnow as follows： adult fish 〉 juveniles 〉 larval fish 〉 embryo. It shows that the most sensitive symptom was spinal deformity when exposed to chlorpyrifos. In addition, the embryos hatching rate of rare minnow was significantly promoted by chlorpyrifos in the concentration range of 6. 13 - 35.8 mg/L at 48 h.

关 键 词：毒死蜱 稀有的鲫 胚胎 毒性 

分 类 号：TS450.261[农业科学—烟草工业]