三种农药对中华大蟾蜍蝌蚪的急性毒性效应  

Acute Toxic Effects of Stree Pesticides on Bufo Gargarizans Toxicity

作　　者：周志豪 陈星星[1] 陆荣茂[1] 许凯伦 李敏[1] Zhou Zhihao;Chen Xingxing;Lu Rongmao;Xu Kailun;Li Min(Zhejiang Mariculture Research Institute,Zhejiang Key Laboratory-of Exploitation and Preservation of Coastal Bio-resource,Wenzhou 325005,China)

机构地区：[1]浙江省海洋水产养殖研究所浙江省近岸水域生物资源开发与保护重点实验室,浙江温州325005

出　　处：《山东化工》2018年第21期20-23,共4页Shandong Chemical Industry

摘　　要：农药的广泛使用是导致全球两栖动物种群衰退的主要因素之一。本实验以中华大蟾蜍(Bufo gargarizans)蝌蚪为实验材料,研究了甲基硫菌灵,高效氯氟氰菊酯,吡虫啉对中华大蟾蜍的急性毒性效应。实验结果表明,甲基硫菌灵、高效氯氟氰菊酯、吡虫啉对中华大蟾蜍(Bufo gargarizans)蝌蚪的96h半致死浓度(96h-LC50)分别为4.06 mg/L、9.84 mg/L、358.71 mg/L,安全浓度分别为0.041 mg/L、0.121 mg/L、3.58 mg/L。该结果对于进一步研究上述农药对中华大蟾蜍的慢性毒性效应奠定了基础。The widely usage of pesticides is one of the main factors that result in amphibian populations worldwide recession. The purpose of this paper is to present our investigation results of the toxieity effects of pesticides on the larvae of Bufo gargarizans. For our research purpose,we have laid out our semi - static acute toxieity tests of three pesticides （Thiophanate - methyl, Lambda - eyhalothrin and Imidaeloprid） to the larvae of Bufo gargarizans to be conducted. The results of our experiments show that the 96h - LCs0 of Thiophanate - methyl, Lambda - eyhalothrin and Imidaeloprid to the larvae of Bufo gargarizans were equal to 4.06 mg/ L,9.84 mg/L,358.71 mg/L,with the safe concentrations were 0. 041 mg/L,0. 121 mg/L,3.58 mg/L, respectively. The results laid a foundation for further study on the chronic toxieiU effect of pesticides on Bufo gargarizans.

关 键 词：农药 中华大蟾蜍 蝌蚪 急性毒性 安全浓度 

分 类 号：TQ450.26[化学工程—农药化工]