Assessment the Toxic Effects of Dimethoate to Rotifer Using Swimming Behavior

作者：Guo, Ruixin; Ren, Xinkun; Ren, Hongqiang^*

来源：Bulletin of Environmental Contamination and Toxicology, 2012, 89(3): 568-571.

DOI：10.1007/s00128-012-0712-x

• Dimethoate
• Rotifer
• Aquatic toxicity
• Swimming behavior

The toxic effects of the common organophosphorus pesticide dimethoate on freshwater zooplankton Brachionus calyciflorus (rotifer) were tested. Because of the advantages of behavioral response in environmental monitoring, swimming behavior was used as the endpoint in this research. After exposure 6 h at five dimethoate concentrations (0.18, 0.53, 0.88, 1.23 and 1.59 mg center dot L-1), the pesticide disrupted the balance in rotifer swimming direction and caused an obvious direction preference. It also inhibited significantly the swimming angular and linear speed. Our results showed that dimethoate has a sublethal toxic effect on this aquatic invertebrate.

• 出版日期2012-9
• 单位污染控制与资源化研究国家重点实验室; 南京大学