Bulletin of Environmental Contamination and Toxicology

, Volume 89, Issue 3, pp 568–571

Assessment the Toxic Effects of Dimethoate to Rotifer Using Swimming Behavior

Article

DOI: 10.1007/s00128-012-0712-x

Cite this article as:
Guo, R., Ren, X. & Ren, H. Bull Environ Contam Toxicol (2012) 89: 568. doi:10.1007/s00128-012-0712-x

Abstract

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·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.

Keywords

DimethoateRotiferAquatic toxicitySwimming behavior

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.State Key Laboratory of Pollution Control and Resource Reuse, School of the EnvironmentNanjing UniversityNanjingPeople’s Republic of China