The garden snail (Helix aspersa) as a bioindicator of organophosphorus exposure: effects of dimethoate on survival, growth, and acetylcholinesterase activity.

@article{Coeurdassier2001TheGS,
  title={The garden snail (Helix aspersa) as a bioindicator of organophosphorus exposure: effects of dimethoate on survival, growth, and acetylcholinesterase activity.},
  author={Micha{\"e}l Coeurdassier and Marianne Saint-Denis and A Gomot-de Vaufleury and Dr Esteban Ribera and P M Badot},
  journal={Environmental toxicology and chemistry},
  year={2001},
  volume={20 9},
  pages={1951-7}
}
The garden snail (Helix aspersa) is currently used as bioindicator of metallic pollution. Our objective was to extend its use to organic chemicals by studying the effects and tissue concentrations of the organophosphorus pesticide dimethoate following dietary uptake. After exposure for four weeks to increasing doses of pesticide in the diet, the median lethal concentration (LC50) was determined to be 3,700 microg/g food. Clinical signs indicated a no-observed-effect concentration of 100 microg… CONTINUE READING