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Effects of Pesticide Formulations and Active Ingredients on the Coelenterate Hydra attenuata (Pallas, 1766)

  • Pablo M. Demetrio
  • Gustavo D. Bulus Rossini
  • Carlos A. Bonetto
  • Alicia E. Ronco
Article

Abstract

Lethal effects of active ingredients and formulations of widely used soybean pesticides were assessed with the Hydra attenuata toxicity test. Studied pesticides were insecticides chlorpyrifos and cypermethrin, and herbicide glyphosate. Results indicate the following toxicity trend: chlorpyrifos > cypermethrin > glyphosate. Tested active ingredients of insecticides and respective formulations did not significantly differ between them. Glyphosate formulation exhibited higher toxicity at low concentrations (LC1–10) respect to active ingredient, reversing this behavior at higher concentrations (LC50–90). Comparing H. attenuata sensitivity with existent toxicity data for aquatic organisms indicates that this species is poorly sensitive to tested insecticides and highly sensitive to the herbicide.

Keywords

Herbicides Insecticides Toxicity Hydra 

Notes

Acknowledgments

Funds for this study were from ANPCyT Project PICT-38350, Argentinean Ministry of Science and Technology. The authors wish to thank Dr. Damián Marino for chemical analysis of samples and Courtney Knipp for editorial suggestions.

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Pablo M. Demetrio
    • 1
  • Gustavo D. Bulus Rossini
    • 1
  • Carlos A. Bonetto
    • 2
  • Alicia E. Ronco
    • 1
  1. 1.Centro de Investigaciones del Medio Ambiente, Departamento de Química, Facultad de Ciencias ExactasUniversidad Nacional de La PlataBuenos AiresArgentina
  2. 2.Instituto de Limnología Dr. Raúl A RingueletUniversidad Nacional de La PlataBuenos AiresArgentina

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