Environmental & Analytical Toxicology

Jerome Cachot

Publications

• Research Article
  A New Multi-cell Exposure System for Continuous Tracking of Daphnia Behavior for Toxicity Assessments
  Author(s): Julie Chevalier, Matthias Grote, Merlin Keller, Pascal Pandard and Jerome CachotJulie Chevalier, Matthias Grote, Merlin Keller, Pascal Pandard and Jerome Cachot
  
  For several years, video tracking systems have been developed to analyze alterations in the swimming behavior of daphnia to provide early signals of chemical stress. However, these systems have limited testing abilities that do not allow for a systematic analysis of the robustness of behavioral endpoints. With recent advances in behavior tracking technology, we were able to develop a new behavioral analysis multi-cell exposure system named “Multi-DaphTrack” with a high-throughput testing capacity for assessing the behavioral response of Daphnia magna. The insecticide esfenvalerate was chosen as chemical model and tested on daphnid neonates at several concentrations for 48 h to (i) evaluate the performance of this new system and (ii) compare the sensitivity of our new multi-cell system with the standard immobilization assay and the Bbe®Daphnia Toximeter. Overall, the r.. Read More»
  

  Abstract PDF