Toxic effects of pyrethroid insecticides in non-target aquatic organisms
Event details
| Date | 21.02.2011 |
| Hour | 16:15 |
| Speaker | Dr Inge WERNER; EAWAG-Centre for Ecotoxicology |
| Location |
GR B3 30
|
| Category | Conferences - Seminars |
Pyrethroid insecticides are widely used in agriculture and residential pest control. In recent years, they have been identified as pollutants in water and sediments of surface water bodies in California and elsewhere. Measurement of these hydrophobic and relatively short-lived, but highly toxic chemicals can present considerable challenges with respect to adsorption to sampling equipment, and degradation during sample storage, while analytical detection limits in water samples (1-3 ng/l) are in the range of biological effect concentrations for sensitive aquatic invertebrates. Measured surface water concentrations are in a range where ecological fitness of fish may be impaired indirectly by the depletion of invertebrate prey, and directly by sublethal toxic effects on behavior or immune responses. This presentation will provide an overview of known toxic effect levels of pyrethroids in aquatic species, as well as information on their sublethal effects in fish.
Links
Practical information
- General public
- Free
Contact
- Dr Sophie Campiche