Effect of pyrethroid treatment against sea lice in salmon farming regarding consumers' health

Food Chem Toxicol. 2017 Jul:105:347-354. doi: 10.1016/j.fct.2017.04.036. Epub 2017 Apr 27.

Abstract

Pyrethroids are the most popular drug against sea lice in salmon farming. Although they are more toxic to insects, they have toxic effects in mammals. Pyrethroids were detected in 100% of farmed salmon with a mean concentration of 1.31 ± 1.39 ng g-1 ww and in 50% of wild salmon with a mean of 0.02 ± 0.03 ng g-1 ww. Cypermethrin and deltamethrin, the active ingredients of anti-sea lice formulations, represented 77 ± 27% of the total contamination of farmed salmon. Although farmed salmon had higher concentrations than wild salmon, the daily intake of pyrethroids through salmon consumption was several orders of magnitude below the accepted daily intake (ADI). Thus, the pyrethroids treatment on salmon does not pose a threat on the health of the consumers.

Keywords: Enantiomer; Fish farming; Pesticide; Risk assessment; Seafood.

MeSH terms

  • Animals
  • Aquaculture
  • Consumer Product Safety / standards*
  • Drug Residues / analysis*
  • Fish Diseases / drug therapy*
  • Fish Diseases / parasitology
  • Lice Infestations / drug therapy
  • Lice Infestations / veterinary*
  • Phthiraptera / drug effects*
  • Phthiraptera / physiology
  • Pyrethrins / administration & dosage*
  • Pyrethrins / analysis
  • Salmon / parasitology*
  • Seafood / analysis*

Substances

  • Pyrethrins