Oxidative stress and changes in swimming performances at zebrafish model (Danio Rerio H. 1822) produced by acute exposure to deltamethrin

Abstract

Delamethrin can easy reach in the aquatic ecosystems and affects the life forms. It produces significant damage to the fish community. It is less know how the fish community reacts in the first hours when insecticide deltamethrin reaches their ecosystem and what biochemical mechanisms of protection are activated. The measurements of the behavior parameters from the tests can explain how fish community reacts before lethal and sublethal deltamethrin dosage. This can be similar to a shock wave produced during an ecological catastrophe where the fish community is involved. Which is the fate of the survivors? Can be their swimming performances recovered to assure their surviving? The aim of this study was to assess on zebrafish model the oxidative stress intensity (MDA, CAT, SOD, GPx) triggered by the acute exposure to lethal and sublethal relevant concentrations of delthametrin and swimming performances recovery of the survivors for: total distance swim, swim velocity, active swim, clockwise rotations, counterclockwise rotations and maximum acceleration.