INSTITUTO DE LIMNOLOGIA "DR. RAUL A. RINGUELET"
Unidad Ejecutora - UE
ACUTE TOXICITY OF ORGANOPHOSPHATE FENITROTHION ON BIOMARKERS IN PRAWN PALAEMONETES ARGENTINUS (CRUSTACEA: PALAEMONIDAE)
LAVARIAS, SABRINA MARIA LUISA; GARCÍA, FERNANDO
ENVIRONMENTAL MONITORING AND ASSESSMENT
Lugar: Maine; Año: 2015 vol. 187 p. 65 - 65
The effect of the organophosphate fenitrothion(FS) on the non-target freshwater prawn Palaemonetesargentinus was studied. Initially, the 96-h lethal concentration(LC50) of FS was determined in adult prawns.Inhibition of cholinesterase (ChE) in the muscle andhemolymph was assessed. Then, in the hepatopancreas,the activities of superoxide dismutase (SOD), catalase(CAT), and glutathione-S-transferase (GST) were analyzed.Lipid peroxidation (LPO) was also determined inthe hepatopancreas. The 96-h LC50 value was 1.12 μg/L.Hemolymph ChE activity showed a significant decreasein exposed prawns to FS compared to the control group,while no significant differences in the muscle were observedbetween groups (p