ACUTE AND CHRONIC TOXIC EFFECT OF DIAZINON PESTICIDE EXPOSURE ON GILLS TISSUES OF LIZA ABU (HECKEL,1843)

Abstract

Liza aim fish were exposed to different concentrations of the Diazinon pesticide(Organophosphate pestieide)'(diethyl 2—isopropyI -6- methyl -4- pyriinidiny'l phosphoro~thionate) in the acute exposure (96) hour and chronic exposure (I4) days ,l'llSlDptlI.l]0l0glCE1l examination showed the hyperplasia of tl1c gill tissue, someengorgement with blood of the secondary larnellae, epithelial separation . necrosis .clubbing of epithelial cells and fusion of adjacent secondary lamcllae. These changesdifferent according to the pesticide concentration and it's exposure time

Keywords

Diazinon, Gill, toxic