Assessment of bacterial, heavy metals and pesticides pollutants in Nile tilapia and catfish

Abstract

A total of 120 samples of Nile tilapia (Oreochromis niloticus) and catfish (Clarias gariepinus) examined to assess the presence of different pollutants from bacterial, heavy metals and pesticides hazards associated with them from three different locations in Egypt. The results showed a high prevalence for Coliform, Fecal coliform and Staphylococcus counts and Pseudomonas aeruginosa was the dominant microorganism in the examined fish samples, only lead and cadmium were exceeded the national and international permissible limits. The dominant pesticides that were detected in the study were Hexachlorobenzene (HCB), Methyl parathion and Cypermithrin were detected in all fish samples from the three locations. Frying caused significant losses in the concentrations of most of examined heavy metals and pesticides than grilling.