Some heavy metal contents and enzymes in two fish species from two areas along the White Nile

Abstract

Abstract
 The objective of the present study was to determine heavy metals and two enzymes of two fresh water fish namely: Oreochromis niloticus and Synodontus schall from two sites along the White Nile . Al-Dubaseen area was considered the site with high contamination where dumping of industrial effluents takes place and Al-Kalakla area was 5km south before the dumping area and considered area with less pollution. Twenty Fish samples from the two sites were transported to the laboratory for the estimation of the heavy metals Lead( Pb),Cadmium(Cd),Iron (Fe) ,Zinc(Zn) and two enzymes glutamic-pyruvic transaminase (GPT) and Glutamic-oxaloacetic transaminase (GOT) .Results revealed that both fish species accumulated Pb,Fe,and Cu above permissible levels whereas Cd and Zn levels were within permissible levels. Results also showed that gills in general accumulated more heavy metals than muscles in both studied species .The heavy metals pattern in both muscles and gills was Fe> pb>Cu>Cd>Zn. The enzymatic estimation showed that activity of the two enzymes showed elevated levels of GOT than GPT in both fish collected from both two sites.