Effect of some water pollutants on the Nile tilapia, Oreochromis niloticus collected from the River Nile and some Egyptian Lakes
Abstract: Pollution of surface water has increased due to the industrial effluents, waste municipal and agricultural drainage water that discharged directly into it. The present study measured the concentrations of some heavy metals (Fe, Cu, Zn, Pb and Cd) in water, sediment and fish collected from certain Egyptian lakes (Maryut, Manzala, El-Burullus, Edku and Qarun), a polluted site of the river Nile (Shubra El-Khiema, Cairo sector), in addition to Ismalia canal (El-Abbassa region). The results revealed that fish collected from the polluted site of the river Nile and the studied lakes (Maryut, Manzala, El-Burullus and Edku) showed the lowest growth factor, hepatosomatic index, meat quality and disturbances in the studied physiological state as indicated by the increase in serum glucose, total protein, AST, ALT, alkaline phosphstase, creatinine, uric acid and a decrease in serum total lipids. In comparison, fish collected from lake Qarun exhibited levels of meat quality and growth indices higher than those collected from the other studied sites and showed normal levels in the different studied biochemical parameters as those of the control group collected from Ismalia canal. Chemical analyses of water samples suggested that high salinity, total alkalinity and total hardness in lake Qarun might have inhibited the bioaccumulation of any of the studied heavy metals (Fe++, Cu++, Zn++, Pb++ and Cd++) in the different studied organs of Oreochromis niloticus to be within permissible levels as those of fish collected from Ismailyia canal (Abbassa region). However, fish collected from the other studied lakes and the polluted site of the river Nile accumulated spatially the heavy metals in the different studied fish organs.
Publication year 2001
Pages 251-279
Organization Name
Country Egypt
City القاهرة
serial title المجلة المصرية للبيولوجيا المائية والمصايد
Volume 5 . 4
Department Breeding and Genetics
Author(s) from ARC
External authors (outside ARC)
    Zaghloul
    mahmoade Metwally
Agris Categories Aquatic ecologyPollution
AGROVOC
TERMS		 Biochemical reactions. Egypt. Heavy metals. Nile river. Oreochromis niloticus. Water pollution.
Publication Type Journal
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