Analytical Study on the Effect of Bioaccumulation of Toxic Metals in the Meat of Oreochromis Niloticus (Tilapia) Fish in Jebel Aulia Dam Lake on their Body Size

Abstract

Heavy metals are the most important form of pollution of the aquatic environment because they are toxic and bioaccumulate in the body of aquatic organisms of which fish is the most valuable. Inaddition to protein and vitamins, fish (which forms part of the human diet) is a rich source of minerals which play essential role in human health .Polluted .fish is then a dangerous source of toxic metals to humans The present work examined the concentration levels of Pb, Cd, Ni, Cu, Mn and Fe in water and inOreocromisniloticus fish of Jebel Aulia dam Lake. A correlation between the concentration of each of the metal contaminants in fish and its body size (weight and length) was also investigated Samples of water and fish (which were decomposed by dry ashing) were collected from Jebel Aulia Dam Lake, and their metals content (Pb, Cd, Ni, Mn, Cu and Fe) were determined by inductively coupled plasma-emission spectroscopy (ICP(