A study of the bioaccumulation of three heavy elements in the muscles, gills and liver of four types of economic fish from the Tigris River within the city of Samarra
The current research included studying the concentrations of some heavy elements (cadmium, zinc and copper) in the muscles, gills and liver of four types of fish (Leuciscus vorax, Chondrostoma regium, Carasobarbus luteus and Planiliza abu) quarterly catches starting from August 2018 until March 2019, the results showed the accumulation of heavy elements in the tissues and organs of fish (Leuciscus vorax, Chondrostoma regium, Carasobarbus luteus and Planiliza abu) in the two study stations and followed the following descending sequence: Leuciscus vorax > Carasobarbus luteus > Chondrostoma regium > Planiliza abu, and the results showed a difference in the accumulation of heavy elements in the tissues and organs of four types of fish, as the following descending order was followed by the liver> gills> muscles T, the accumulation of elements in which the annual rate and followed in descending order as follows: Zn> Cu> Cd. So the first station less polluted with three elements
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