Abstracto

Bioaccumulation of Some Metal Elements and Micronutrients in the Gills and the Muscle of Sunfish (Lepomis gibbosus Linnaeus, 1758)

Kaoutar Houri, Latifa El Harrak, Hafida Jaghror, Mohammed Izougarhane, El Hassania Saad and Mohamed Fadli

With the increasing development of industrial activity and increasing the action of man in nature, the quality of the environment continues to deteriorate. Thus, the assessment of environmental quality, including the water is a necessity. In the present work we have evaluated the degree of metal contamination of gills and consumable muscle of Lepomis gibbosus Linnaeus (Fish, Centrarchidea). To do this the concentrations of seven elements (lead, cadmium, manganese, chromium, nickel, copper, zinc) were measured in three compartments “water-gill-muscle”. The study environment is Lake Fouarat which is near the city of Kenitra (Morocco). The results showed that for these metals, the concentrations recorded either in the gills or in consumable muscle or in both of themthe concentrations were higher than those recorded in the water. The degree of concentration of many metals varies depending on the organ type and / or depending on the size or age of the fish. The results further show that this bioaccumulative fish of metals could be used as a biological tool to assess the metallic quality of the environment. And, its fishing should be prohibited in areas metallically polluted.