Concentration of Three Heavy Metals in Five Tissues of Fish Barbus sharpeyi, Aspius vorax, Silurus triostegus and Mystus pelusius Collected from Euphrates River Thi Qar, Iraq

Kamil K. Fahad


The present study was conducted to investigate some heavy metals : Cd , Cu , and Zn in the tissue of fishes : Barbus sharpeyi Heckel , Aspius vorax Heckel , Silurus triostegus Heckel and Mystus pelusius Solander from the Euphrates River in the area between the town of Batha and the city of Nasiriyah . Samples were collected in July 2015. Where elements showed concentrations in the tissues of varying the four species of fish and Barbus sharpeyi as well as  high concentrations of cadmium from the rest of the fish careless and that the highest rate of cadmium record in the gills totaled 18.191ppm . As , it turns out that the Barbus sharpeyi fish showed significantly more than the accumulation of copper amounted to 58.7760 ppm and recorded the lowest concentrations in Mystus pelusius amounted to 13.550 ppm and the highest rate recorded in the liver was 77.951ppm . And, recording zinc big increase in the thickness of running totaled 146.4250 ppm followed Aspius vorax reached 66.7960 ppm and the highest rate recorded in gills totaled 114.022 ppm and less focus record in the muscles 52.599 ppm  .The results showed significant differences between the fish and the tissue. The findings current indicate high concentrations exceed determinants International approved by the FAO points out the diversity of sources of pollution with heavy and makes life good fish guides to study pollution recommend the establishment of an environmental monitoring system continuously.

Keywords: Cadmium, Copper and Zinc

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