OCCURRENCE` AND DISTRIBUTION OF SOME HEAVY METALS IN WATER AND SOME FISHES IN THE GULF OF SUEZ | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Article 9, Volume 3, Issue 3, June 1999, Pages 117-135 | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.1999.3431 | ||
| Author | ||
| Mohamed Hamed | ||
| The National Institute of Oceanography and Fisheries, Suez and Aqaba Gulfs Branch, Egyqpt | ||
| Abstract | ||
| Concentration and distribution of dissolved and particulate metals were studied in samples of water and fishes from fifteen locations in the Gulf of Suez during December, 1998. The concentration of dissolved heavy metals ranged between 0.62-4.22, 1.45-9.36, 0.31-2.35, 0.177-1.369, 0.139-1.506, 0.412-3.520, 0.225-0.981 and 0.386-2.901 g/l for Cu, Zn, Pb, Cd, Cr, Ni, Co and Mn respectively. In the same respect, the corresponding values for particulate metals were 0.23-2.17, 0.51-5.33, 0.12-1.64, 0.047-0.514, 0.112-1.075, 0.191-1.650, 0.103-0.728 and 0.132-1.876 g/l. The bioaccumulation of some metals in the edible muscles and organs (liver, gills, gonad, bone, skin and kidney) of some economic fishes in the Gulf of Suez namely Saurida undosquamis, Pomadasys stridens and Sardinella gibbosa was studied. The present data indicate that Cu, Cr and Mn concentrations exhibited their highest level in liver, zinc in gonad, Pb and Cd in bone, while Co and Ni in gills. The highest accumulated metals were Zn and Mn, while the lowest one was Cd. The accumulation was more pronounced in Saurida undosquamis than Pomadasys stridens and Sardinella gibbosa. The industrial run off was the main responsible factor for contributing most metals contamination. The area receives considerable amount of effluents from many industries such as petrochemical factories and refineries especially at the northern part of Suez Bay. | ||
| Keywords | ||
| Heavy metals; fish; water; Gulf of Suez | ||
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