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ISSN: 2375-3854

International Journal of Ecological Science and Environmental Engineering

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Hard Coral Tissue as Pollutant Indicator for Heavy Metals at Northern Hurghada, Red Sea, Egypt

International Journal of Ecological Science and Environmental Engineering
Vol.5 , No. 1, Publication Date: Jan. 8, 2018, Page: 8-15

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Authors

[1]	Tarek Abdel-Aziz Ahmed Mohammed, Department of Aquaculture, National Institute of Oceanography and Fisheries, Hurghada, Red Sea, Egypt.
[2]	Mohamed Sedeek El-Deek, Department of Environment, National Institute of Oceanography and Fisheries, Hurghada, Red Sea, Egypt.
[3]	Mohammed Mahmoud Abbass Kotb, Department of Marine Sciences, Suez Canal University, Ismailia, Egypt.
[4]	Abdel-Fattah Ali Ghobashy, Department of Zoology, Suez Canal University, Ismailia, Egypt.

Abstract

The total organic matter (TOM) in corals is higher than in the sediment. The highest mean of TOM content of the corals A. humilis and S. pistillata was recorded in summer (7.04% and 5.27% respectively) while in the sediment it was low (3.15%) in the same season. The heavy metals (Fe, Cu, Ni, Cd and Pb) were measured in A. humilis, S. pistillata and the underlying sediments. However, A. humilis and S. pistillata have the great ability to concentrate Ni more than the sediment. The main reasons for the Ni increase are the anthropogenic impacts from boat mooring, desalination plants and anti-fouling paints. Cd has a great tendency to accumulate in the coral tissue and it reached to the maximum normal limit in A. humilis during autumn. Iron, copper and lead contents in both coral species show sub-equal values and in the range recorded by the other investigators in other localities. The increase of TOM in corals than sediment may cause in increase of Ni, Cu, and Pb in corals with a higher concentration than the underlying sediment.

Keywords

Acropora humilis, Stylophora pistillata, Total Organic Matter, Heavy Metals

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