Response of Mollusk Assemblages to Environmental Conditions: A Case Study from the Burullus Lagoon,Egypt |
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| Authors: | Orabi H Orabi Abd El-Monsef A El-Badry Ikhlas Alhejoj |
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| Institution: | 1.Faculty of Science, Geology Department,Menoufia University,Al Minufya,Egypt;2.National Institute of Oceanography and Fisheries,Aswan Research Station,Aswan,Egypt;3.Department of Geology,the University of Jordan,Amman,Jordan |
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| Abstract: | The identified mollusks from the Burullus lagoon of Egypt (Eastern Mediterranean) are represented by four bivalve species and four gastropod species. Sources of heavy metals pollution in the Burullus lagoon include phosphate fertilizers, sewage and oil spills from fishing boats.The Cerastoderma glaucum species has a wide distribution in the central part of the studied area with satisfying criteria required for good bio-monitors of pollution. High concentrations of heavy metals are found in water, at the eastern side of the lagoon, while low concentrations were detected in the central and western sides of the lagoon. Pirenella conica constitutes the total gastropods assemblages, reflecting this species tolerance to the high concentration of heavy metals. Meanwhile, the total pelecypods in bottom lagoon sediments are completely absent in the eastern parts of the lagoon, which may be due to the sensitivity of pelecypods to the accumulation of heavy metals. |
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