GEO ENVIRONMENTAL STUDIES ON LAGOON MANZALA, EGYPT

Document Type : Original Article

Authors

1 Environmental Sciences Department, Factilty of Science at Dam letta Mansoura University, Damietta, Egypt.

2 National Institute of Oceanography and Fisheries, Academy of Scientific Research and Technology, Egypt.

Abstract

Over the last few decades, lagoon Manzala has undergone dramatic environmental changes. The present study gives a clue about the present situation of the lagoon. The distribution of organic matter, Cu, Zn,Pb and Cd metal ions in surficial bottom sediments is discussed. Copper and Zinc ions are within the global limit except the northern portion around Port
Said that shows a relatively higher copper concentration. Cadmium and Lead ions are higher than the global standard values. Increased discharges of agricultural and industrial wastes may be an important factor underlying
these higher values, where the superficial sediments of the study drains show highly enrichment than the global standard values. Human activities that have impacts on the lagoon should be revised in order to conserve the lagoon as a natural resource site. 

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Egyptian Journal of Aquatic Biology and Fisheries
Volume 3, Issue 4
June 1999
Pages 347-367

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