GEO ENVIRONMENTAL STUDIES ON LAGOON MANZALA, EGYPT | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 17, Volume 3, Issue 4, June 1999, Page 347-367 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.1999.3455 | ||||
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| Authors | ||||
| Mohammad Abdel Gaul1; Mohammad Hamed2 | ||||
| 1Environmental Sciences Department, Factilty of Science at Dam letta Mansoura University, Damietta, Egypt. | ||||
| 2National 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. | ||||
| Keywords | ||||
| Geo- Environmental; Lagoon Manzala | ||||
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