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| Manzala Lagoon | |
|---|---|
| Name | Manzala Lagoon |
| Other names | Lake Manzala |
| Location | Northeastern Egypt |
| Type | coastal lagoon |
| Inflow | Nile Delta |
| Outflow | Mediterranean Sea |
| Basin countries | Egypt |
| Area | historically up to 1,200 km² |
| Cities | Port Said, Damietta, Rashid, Al Mansurah |
Manzala Lagoon is a large coastal lagoon on the northeastern Nile Delta of Egypt along the Mediterranean Sea. Once among the largest productive brackish wetlands in the region, it has been heavily modified by engineering works, land reclamation, and urban expansion. The lagoon remains important for fisheries, regional transport links, and as habitat for migratory birds.
The lagoon lies between the Rosetta branch and Damietta branch of the Nile River near the cities of Port Said and Rashid, forming part of the Nile Delta complex. Historically connected to the Mediterranean Sea by multiple inlets, it receives freshwater inflow from distributaries of the Nile and drainage from agricultural lands surrounding Al Mansurah and Damietta Governorate. Engineering projects such as the construction of roads, causeways, and embankments associated with the Aswan High Dam era and national land reclamation programs have altered circulation, while proximity to the Suez Canal and Port Said influences salinity gradients. Seasonal fluctuations driven by Nile flood regimes and Mediterranean storms interact with tidal exchange to determine water levels and sediment deposition.
The lagoon historically supported extensive marshes, seagrass beds, and reedbeds dominated by Phragmites species, providing habitat for migratory birds on the African–Eurasian Flyway such as greater flamingo, grey heron, and Eurasian spoonbill. Fish assemblages included both marine and freshwater taxa, linking to species common in the eastern Mediterranean Sea and the Nile basin. The area offered nursery grounds for commercially important species increasingly affected by salinity shifts and invasive species from the Suez Canal corridor, a pathway linked to Lessepsian migration following the opening of the canal during the 19th century and subsequent expansions.
The lagoon and adjacent marshes feature in the long human history of the Nile Delta, with settlement and navigation recorded since Pharaonic times near Rashid and Damietta. During the Ottoman Empire and the Muhammad Ali dynasty period, the lagoon influenced trade routes and local economies, while 19th and 20th‑century infrastructure projects tied to modernizing rulers and colonial administrations affected shoreline and settlement patterns. The strategic coastline near Port Said saw activity during the Suez Crisis and World War II, linking lagoon dynamics to broader geopolitical events that shaped Egypt's modern history.
Fisheries in the lagoon have supplied local markets in Port Said, Damietta, and Cairo with mullet, bream, shrimps, and other species traditionally harvested by artisanal fishers using small boats and fixed nets. Aquaculture trials and pond culture initiatives have been promoted by agencies such as national fisheries institutes and international partners including the Food and Agriculture Organization to offset declining wild catches. The surrounding coastal plain supports intensive agriculture after land reclamation projects, supplying regional markets and interacting with lagoon water quality through drainage and nutrient loading.
Manzala has experienced habitat loss from conversion to agriculture, pollution from urban and agricultural runoff, and altered hydrology following the Aswan High Dam completion. Eutrophication, declining fish stocks, and encroachment by invasive species are compounded by coastal erosion, sea‑level rise, and industrial pressures linked to nearby ports and shipping lanes. Conservation responses have involved national designations, scientific assessments by universities and international bodies, and proposals for protected area status and wetland restoration in line with international agreements such as the Ramsar Convention and regional programmes addressing Mediterranean wetland conservation.
Academic institutions in Egypt and international research teams have monitored Manzala's water quality, benthic communities, and bird populations, producing time‑series that document salinity shifts, pollutant loads, and biodiversity change. Remote sensing studies using satellites and coastal mapping by organizations including the United Nations Environment Programme and regional research centers have informed modelling of sediment budgets and restoration scenarios. Ongoing monitoring integrates disciplines represented at institutions like Cairo University, Alexandria University, and specialized fisheries research centers.
Proximity to urban centers such as Port Said and Damietta limits large‑scale ecotourism, but local recreational fishing, birdwatching, and small‑boat excursions persist, attracting visitors from regional hubs including Alexandria and Cairo. Sustainable tourism proposals emphasize wetland education, community‑based guiding, and integration with cultural heritage sites in the Nile Delta to provide livelihoods while promoting conservation.
Category:Lagoons of Egypt Category:Nile Delta Category:Wetlands of Egypt