Sebkhet Halk Elmanzel et Oued Essed. 02/02/12; Sousse; 1,450 ha; 35°59'23"N 010°30'10"E. BirdLife IBA. A coastal saline lagoon that is representative of an almost natural sebkha, a characteristic wetland type in the semi-arid region of the Tunisian Sahel. It contributes significantly in maintaining the biodiversity characteristics of its biogeographical region as it serves as a habitat for biologically important species such as the vulnerable Marbled Teal Marmaronetta angustirostris. It is a wintering and nesting ground for birds and also an important source of food and a spawning ground for fishes such as Mugil sp. and Lisa sp. The site also supports several animal species throughout their life cycles. Fishery activities and aquaculture are carried out by the people of the area to sustain livelihoods, and water from the lagoon is used for animal rearing nearby. Strategic measures of erosion control have been put in place through the planting of forest trees (particularly Acacias) around the lake. The main hydrological value of the wetland is the absorption of flood waters, which are sometimes violent, from the large tributary wadis. Ramsar Site no. 2006. Most recent RIS information: 2011.