In the wilaya of the Trarza
on the edge of the Atlantic Ocean, 175 km south of
70 km west of Rosso and about 15 km west of the Senegal River, the
coastal lagoon of Chat Tboul lies along the Atlantic, immediately
north of the
Parc National du
, around a former mouth of the
Senegal river. It is formed by plains and deposits of clays and
silt, and is surrounded by recent sand dunes.
Chat Tboul covers an area of 15,500 ha. It is the most important West African sub-Saharan habitat for large concentrations (more than 1 per cent of the world population) of specific groups of birds:
– up to 300 specimens
of the Black-necked grebe (Podiceps nigricollis) are recorded here
each year in January.
– the Slender-billed Gull (Larus genei) (maximum 800), Great White Pelican (Pelecanus onocrotalus) (maximum 1500), the Greater Flamingo, (Phoenicopterus ruber )(maximum 2300) and Pied Avocet (Recurvirostra avosetta)(maximum 5600).
– other bird concentrations
significant to the area are the sterns Black tern (Chlidonias niger)
(5000), and Sandwich terns (Sterna sandvicensis) (1200).
Biospheres Reserve Directory
Further Reading: IUCN Wetlands and Water Resources Programme http://www.iucn.org/dbtw-wpd/edocs/WTL-029.pdf