Zribet El Werda is located at the south-south-east part of Chargui island in Kerkennah Archipelago, just outside the village of El Ataya. The whole area was included in the national wetlands' inventory under the code 169 (Hughes et Al, 1997). It is coastal saltmarsh with an elevation that ranges from 0 to 2.5m above sea level (Topography Map). It gets covered in sea water whenever the tide is advanced or the wind is strong. Freshwater comes entirely from precipitations during autumn and winter and it stagnates in the area for weeks at a time. The wetland is limited on the north-east by the main road that takes directly to the fishing port which is located at the south-eastern edge of the saltmarsh. Next to the port and inside the wetland, a new guard station has been built last summer according to the locals.
50 to 75% of the system is covered in vegetation and the dominant flora specie is Sarcocornia fruticosa (L.) A. J. Scott. At the southern part of the wetland, near the port, 2 other genera are present: Scirpus and Phragmites.
[Field visit: Th. Giannakakis, K. Charfi, I. Rais & M. Ouali 05/2018]
Wetland data
Basic information
Wetland location:
Marine/Coastal
Wetland type:
Natural
Wetland area:
0.0 Ha
Hydrological interaction:
-
Water salinity:
Salty (> 18.0 g/l)
Type of fresh water input:
Catchment area (precipitation)
Geographic information
Governorate:
Sfax
Island:
Chargui
Municipality:
Kerkennah
Longitude:
11.296388 East
Latitude:
34.728994 North
Ramsar wetland type
Type
Coverage (%)
A -- Permanent shallow marine waters in most cases less than six metres deep at low tide; includes sea bays and straits
< 5
H -- Intertidal marshes; includes salt marshes, salt meadows, saltings, raised salt marshes; includes tidal brackish and freshwater marshes
> 95
Property status
Public
Protection statuses
Protection status category
Protection status subcategory
Area's name
Code
Coverage area (%)
Legislation
International Protection
Ramsar Site
Kerkennah
100
Ramsar Convention
National Protection
Sensitive areas
Kerkennah
100
L. n° 94-122, 28/11/1994; D. 98-2092, 28/10/1998 (Jort n°88)
Important bird areas
IBA code
Site name
Coverage (%)
References
TN026
Kerkennah Islands
100
Ecosystem services
Type of ecosystem service
Ecosystem service
Scale of Βenefit (%)
Importance
Regulatory services
Erosion regulation
Regulatory services
Flood hazard regulation
Supporting services
Provision of habitat
Regulatory services
Storm hazard regulation
Activities on wetland
Activity
Intensity
210 = Professional fishing
High
Activities on catchment area
Activity
Intensity
210 = Professional fishing
High
Habitat types
Type
Coverage (%)
1440 Salt pans
1510 * Mediterranean salt steppes (Limonietalia)
119B Soft substrata with vegetation
Vegetation types
Type
Coverage (%)
Halophytic
76 - 95
Images
WWF Tunisia. (2019). TunIsWet – Database of the Tunisian island wetlands. Updated: 04.2024