10.4 Land and water management

The Tunis lagoon lost more than 15 percent of its surface after the restoration works implemented during the 1980s with the aim of improving water circulation inside the lagoon, decreasing the surface of the lake and combating eutrophication phenomena.

To improve the water circulation within the Tunis lagoon, dredging works were done according to a water circulation model. which also included the construction of a 10 km bridge linking the bordigue to the Chekly Island situated inside the lagoon on its northwest part. In the frame of water management in the Ichkeul lake, a lock gate was installed, including the settlement of facilities securing juveniles entry into the lagoon, especially eels. As far as other lagoons are concerned,
the main maintenance works affect the bordigue, especially for the El Bibane lagoon where old fishing fixed gear is frequently damaged.