Khniss

History

During Classical Antiquity, Khniss formed part of the agricultural and resource hinterland of Phoenician and Roman Ruspina. The area was prized for its high-grade sandstone, which was extracted in open quarries to build monuments across the Sahel, leaving visible marks on the local terrain. Following Tunisian independence in 1956, local civic leaders prioritized education. Teachers trained at Al-Zaytuna Mosque in Tunis, led by educators such as Abdelaziz El Sakli, established primary and secondary schooling networks in the city, producing a relatively high concentration of academics, physicians, engineers, magistrates, and administrators for its population size.

Geography

Khniss lies at the northern edge of an extensive marine depression of shallow seabed that stretches south to Cap Dimass in Bekalta, the site of ancient Thapsus. The adjacent sea is divided into two distinct zones: a sheltered, shallow lagoon with little wave action known locally as the "Dead Sea" (Bahr El Mayyit), and an outer zone with moderate currents and waves known as the "Live Sea" (Bahr El Hayy). The natural wetland of Sabkhet Khniss, contiguous with the Monastir salt pans, covers about 12 km². In parts of the shallow seabed, remains of Roman mosaics can be seen near the sewage treatment plant of Lamta-Sayyada. Local oral tradition refers to the area as "Al Maklouba" ("the overturned land"), an old myth attributing the altered coastal landscape to a major earthquake. In recent decades, the lagoon's ecological balance has been disrupted by a combination of poor planning and pollution. Infrastructure built to divert rainwater and protect the Monastir-Skanes International Airport and the nearby presidential summer residence, along with an artificial sand barrier known as Drina built across the natural drainage course, has restricted tidal exchange. Untreated and semi-treated wastewater from the Office National de l'Assainissement (ONAS) treatment plant serving Lamta and Sayyada has further degraded water quality, contributing to eutrophication, the regression of Posidonia oceanica seagrass meadows, and a decline in fish stocks. Despite this pressure, Sabkhet Khniss remains ecologically significant. During the 2025 breeding season, ornithological surveys confirmed two nesting pairs of the Red-crested pochard (Netta rufina), the first verified breeding record of the species in a Tunisian wetland.

Most-observed species

• Yellow-legged Gull

  Larus michahellis J.F.Naumann, 1840 · Aves
  151
• Greater Flamingo

  Phoenicopterus roseus Pallas, 1811 · Aves
  81
• Spanish Sparrow

  Passer hispaniolensis (Temminck, 1820) · Aves
  68
• Laughing Dove

  Spilopelia senegalensis (Linnaeus, 1766) · Aves
  67
• Spotless Starling

  Sturnus unicolor Temminck, 1820 · Aves
  61
• Slender-billed Gull

  Chroicocephalus genei (Brème, 1839) · Aves
  56
• Great Gray Shrike

  Lanius excubitor Linnaeus, 1758 · Aves
  46
• Rock Pigeon

  Columba livia J.F.Gmelin, 1789 · Aves
  45

Most recent

• M 4.3 — 2024-03-29
  24 km SE of Menzel Heurr, Tunisia
• M 4.2 — 2023-03-25
  14 km SW of Sidi el Hani, Tunisia
• M 4 — 2016-06-02
  22 km SE of Menzel Heurr, Tunisia
• M 4.4 — 2013-10-21
  3 km ESE of Bekalta, Tunisia
• M 4.4 — 2013-10-18
  6 km ENE of Seïada, Tunisia
• M 4.1 — 2013-03-25
  67 km NE of Bekalta, Tunisia