HydroBASINS lev08 watershed · #1080108250
Bassin · #1080108250
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 4 administrative regions : Douz, Hamma, Matmata, Matmata Nouvelle
Sub-basin area
383,8km²
Upstream area
1 792,2km²
Discharge
4,9m³/s
Mean elev.
188m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued El Leguene375 km²
- Bassin de Oued Zmerten40 km²
4 dept-equivalent regions (GADM L2)
- 301.5 km²78.6% of basin
- 41.0 km²10.7% of basin
- 37.9 km²9.9% of basin
- 3.4 km²0.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
69 distinct species · 352 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin · #1080108250 : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 3 types (connectance 7.4%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
19,9°C
Annual rain
147mm
Moisture idx (CMI)
-0,90
Runoff
83mm/an
PET
1 448mm
AET
125mm
Mean slope
1,0°
Water table
277cm
Forest
0%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)