HydroBASINS lev08 watershed · #1080090170
Bassin de Oued Mellah
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 7 administrative regions : Chaabet El Ham, El Amria, El Malah, El Messaid, Hassi El Ghella +2
Sub-basin area
165,4km²
Upstream area
708,3km²
Discharge
0,41m³/s
Mean elev.
104m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Leham108 km²
- Bassin de Oued Mellah50 km²
7 dept-equivalent regions (GADM L2)
- 57.8 km²34.9% of basin
- 45.9 km²27.8% of basin
- 35.4 km²21.4% of basin
- 16.3 km²9.8% of basin
- 6.9 km²4.1% of basin
- 2.8 km²1.7% of basin
- 0.4 km²0.2% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
28 distinct species · 32 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 de Oued Mellah : 13 espèces reliées par 11 interactions GloBI sur 1 type (connectance 14.1%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
17,9°C
Annual rain
426mm
Moisture idx (CMI)
-0,59
Runoff
19mm/an
PET
1 037mm
AET
367mm
Mean slope
2,8°
Water table
373cm
Forest
0%
Crops
71%
Urban
9%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)