HydroBASINS lev08 watershed · #1080030710
Bassin de Oued Keddara
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 33 administrative regions : Ammal, Beni Amrane, Bordj El Kiffan, Bouderbala, Boudouaou +28
Sub-basin area
849,7km²
Upstream area
849,7km²
Discharge
0,24m³/s
Mean elev.
218m
Administrative coverage
33 dept-equivalent regions (GADM L2)
- 82.9 km²9.8% of basin
- 70.7 km²8.3% of basin
- 56.8 km²6.7% of basin
- 54.5 km²6.4% of basin
- 51.8 km²6.1% of basin
- 43.5 km²5.1% of basin
- 43.0 km²5.1% of basin
- 43.0 km²5.1% of basin
25 moreFull L2 list
- Tidjelabine42.0 km² · 4.9%
- Rouiba41.4 km² · 4.9%
- Thenia32.2 km² · 3.8%
- Reghaia26.8 km² · 3.2%
- Souhan26.2 km² · 3.1%
- Ouled Moussa26.1 km² · 3.1%
- Corso21.9 km² · 2.6%
- Djebabra21.5 km² · 2.5%
- Haraoua21.2 km² · 2.5%
- Hammadi19.8 km² · 2.3%
- Boumerdes18.5 km² · 2.2%
- Deux Bassins13.6 km² · 1.6%
- Boudouaou El Bahri13.5 km² · 1.6%
- Dar El Beida13.2 km² · 1.6%
- Ouled Hedadj11.9 km² · 1.4%
- Leghata8.3 km² · 1.0%
- Beni Amrane7.4 km² · 0.9%
- Bouderbala5.9 km² · 0.7%
- Meftah5.4 km² · 0.6%
- Guerrouma3.7 km² · 0.4%
- Si Mustapha2.7 km² · 0.3%
- Ammal1.1 km² · 0.1%
- Kouba0.0 km² · 0.0%
- Les Eucalyptus0.0 km² · 0.0%
- Souk El Had0.0 km² · 0.0%
1 intersecting protected areas
Réserve Naturelle du Lac de Réghaïa
IUCN Not ReportedWetland of International Importance (Ramsar Site)
2.64 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
885 distinct species · 5 244 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Keddara : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 53 interactions GloBI sur 4 types (connectance 7.2%, filtre Serrano α=0.2). 8 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°
17,2°C
Annual rain
734mm
Moisture idx (CMI)
-0,36
Runoff
207mm/an
PET
1 140mm
AET
605mm
Mean slope
7,4°
Water table
410cm
Forest
44%
Crops
58%
Urban
49%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)