HydroBASINS lev08 watershed · #1080045860
Bassin de Oued Besbes
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 : Ain El Arbaa, Ain El Berd, Ain Thrid, Bir El Djir, Bou Zedjar +28
Sub-basin area
2 287,8km²
Upstream area
2 288km²
Discharge
2,42m³/s
Mean elev.
223m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
33 dept-equivalent regions (GADM L2)
- MisserghinOran · Algeria428.0 km²18.7% of basin
- 230.4 km²10.1% of basin
- 223.4 km²9.8% of basin
- 178.7 km²7.8% of basin
- 109.8 km²4.8% of basin
- 100.1 km²4.4% of basin
- 90.3 km²3.9% of basin
- Oued TlelatOran · Algeria85.0 km²3.7% of basin
25 moreFull L2 list
- El Amria80.5 km² · 3.5%
- Ain El Arbaa70.8 km² · 3.1%
- El Kerma63.9 km² · 2.8%
- Tassala62.2 km² · 2.7%
- Sidi Chahmi60.9 km² · 2.7%
- El Braya56.1 km² · 2.5%
- Es Senia50.2 km² · 2.2%
- Sidi Boumediene49.8 km² · 2.2%
- El Gaada44.3 km² · 1.9%
- Mekkedra41.7 km² · 1.8%
- Ain Thrid40.6 km² · 1.8%
- Ain El Berd33.2 km² · 1.4%
- Bir El Djir32.7 km² · 1.4%
- Oran32.4 km² · 1.4%
- Sehala Thaoura29.3 km² · 1.3%
- El Messaid28.4 km² · 1.2%
- Hassi El Ghella14.6 km² · 0.6%
- Boufatis10.7 km² · 0.5%
- Hassi Bounif10.7 km² · 0.5%
- Bou Zedjar10.2 km² · 0.4%
- Hassasna8.7 km² · 0.4%
- Oggaz5.1 km² · 0.2%
- Hassi Ben Okba4.9 km² · 0.2%
- Ouled Boudjemaa0.3 km² · 0.0%
- Bousfer0.0 km² · 0.0%
1 intersecting protected areas
Grande Sebkha d'Oran
IUCN Not ReportedWetland of International Importance (Ramsar Site)
595.63 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 109 distinct species · 2 804 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 45 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 Besbes : 36 espèces reliées par 67 interactions GloBI sur 6 types (connectance 6.8%, filtre Serrano α=0.2). 9 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
431mm
Moisture idx (CMI)
-0,56
Runoff
11mm/an
PET
990mm
AET
371mm
Mean slope
3,6°
Water table
342cm
Forest
2%
Crops
60%
Urban
11%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)