HydroBASINS lev08 watershed · #1080030450
Bassin de Chelif
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 13 administrative regions : Ain Boudinar, Ain Tedles, Benabdelmalek Ramdane, Hadjadj, Kheiredine +8
Sub-basin area
463,4km²
Upstream area
44 435,7km²
Discharge
54,37m³/s
Mean elev.
168m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Chelif1616 km²
- Bassin de Oued Mina179 km²
13 dept-equivalent regions (GADM L2)
- 113.2 km²24.4% of basin
- Sidi BelattarMostaganem · Algeria83.6 km²18.0% of basin
- Oued El KheirMostaganem · Algeria69.0 km²14.9% of basin
- 65.9 km²14.2% of basin
- Ain TedlesMostaganem · Algeria30.7 km²6.6% of basin
- Ain BoudinarMostaganem · Algeria23.3 km²5.0% of basin
- Benabdelmalek RamdaneMostaganem · Algeria23.2 km²5.0% of basin
- Sidi KhettabRelizane · Algeria22.6 km²4.9% of basin
5 moreFull L2 list
- Hadjadj13.6 km² · 2.9%
- Mostaganem10.2 km² · 2.2%
- Safsaf7.1 km² · 1.5%
- Souaflia0.8 km² · 0.2%
- Kheiredine0.3 km² · 0.1%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
126 distinct species · 237 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 46 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 Chelif : 37 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 5 types (connectance 5.6%, 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°
17,5°C
Annual rain
389mm
Moisture idx (CMI)
-0,60
Runoff
31mm/an
PET
983mm
AET
336mm
Mean slope
5,9°
Water table
514cm
Forest
0%
Crops
24%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)