HydroBASINS lev08 watershed · #1080030760
Bassin de Oued Isser
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 31 administrative regions : Ammal, Aomar, Baghlia, Beni Amrane, Bordj Menaiel +26
Sub-basin area
870,8km²
Upstream area
4 132,8km²
Discharge
21,1m³/s
Mean elev.
314m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Oued Soufflat437 km²
- Bassin de Oued Isser278 km²
31 dept-equivalent regions (GADM L2)
- 92.9 km²10.7% of basin
- 92.5 km²10.6% of basin
- 76.4 km²8.8% of basin
- 67.2 km²7.7% of basin
- 56.8 km²6.5% of basin
- 54.4 km²6.2% of basin
- 53.6 km²6.2% of basin
- 43.4 km²5.0% of basin
23 moreFull L2 list
- Leghata42.2 km² · 4.8%
- Bouderbala40.6 km² · 4.7%
- Boukram37.4 km² · 4.3%
- Naciria34.1 km² · 3.9%
- Maala25.9 km² · 3.0%
- Si Mustapha24.7 km² · 2.8%
- M'Kira24.6 km² · 2.8%
- Tizi-Ghenif23.1 km² · 2.6%
- Djinet21.2 km² · 2.4%
- Souk El Had16.5 km² · 1.9%
- Timezrit12.5 km² · 1.4%
- Zbarbar|El Isseri12.1 km² · 1.4%
- Thenia11.1 km² · 1.3%
- Tablat3.4 km² · 0.4%
- Bouzegza Keddara2.2 km² · 0.2%
- Ouled Aissa1.2 km² · 0.1%
- Draa El Mizan0.6 km² · 0.1%
- Zemmouri0.4 km² · 0.0%
- Aomar0.1 km² · 0.0%
- Tidjelabine0.0 km² · 0.0%
- Baghlia0.0 km² · 0.0%
- Larbatache0.0 km² · 0.0%
- El Kharrouba0.0 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
402 distinct species · 893 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Isser : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 69 interactions GloBI sur 4 types (connectance 12.3%, filtre Serrano α=0.2). 7 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°
17,0°C
Annual rain
794mm
Moisture idx (CMI)
-0,30
Runoff
216mm/an
PET
1 142mm
AET
629mm
Mean slope
10,9°
Water table
553cm
Forest
59%
Crops
67%
Urban
21%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)