HydroBASINS lev08 watershed · #1080084060
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 10 administrative regions : Djebahia, El Mokrani|El Madjen, Guerrouma, Kadiria, Maala +5
Sub-basin area
278,1km²
Upstream area
2 824,8km²
Discharge
11,79m³/s
Mean elev.
544m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Malah1125 km²
- Bassin de Oued Isser525 km²
10 dept-equivalent regions (GADM L2)
- 57.4 km²20.6% of basin
- Zbarbar|El IsseriBouira · Algeria46.4 km²16.7% of basin
- 41.5 km²14.9% of basin
- 38.1 km²13.7% of basin
- 32.5 km²11.7% of basin
- 29.1 km²10.5% of basin
- 20.9 km²7.5% of basin
- El Mokrani|El MadjenBouira · Algeria5.3 km²1.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
35 distinct species · 52 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 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 : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 8 interactions GloBI sur 4 types (connectance 12.1%, 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°
15,8°C
Annual rain
691mm
Moisture idx (CMI)
-0,39
Runoff
176mm/an
PET
1 133mm
AET
581mm
Mean slope
12,9°
Water table
620cm
Forest
33%
Crops
37%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)