HydroBASINS lev08 watershed · #1080030320
Bassin de Oued Mekhaissya
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 15 administrative regions : Aghlal, Ain Kihel, Ain Temouchent, Ain Tolba, Beni Saf +10
Sub-basin area
328,7km²
Upstream area
328,7km²
Discharge
0,03m³/s
Mean elev.
231m
Administrative coverage
15 dept-equivalent regions (GADM L2)
- 63.9 km²19.4% of basin
- 55.8 km²17.0% of basin
- 49.3 km²15.0% of basin
- 47.1 km²14.3% of basin
- 41.6 km²12.6% of basin
- 19.6 km²6.0% of basin
- 18.6 km²5.7% of basin
- 5.9 km²1.8% of basin
7 moreFull L2 list
- Sebbaa Chioukh5.2 km² · 1.6%
- Ain Temouchent4.3 km² · 1.3%
- Bensekrane4.2 km² · 1.3%
- Emir Abdelkader0.9 km² · 0.3%
- Aghlal0.5 km² · 0.2%
- Ouled Boudjemaa0.1 km² · 0.0%
- Oulhaca El Gheraba0.1 km² · 0.0%
1 intersecting protected areas
Île de Rachgoun
IUCN Not ReportedWetland of International Importance (Ramsar Site)
0.42 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
111 distinct species · 165 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Mekhaissya : 26 espèces reliées par 24 interactions GloBI sur 4 types (connectance 5.9%, filtre Serrano α=0.2). 3 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
458mm
Moisture idx (CMI)
-0,59
Runoff
22mm/an
PET
1 104mm
AET
391mm
Mean slope
5,5°
Water table
596cm
Forest
0%
Crops
81%
Urban
11%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)