HydroBASINS lev08 watershed · #1080087360
Bassin de Oued Messiana
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 22 administrative regions : Ain Touila, Babar, Bedjene, Belala, Bhir El Chergui +17
Sub-basin area
1 834,5km²
Upstream area
1 834,5km²
Discharge
1,91m³/s
Mean elev.
1 014m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
22 dept-equivalent regions (GADM L2)
- 214.2 km²11.7% of basin
- 200.2 km²10.9% of basin
- Ain TouilaKhenchela · Algeria192.0 km²10.5% of basin
- 183.8 km²10.0% of basin
- 178.0 km²9.7% of basin
- 172.7 km²9.4% of basin
- 153.2 km²8.4% of basin
- 138.6 km²7.6% of basin
14 moreFull L2 list
- Ouled Rechache117.7 km² · 6.4%
- El Djazia94.4 km² · 5.1%
- Bhir El Chergui58.4 km² · 3.2%
- Morsot46.6 km² · 2.5%
- Zorg26.7 km² · 1.5%
- El Ouinet26.4 km² · 1.4%
- Oued Nini12.9 km² · 0.7%
- El Mezeraa7.8 km² · 0.4%
- Bir Dheb4.5 km² · 0.2%
- Ensigha3.7 km² · 0.2%
- Bir Mokkadem2.5 km² · 0.1%
- Terraguelt0.3 km² · 0.0%
- Babar0.1 km² · 0.0%
- El Ogla0.1 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
78 distinct species · 172 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 22 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 Messiana : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 2 types (connectance 9.5%, 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°
13,6°C
Annual rain
427mm
Moisture idx (CMI)
-0,66
Runoff
31mm/an
PET
1 254mm
AET
364mm
Mean slope
2,7°
Water table
406cm
Forest
1%
Crops
22%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)