HydroBASINS lev08 watershed · #1080056580
Bassin · #1080056580
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 12 administrative regions : Ain El Berda, Bekkouche Lakhdar, Ben Azzouz, Berrahal, Bouati Mahmoud +7
Sub-basin area
521,1km²
Upstream area
521,1km²
Discharge
3,26m³/s
Mean elev.
101m
Administrative coverage
12 dept-equivalent regions (GADM L2)
- 151.1 km²29.0% of basin
- El EulmaAnnaba · Algeria145.2 km²27.9% of basin
- ChorfaAnnaba · Algeria51.5 km²9.9% of basin
- Bekkouche LakhdarSkikda · Algeria50.1 km²9.6% of basin
- Oued El AnebAnnaba · Algeria35.9 km²6.9% of basin
- 30.8 km²5.9% of basin
- Ben AzzouzSkikda · Algeria27.2 km²5.2% of basin
- Ain El BerdaAnnaba · Algeria16.9 km²3.2% of basin
4 moreFull L2 list
- El Bouni9.4 km² · 1.8%
- Bouati Mahmoud1.2 km² · 0.2%
- Seraidi1.0 km² · 0.2%
- Sidi Amar1.0 km² · 0.2%
2 intersecting protected areas
Lac de Fetzara
IUCN Not ReportedWetland of International Importance (Ramsar Site)
123.07 km² overlap
Complexe de zones humides de la plaine de Guerbès-Sanhadja
IUCN Not ReportedWetland of International Importance (Ramsar Site)
13.38 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
69 distinct species · 105 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 20 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 · #1080056580 : 18 espèces reliées par 17 interactions GloBI sur 2 types (connectance 8.9%, filtre Serrano α=0.2). 2 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°
18,0°C
Annual rain
696mm
Moisture idx (CMI)
-0,42
Runoff
213mm/an
PET
1 208mm
AET
583mm
Mean slope
3,8°
Water table
224cm
Forest
44%
Crops
72%
Urban
11%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)