HydroBASINS lev08 watershed · #1080031040
Bassin de Oued Safsaf واد صفصاف
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 24 administrative regions : Ain Bouziane, Ain Zouit, Azzaba, Ben Badis, Beni Bechir +19
Sub-basin area
1 164,4km²
Upstream area
1 164,4km²
Discharge
9,31m³/s
Mean elev.
342m
Administrative coverage
24 dept-equivalent regions (GADM L2)
- Ouled HebbabaSkikda · Algeria169.4 km²14.5% of basin
- Zighoud YoucefConstantine · Algeria116.7 km²10.0% of basin
- Ramdane DjamelSkikda · Algeria114.3 km²9.8% of basin
- 99.6 km²8.6% of basin
- Salah BouchaourSkikda · Algeria94.4 km²8.1% of basin
- El HarrouchSkikda · Algeria94.0 km²8.1% of basin
- Emjez EdchichSkikda · Algeria77.4 km²6.6% of basin
- El HadaiekSkikda · Algeria50.9 km²4.4% of basin
16 moreFull L2 list
- Bouchetata47.9 km² · 4.1%
- El Ghedir47.6 km² · 4.1%
- Beni Bechir43.4 km² · 3.7%
- Es Sebt43.1 km² · 3.7%
- Hamadi Krouma36.2 km² · 3.1%
- Sidi Mezghiche35.4 km² · 3.0%
- Skikda32.8 km² · 2.8%
- Ain Bouziane29.7 km² · 2.6%
- Azzaba13.9 km² · 1.2%
- Ain Zouit9.3 km² · 0.8%
- Filfila2.9 km² · 0.2%
- Ben Badis2.4 km² · 0.2%
- Bou Hamdane1.9 km² · 0.2%
- Roknia1.0 km² · 0.1%
- Bordj Sebbat0.2 km² · 0.0%
- Djendel Saadi Mohamed0.2 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
640 distinct species · 2 610 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Safsaf واد صفصاف : 21 espèces reliées par 47 interactions GloBI sur 3 types (connectance 12.4%, 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°
16,3°C
Annual rain
760mm
Moisture idx (CMI)
-0,33
Runoff
218mm/an
PET
1 137mm
AET
612mm
Mean slope
9,1°
Water table
497cm
Forest
31%
Crops
68%
Urban
17%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)