HydroBASINS lev08 watershed · #1080030940
Bassin de واد جن جن
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 17 administrative regions : Ain-Sebt, Babor, Beni-Aziz, Boudria Beniyadjis, Chahna +12
Sub-basin area
526,7km²
Upstream area
526,8km²
Discharge
7,09m³/s
Mean elev.
754m
Administrative coverage
17 dept-equivalent regions (GADM L2)
- 139.0 km²26.4% of basin
- Boudria BeniyadjisJijel · Algeria77.7 km²14.7% of basin
- 65.3 km²12.4% of basin
- 60.5 km²11.5% of basin
- 41.4 km²7.9% of basin
- 35.6 km²6.8% of basin
- Emir AbdelkaderJijel · Algeria35.5 km²6.7% of basin
- Selma BenziadaJijel · Algeria27.0 km²5.1% of basin
9 moreFull L2 list
- Serdj-El-Ghoul23.1 km² · 4.4%
- Ziama Mansouria11.6 km² · 2.2%
- Taher5.8 km² · 1.1%
- Tassadane Haddada2.1 km² · 0.4%
- Chahna0.9 km² · 0.2%
- Ain-Sebt0.7 km² · 0.1%
- Minar Zarza0.4 km² · 0.1%
- Beni-Aziz0.1 km² · 0.0%
- Tessala Lamtai0.0 km² · 0.0%
1 intersecting protected areas
Babor-Tababort
IUCN IINational Park
73.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
457 distinct species · 2 421 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 واد جن جن : 30 espèces reliées par 129 interactions GloBI sur 5 types (connectance 14.3%, filtre Serrano α=0.2). 13 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°
13,8°C
Annual rain
902mm
Moisture idx (CMI)
-0,16
Runoff
275mm/an
PET
1 069mm
AET
636mm
Mean slope
15,9°
Water table
661cm
Forest
74%
Crops
39%
Urban
10%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)