HydroBASINS lev08 watershed · #1080084360
Bassin de Seybouse
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 18 administrative regions : Ain Abid, Ain Makhlouf, Ain Rekada, Ben Badis, Ben Djerrah +13
Sub-basin area
1 107,5km²
Upstream area
1 107,6km²
Discharge
4,22m³/s
Mean elev.
781m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
18 dept-equivalent regions (GADM L2)
- 206.5 km²18.6% of basin
- Bordj SebbatGuelma · Algeria199.1 km²18.0% of basin
- 179.6 km²16.2% of basin
- Bou HamdaneGuelma · Algeria133.2 km²12.0% of basin
- Oued ZenatiGuelma · Algeria127.8 km²11.5% of basin
- Ain RekadaGuelma · Algeria115.8 km²10.5% of basin
- Ras El AgbaGuelma · Algeria34.3 km²3.1% of basin
- Hammam DebaghGuelma · Algeria32.2 km²2.9% of basin
10 moreFull L2 list
- Ouled Hebbaba28.1 km² · 2.5%
- Houari Boumediene27.9 km² · 2.5%
- Tamlouka14.3 km² · 1.3%
- Medjaz Ammar7.5 km² · 0.7%
- El Amiria0.9 km² · 0.1%
- Selaoua Announa0.4 km² · 0.0%
- Ain Makhlouf0.1 km² · 0.0%
- Roknia0.0 km² · 0.0%
- Ben Djerrah0.0 km² · 0.0%
- Zighoud Youcef0.0 km² · 0.0%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
433 distinct species · 2 852 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Seybouse : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 64 interactions GloBI sur 5 types (connectance 12.9%, filtre Serrano α=0.2). 10 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°
14,1°C
Annual rain
646mm
Moisture idx (CMI)
-0,46
Runoff
126mm/an
PET
1 203mm
AET
544mm
Mean slope
6,9°
Water table
453cm
Forest
12%
Crops
84%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)