HydroBASINS lev08 watershed · #1080030960
Bassin · #1080030960
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 9 administrative regions : Bordj Tahar, Boussif Ouled Askeur, Chahna, Chekfa, Djemila +4
Sub-basin area
244,9km²
Upstream area
244,9km²
Discharge
3,02m³/s
Mean elev.
475m
Administrative coverage
9 dept-equivalent regions (GADM L2)
- 84.1 km²34.3% of basin
- 44.7 km²18.2% of basin
- Boussif Ouled AskeurJijel · Algeria40.9 km²16.7% of basin
- 33.0 km²13.5% of basin
- 19.4 km²7.9% of basin
- Tessala LamtaiMila · Algeria14.6 km²6.0% of basin
- Bordj TaharJijel · Algeria6.7 km²2.7% of basin
- 0.9 km²0.4% of basin
1 moreFull L2 list
- Emir Abdelkader0.4 km² · 0.2%
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
186 distinct species · 441 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 · #1080030960 : 32 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 5 types (connectance 12.1%, filtre Serrano α=0.2). 9 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°
15,5°C
Annual rain
991mm
Moisture idx (CMI)
-0,08
Runoff
312mm/an
PET
1 074mm
AET
649mm
Mean slope
14,9°
Water table
619cm
Forest
92%
Crops
5%
Urban
25%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)