HydroBASINS lev08 watershed · #1080090370
Bassin de واد الكراطسية
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 21 administrative regions : Bendaoud, Bou Saada, Chellal, Djebel Messaad, El Ach +16
Sub-basin area
2 723,1km²
Upstream area
11 637,9km²
Discharge
24,14m³/s
Mean elev.
592m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Maittar1815 km²
- Bassin de Oued el Ham743 km²
21 dept-equivalent regions (GADM L2)
- 356.4 km²13.1% of basin
- 325.6 km²12.0% of basin
- Hammam DalaaM'Sila · Algeria282.2 km²10.4% of basin
- El HouamedM'Sila · Algeria281.8 km²10.3% of basin
- 254.6 km²9.3% of basin
- Ouled MansourM'Sila · Algeria214.3 km²7.9% of basin
- 178.7 km²6.6% of basin
- 171.1 km²6.3% of basin
13 moreFull L2 list
- Bou Saada127.9 km² · 4.7%
- Tarmount126.1 km² · 4.6%
- Djebel Messaad115.5 km² · 4.2%
- Ouled Madhi110.8 km² · 4.1%
- Khatouti Sed Eldjir101.8 km² · 3.7%
- El Ach34.0 km² · 1.2%
- M'Sila22.6 km² · 0.8%
- Ouanougha7.6 km² · 0.3%
- El M'Hir5.2 km² · 0.2%
- Mansoura3.3 km² · 0.1%
- Bendaoud1.8 km² · 0.1%
- Ksour1.2 km² · 0.0%
- Hamri0.5 km² · 0.0%
2 intersecting protected areas
Chott el Hodna
IUCN Not ReportedWetland of International Importance (Ramsar Site)
1137.52 km² overlap
Atlas Saharien
IUCN Not ApplicableCultural Park
929.56 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
257 distinct species · 412 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 الكراطسية : 22 espèces reliées par 72 interactions GloBI sur 5 types (connectance 11.4%, filtre Serrano α=0.2). 14 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°
15,7°C
Annual rain
240mm
Moisture idx (CMI)
-0,81
Runoff
43mm/an
PET
1 245mm
AET
207mm
Mean slope
2,6°
Water table
338cm
Forest
0%
Crops
2%
Urban
2%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)