HydroBASINS lev08 watershed · #1080088350
Bassin de oued mekkera
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 32 administrative regions : Ain Adden, Ain El Berd, Ain Kada, Ain Thrid, Alaimia +27
Sub-basin area
1 472,7km²
Upstream area
4 462,2km²
Discharge
1,55m³/s
Mean elev.
402m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oued Mekkera318 km²
- Bassin de Oued Mekkera243 km²
32 dept-equivalent regions (GADM L2)
- ChorfaMascara · Algeria158.3 km²10.7% of basin
- 127.3 km²8.6% of basin
- 127.2 km²8.6% of basin
- 126.7 km²8.6% of basin
- 101.3 km²6.9% of basin
- 88.2 km²6.0% of basin
- Ras Ain AmiroucheMascara · Algeria83.3 km²5.7% of basin
- 82.6 km²5.6% of basin
24 moreFull L2 list
- El Gaada76.9 km² · 5.2%
- Zahana61.7 km² · 4.2%
- Tassala56.6 km² · 3.8%
- Sidi Lahcene51.8 km² · 3.5%
- Ain El Berd51.0 km² · 3.5%
- Sig50.0 km² · 3.4%
- Sidi Brahim37.9 km² · 2.6%
- Sfisef37.5 km² · 2.5%
- Tilmouni37.1 km² · 2.5%
- Sidi Bel Abbes29.7 km² · 2.0%
- Ain Kada24.4 km² · 1.7%
- Alaimia16.9 km² · 1.2%
- Sidi Yacoub11.7 km² · 0.8%
- Sehala Thaoura10.8 km² · 0.7%
- Tafraoui8.2 km² · 0.6%
- Mustafa Ben Brahim6.7 km² · 0.5%
- Magtaa Douz2.7 km² · 0.2%
- Mekkedra2.2 km² · 0.1%
- Bouhanifia1.8 km² · 0.1%
- Sidi Dahou Zair1.5 km² · 0.1%
- Boufatis0.6 km² · 0.0%
- Tamzoura0.2 km² · 0.0%
- Sidi Ali Boussidi0.0 km² · 0.0%
- Oued Tlelat0.0 km² · 0.0%
1 intersecting protected areas
Marais de la Macta
IUCN Not ReportedWetland of International Importance (Ramsar Site)
47.78 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
359 distinct species · 728 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 mekkera : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 27 interactions GloBI sur 2 types (connectance 5.1%, filtre Serrano α=0.2). 4 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°
16,4°C
Annual rain
437mm
Moisture idx (CMI)
-0,58
Runoff
13mm/an
PET
1 048mm
AET
374mm
Mean slope
4,4°
Water table
476cm
Forest
0%
Crops
58%
Urban
2%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)