HydroBASINS lev08 watershed · #1080029810
Bassin de Oued Sghir
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 4 administrative regions across 2 countries : Ceuta, Fahs Anjra, Tanger-Assilah, Tétouan
Sub-basin area
724,6km²
Upstream area
724,6km²
Discharge
0,37m³/s
Mean elev.
169m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 484.8 km²66.9% of basin
- 188.1 km²26.0% of basin
- 20.9 km²2.9% of basin
- 0.7 km²0.1% of basin
13 intersecting protected areas
Réserve de Biosphère Intercontinentale de la Méditerranée (RBIM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
261.89 km² overlap
Tétouan - Mdiq - Fnideq
IUCN Not ApplicablePermanent Hunting Reserve
83.69 km² overlap
Jbel Moussa
IUCN Not ApplicableBiological and Ecological Interest Site
34.58 km² overlap
Jbel Moussa
IUCN Not ApplicablePermanent Hunting Reserve
31.44 km² overlap
Lagune et barrage de Smir
IUCN Not ReportedWetland of International Importance (Ramsar Site)
8.37 km² overlap
Calamocarro-Benzú
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.02 km² overlap
Calamocarro-Benzú
IUCN Not ReportedSite of Community Importance (Habitats Directive)
6.02 km² overlap
Koudiet Taifour
IUCN Not ApplicableBiological and Ecological Interest Site
5.66 km² overlap
Littoral de Jbel Moussa
IUCN Not ReportedWetland of International Importance (Ramsar Site)
5.04 km² overlap
4 more protected areassorted by overlap area
Zona marítimo-terrestre del Monte Hacho
IUCN Not ReportedSite of Community Importance (Habitats Directive)
2.07 km² overlap
Tanger - Tahaddart - Assilah
IUCN Not ApplicablePermanent Hunting Reserve
1.38 km² overlap
Lagune (Marais) de Smir
IUCN Not ApplicableBiological and Ecological Interest Site
1.28 km² overlap
Acantilados del Monte Hacho
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.28 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 387 distinct species · 194 996 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Sghir : 22 espèces reliées par 52 interactions GloBI sur 2 types (connectance 12.0%, filtre Serrano α=0.2). 8 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°
17,3°C
Annual rain
760mm
Moisture idx (CMI)
-0,32
Runoff
259mm/an
PET
1 122mm
AET
589mm
Mean slope
9,3°
Water table
412cm
Forest
74%
Crops
23%
Urban
13%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)