HydroBASINS lev08 watershed · #1080029790
Bassin de Oued El Hachef وادي الحاشف
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 : Fahs Anjra, Larache, Tanger-Assilah, Tétouan
Sub-basin area
1 132,7km²
Upstream area
1 132,7km²
Discharge
9,51m³/s
Mean elev.
167m
Administrative coverage
4 dept-equivalent regions (GADM L2)
- 465.5 km²41.1% of basin
- 419.8 km²37.1% of basin
- Larache154.0 km²13.6% of basin
- 92.6 km²8.2% of basin
6 intersecting protected areas
Réserve de Biosphère Intercontinentale de la Méditerranée (RBIM)
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
341.18 km² overlap
Tanger - Tahaddart - Assilah
IUCN Not ApplicablePermanent Hunting Reserve
258.84 km² overlap
Oued Tahaddart
IUCN Not ApplicableBiological and Ecological Interest Site
108.03 km² overlap
Complexe du Bas Tahaddart
IUCN Not ReportedWetland of International Importance (Ramsar Site)
70.20 km² overlap
Jbel Lahbib
IUCN Not ApplicablePermanent Hunting Reserve
48.30 km² overlap
Jbel Haabib
IUCN Not ApplicableBiological and Ecological Interest Site
33.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
678 distinct species · 5 977 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 El Hachef وادي الحاشف : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 78 interactions GloBI sur 3 types (connectance 13.9%, 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°
17,7°C
Annual rain
795mm
Moisture idx (CMI)
-0,33
Runoff
294mm/an
PET
1 194mm
AET
618mm
Mean slope
6,2°
Water table
316cm
Forest
40%
Crops
64%
Urban
4%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)