HydroBASINS lev08 watershed · #1080027930
Bassin · #1080027930
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 1 administrative regions : Nouadhibou
Sub-basin area
873,9km²
Upstream area
873,9km²
Discharge
0m³/s
Mean elev.
24m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 855.3 km²98.2% of basin
3 intersecting protected areas
Banc d'Arguin
IUCN IINational Park
696.68 km² overlap
Banc d'Arguin National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
668.45 km² overlap
Wetland of International Importance (Ramsar Site)
667.91 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
68 distinct species · 337 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 19 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 · #1080027930 : 18 espèces reliées par 17 interactions GloBI sur 2 types (connectance 9.9%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
24,1°C
Annual rain
30mm
Moisture idx (CMI)
-0,98
Runoff
1mm/an
PET
1 689mm
AET
22mm
Mean slope
0,3°
Water table
118cm
Forest
0%
Crops
0%
Urban
0%
Protected
80%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)