HydroBASINS lev08 watershed · #1080021440
Bassin de Nyong
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 3 administrative regions : Nyong et Kéllé, Océan, Sanaga Maritime
Sub-basin area
2 012,7km²
Upstream area
27 887km²
Discharge
594,56m³/s
Mean elev.
83m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Nyong2401 km²
- Bassin de Kéllé114 km²
3 dept-equivalent regions (GADM L2)
- 961.1 km²48.0% of basin
- 708.3 km²35.3% of basin
- 334.4 km²16.7% of basin
1 intersecting protected areas
Douala Edéa
IUCN IINational Park
180.63 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
579 distinct species · 2 760 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Nyong : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 22 interactions GloBI sur 2 types (connectance 7.3%, 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°
26,1°C
Annual rain
2 543mm
Moisture idx (CMI)
0,43
Runoff
1 463mm/an
PET
1 438mm
AET
1 267mm
Mean slope
2,0°
Water table
66cm
Forest
78%
Crops
1%
Urban
0%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)