HydroBASINS lev08 watershed · #1080023050
Bassin de Chenal de Cotonou
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 : Cotonou
Sub-basin area
16km²
Upstream area
59 907,9km²
Discharge
283,85m³/s
Mean elev.
5m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Djonou1150 km²
- Bassin de Chenal de Cotonou44 km²
1 intersecting protected areas
Wetland of International Importance (Ramsar Site)
15.93 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 203 distinct species · 4 809 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 Chenal de Cotonou : 40 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 61 interactions GloBI sur 6 types (connectance 5.4%, 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°
26,8°C
Annual rain
1 245mm
Moisture idx (CMI)
-0,07
Runoff
423mm/an
PET
1 333mm
AET
940mm
Mean slope
0,1°
Water table
15cm
Forest
0%
Crops
0%
Urban
98%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)