HydroBASINS lev08 watershed · #1081025140
Bassin de Imo River
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 7 administrative regions : Etim Ekpo, Ika, Khana, Oruk Anam, Oyigbo +2
Sub-basin area
572,1km²
Upstream area
6 921,7km²
Discharge
334,62m³/s
Mean elev.
35m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Imo River906 km²
- Bassin de Aba River576 km²
7 dept-equivalent regions (GADM L2)
- 214.0 km²37.6% of basin
- 147.9 km²26.0% of basin
- 114.7 km²20.1% of basin
- 65.0 km²11.4% of basin
- 14.6 km²2.6% of basin
- 11.8 km²2.1% of basin
- 1.7 km²0.3% of basin
2 intersecting protected areas
Lower Imo River
IUCN Not ReportedForest Reserve
76.29 km² overlap
Obeaku
IUCN Not ReportedForest Reserve
0.21 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
32 distinct species · 155 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 Imo River : 9 espèces reliées par 5 interactions GloBI sur 2 types (connectance 13.9%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
26,5°C
Annual rain
2 875mm
Moisture idx (CMI)
0,45
Runoff
1 598mm/an
PET
1 564mm
AET
1 343mm
Mean slope
0,5°
Water table
16cm
Forest
28%
Crops
51%
Urban
43%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)