HydroBASINS lev08 watershed · #1081020710
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 13 administrative regions : Aba North, Aba South, Eleme, Etche, Khana +8
Sub-basin area
906,1km²
Upstream area
5 773,7km²
Discharge
276,68m³/s
Mean elev.
35m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Otamiri River2492 km²
- Bassin de Imo River2376 km²
13 dept-equivalent regions (GADM L2)
- 240.6 km²26.7% of basin
- 211.9 km²23.5% of basin
- 204.6 km²22.7% of basin
- 104.2 km²11.6% of basin
- 50.4 km²5.6% of basin
- 42.6 km²4.7% of basin
- 24.0 km²2.7% of basin
- 10.1 km²1.1% of basin
5 moreFull L2 list
- Eleme3.9 km² · 0.4%
- Khana3.8 km² · 0.4%
- Tai2.4 km² · 0.3%
- Obi Ngwa2.0 km² · 0.2%
- Obio/Akpor1.6 km² · 0.2%
1 intersecting protected areas
Obeaku
IUCN Not ReportedForest Reserve
18.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
158 distinct species · 427 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 : 25 espèces reliées par 31 interactions GloBI sur 3 types (connectance 7.1%, filtre Serrano α=0.2). 5 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°
26,4°C
Annual rain
2 598mm
Moisture idx (CMI)
0,40
Runoff
1 540mm/an
PET
1 566mm
AET
1 307mm
Mean slope
0,3°
Water table
12cm
Forest
57%
Crops
50%
Urban
38%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)