HydroBASINS lev08 watershed · #1080977020
Bassin de Ofin
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 : Ahafo-Ano South East, Ahafo-Ano South West, Amansie South, Amansie West, Atwima-Mponua +2
Sub-basin area
1 868,9km²
Upstream area
4 459,4km²
Discharge
40,05m³/s
Mean elev.
222m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Ofin2000 km²
- Bassin de Ofin591 km²
7 dept-equivalent regions (GADM L2)
- 964.7 km²51.8% of basin
- 449.5 km²24.2% of basin
- 149.4 km²8.0% of basin
- 136.3 km²7.3% of basin
- 85.2 km²4.6% of basin
- 46.6 km²2.5% of basin
- 29.1 km²1.6% of basin
7 intersecting protected areas
Asenanyo
IUCN VIForest Reserve
191.09 km² overlap
Tano Ofin
IUCN IIIForest Reserve
138.92 km² overlap
Jimira
IUCN IVForest Reserve
37.73 km² overlap
Oda River
IUCN IVForest Reserve
24.89 km² overlap
Jimira Extension
IUCN IVForest Reserve
23.55 km² overlap
Anhwiaso East
IUCN VIForest Reserve
23.54 km² overlap
Jeni River
IUCN IIIForest Reserve
13.54 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
177 distinct species · 664 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 de Ofin : 15 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 17 interactions GloBI sur 4 types (connectance 9.9%, 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°
25,7°C
Annual rain
1 411mm
Moisture idx (CMI)
-0,12
Runoff
301mm/an
PET
1 609mm
AET
1 186mm
Mean slope
3,4°
Water table
152cm
Forest
27%
Crops
10%
Urban
4%
Protected
30%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)