HydroBASINS lev08 watershed · #1080982910
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 12 administrative regions : Adansi Akrofuom, Adansi Asokwa, Adansi North, Amansie Central, Amansie South +7
Sub-basin area
1 659,9km²
Upstream area
8 827km²
Discharge
73,33m³/s
Mean elev.
174m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Oda2707 km²
- Bassin de Ofin1869 km²
12 dept-equivalent regions (GADM L2)
- 413.6 km²25.0% of basin
- 399.5 km²24.2% of basin
- 266.1 km²16.1% of basin
- 186.1 km²11.3% of basin
- 141.4 km²8.6% of basin
- 75.0 km²4.5% of basin
- 68.5 km²4.1% of basin
- 54.9 km²3.3% of basin
4 moreFull L2 list
- Wassa Amenfi East27.5 km² · 1.7%
- Assin North11.8 km² · 0.7%
- Bosome Freho8.4 km² · 0.5%
- Amansie South0.1 km² · 0.0%
9 intersecting protected areas
Oda River
IUCN IVForest Reserve
44.76 km² overlap
Dampia Range
IUCN VIForest Reserve
40.40 km² overlap
Supuma Shelterbelt
IUCN IIIForest Reserve
27.19 km² overlap
Subin Shelterbelt
IUCN VIForest Reserve
24.10 km² overlap
Nkrabia
IUCN IIIForest Reserve
14.26 km² overlap
Bosumtwi Range
IUCN IVForest Reserve
13.42 km² overlap
Denyau Shelterbelt
IUCN IVForest Reserve
12.91 km² overlap
Pompo Headwaters
IUCN VIForest Reserve
10.03 km² overlap
Chiremoasi
IUCN IVForest Reserve
0.45 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
292 distinct species · 646 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 26 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 : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 4 types (connectance 5.5%, filtre Serrano α=0.2). 3 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°
25,5°C
Annual rain
1 498mm
Moisture idx (CMI)
-0,04
Runoff
293mm/an
PET
1 566mm
AET
1 220mm
Mean slope
4,1°
Water table
181cm
Forest
11%
Crops
12%
Urban
14%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)