HydroBASINS lev08 watershed · #1080023550
Bassin · #1080023550
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 9 administrative regions : Abura-Asebu-Kwamankese, Achiase, Ajumako-Enyan-Essiam, Asikuma-Odoben-Brakwa, Assin Central +4
Sub-basin area
1 426,5km²
Upstream area
1 426,7km²
Discharge
7,56m³/s
Mean elev.
101m
Administrative coverage
9 dept-equivalent regions (GADM L2)
- 577.1 km²40.6% of basin
- 317.4 km²22.3% of basin
- 166.5 km²11.7% of basin
- 141.1 km²9.9% of basin
- 100.8 km²7.1% of basin
- 59.5 km²4.2% of basin
- 54.2 km²3.8% of basin
- 2.7 km²0.2% of basin
1 moreFull L2 list
- Assin North0.9 km² · 0.1%
10 intersecting protected areas
Assin Attandaso
IUCN VIResource Reserve
56.19 km² overlap
Supong
IUCN VIForest Reserve
29.97 km² overlap
Krochua
IUCN VIForest Reserve
16.51 km² overlap
Wawahi
IUCN VIForest Reserve
11.96 km² overlap
Assin Apimanim
IUCN IVForest Reserve
11.69 km² overlap
Ajuesu
IUCN VIForest Reserve
9.55 km² overlap
Kakum
IUCN IINational Park
7.00 km² overlap
Baku
IUCN IIIForest Reserve
5.28 km² overlap
Bemu
IUCN VIForest Reserve
2.62 km² overlap
1 more protected areassorted by overlap area
Ochi Headwaters Blk I
IUCN IIIForest Reserve
0.04 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
432 distinct species · 2 109 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 · #1080023550 : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 39 interactions GloBI sur 3 types (connectance 7.4%, 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°
26,2°C
Annual rain
1 362mm
Moisture idx (CMI)
-0,08
Runoff
260mm/an
PET
1 477mm
AET
1 102mm
Mean slope
2,0°
Water table
94cm
Forest
9%
Crops
24%
Urban
12%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)