HydroBASINS lev08 watershed · #1081620200
Bassin de Fish 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 3 administrative regions across 2 countries : Karas, Namakwa, Oranjemund
Sub-basin area
242,1km²
Upstream area
83 035,6km²
Discharge
24,5m³/s
Mean elev.
438m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 7 basins
- Bassin · #10800470802024 km²
- Bassin de Konkiep1417 km²
- Bassin · #10800505401183 km²
- Bassin · #1080061450484 km²
- Bassin de Fish River224 km²
- + 2 more
3 dept-equivalent regions (GADM L2)
- 144.8 km²59.9% of basin
- 96.8 km²40.1% of basin
- 0.1 km²0.0% of basin
2 intersecting protected areas
Ai-Ais Hot Springs
IUCN IINational Park
241.74 km² overlap
Richtersveld National Park
IUCN Not ReportedNational Park
0.08 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
56 distinct species · 77 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 Fish River : 7 espèces reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, 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°
18,7°C
Annual rain
61mm
Moisture idx (CMI)
-0,96
Runoff
13mm/an
PET
1 522mm
AET
51mm
Mean slope
14,7°
Water table
984cm
Forest
3%
Crops
0%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)