HydroBASINS lev08 watershed · #1081079040
Bassin de Nyagak 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 5 administrative regions across 2 countries : Aru, Madi-Okollo, Mahagi, Okoro, Vurra
Sub-basin area
845,8km²
Upstream area
845,9km²
Discharge
4,7m³/s
Mean elev.
1 293m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 448.8 km²53.3% of basin
- 205.6 km²24.4% of basin
- 186.5 km²22.2% of basin
- 1.1 km²0.1% of basin
- 0.1 km²0.0% of basin
12 intersecting protected areas
Kafu
IUCN Not ReportedForest Reserve
25.82 km² overlap
Iyi
IUCN Not ReportedForest Reserve
24.05 km² overlap
Laura
IUCN Not ReportedForest Reserve
12.98 km² overlap
Ajupane
IUCN Not ReportedForest Reserve
4.71 km² overlap
Usi
IUCN Not ReportedForest Reserve
4.34 km² overlap
Okavu - Reru
IUCN Not ReportedForest Reserve
3.24 km² overlap
West Uru
IUCN Not ReportedForest Reserve
2.88 km² overlap
Lendu
IUCN Not ReportedForest Reserve
0.87 km² overlap
Omier
IUCN Not ReportedForest Reserve
0.36 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
79 distinct species · 132 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 Nyagak River : 26 espèces + 0 bulles famille, 22 interactions GloBI documentées sur 2 types (connectance 6.8%, 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°
22,0°C
Annual rain
1 344mm
Moisture idx (CMI)
-0,19
Runoff
169mm/an
PET
1 664mm
AET
1 116mm
Mean slope
4,3°
Water table
266cm
Forest
5%
Crops
20%
Urban
2%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)