HydroBASINS lev08 watershed · #1081192590
Bassin de Nkora
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 4 administrative regions across 2 countries : Idjwi, Karongi, Nyamasheke, Rutsiro
Sub-basin area
913,5km²
Upstream area
2 939,7km²
Discharge
21,14m³/s
Mean elev.
1 516m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mubimbi1124 km²
- Bassin de Sebeya902 km²
4 dept-equivalent regions (GADM L2)
- 549.4 km²60.4% of basin
- 300.2 km²33.0% of basin
- 59.0 km²6.5% of basin
- 0.8 km²0.1% of basin
143 communes (GADM L5)Available for FRA, RWA
- Lake Kivu427.01 km²86% commune
- Lake Kivu59.03 km²30% commune
- Nyarusuku3.29 km²80% commune
- Kabuga2.47 km²100% commune
- Bwinyana2.34 km²100% commune
- Rutagara2.25 km²100% commune
- Rwambeho2.07 km²45% commune
- Rusororo2.06 km²100% commune
- Kagondero1.99 km²100% commune
- Gakomeye1.93 km²100% commune
- Ngunguru1.85 km²71% commune
- Nkomero1.76 km²100% commune
- Kinihira1.66 km²100% commune
- Gasenyi1.66 km²100% commune
- Nyamasheke1.63 km²98% commune
- Murambi1.53 km²100% commune
- Gaseke1.46 km²100% commune
- Gisiza1.41 km²100% commune
- Rwamiyaga1.40 km²100% commune
- Kabirizi1.37 km²100% commune
- Kinunga1.30 km²100% commune
- Kaganza1.27 km²100% commune
- Muramba1.24 km²100% commune
- Kabuga1.23 km²96% commune
- Murambi1.22 km²77% commune
- Kigarama1.20 km²100% commune
- Buhoro1.19 km²100% commune
- Kabakiza1.19 km²100% commune
- Munyinya1.18 km²100% commune
- Nyarugenge1.12 km²97% commune
- Kaboneye1.11 km²100% commune
- Mirambi1.10 km²100% commune
- Mubuga1.09 km²100% commune
- Rugamba1.09 km²100% commune
- Kavumu1.05 km²92% commune
- Rugaragara1.02 km²100% commune
- Muhororo1.00 km²99% commune
- Karukamba1.00 km²100% commune
- Buhonongo0.99 km²100% commune
- Kariba0.98 km²100% commune
- Bweramana0.97 km²100% commune
- Mugara0.96 km²100% commune
- Bunnyari0.96 km²100% commune
- Kashishi0.96 km²100% commune
- Bigabiro0.96 km²100% commune
- Gacaca0.96 km²100% commune
- Gashoko0.95 km²100% commune
- Bugarishya0.95 km²100% commune
- Rwimbogo0.94 km²100% commune
- Kamina0.94 km²100% commune
- Rusisiro0.92 km²100% commune
- Munanira0.92 km²100% commune
- Gataka0.92 km²40% commune
- Bikono0.91 km²100% commune
- Kamuzigura0.90 km²100% commune
- Muyange0.90 km²100% commune
- Kamaranzara0.90 km²100% commune
- Ryarwasa0.90 km²100% commune
- Rwabisururu0.88 km²100% commune
- Kagano0.87 km²93% commune
- Rugabi0.87 km²100% commune
- Kanyirahweza0.86 km²100% commune
- Bushunga0.86 km²100% commune
- Gisoro0.86 km²100% commune
- Rwumba0.86 km²99% commune
- Rurimba0.85 km²100% commune
- Kakibaba0.85 km²100% commune
- Gahunga0.85 km²100% commune
- Mukati0.83 km²100% commune
- Rusumo0.83 km²100% commune
- Muramba0.82 km²98% commune
- Tawuni0.81 km²68% commune
- Rukundo0.81 km²100% commune
- Gisiza0.80 km²100% commune
- Kinunu0.78 km²100% commune
- Nganzo0.78 km²100% commune
- Lake Kivu0.78 km²0% commune
- Gihumba0.78 km²100% commune
- Ruhengeri0.77 km²99% commune
- Bukungu0.77 km²100% commune
- Buzukira0.76 km²100% commune
- Gaharawe0.76 km²100% commune
- Buhunde0.76 km²100% commune
- Gakenke0.73 km²100% commune
- Rupango0.72 km²100% commune
- Maziba0.72 km²100% commune
- Syiki0.71 km²100% commune
- Gasereganya0.71 km²100% commune
- Cyivugiza0.71 km²38% commune
- Rwintanga0.71 km²100% commune
- Nturo0.68 km²100% commune
- Buhimba0.68 km²100% commune
- Humiro0.67 km²100% commune
- Gasave0.67 km²100% commune
- Gasoro0.67 km²100% commune
- Kabere0.66 km²100% commune
- Ruvumu0.65 km²100% commune
- Rwinyoni0.65 km²100% commune
- Kampi0.64 km²55% commune
- Cyondo0.64 km²100% commune
- Murama0.64 km²73% commune
- Murambi0.63 km²100% commune
- Kabashyembe0.63 km²100% commune
- Nyabiti0.62 km²100% commune
- Nkomero0.61 km²100% commune
- Rugerero0.60 km²100% commune
- Ruyogoro0.60 km²100% commune
- Rwesero0.60 km²100% commune
- Nkamba0.59 km²100% commune
- Kamuyaga0.58 km²100% commune
- Tagaza0.57 km²100% commune
- Muhora0.57 km²100% commune
- Karengera0.57 km²100% commune
- Burambo0.56 km²100% commune
- Bushaka0.56 km²100% commune
- Kamwimba0.56 km²100% commune
- Bukumba0.54 km²78% commune
- Rwamvura0.54 km²73% commune
- Bubira0.54 km²100% commune
- Buruseri0.54 km²35% commune
- Karambi0.53 km²100% commune
- Bugarura0.50 km²100% commune
- Gahotora0.50 km²100% commune
- Rukombe0.49 km²100% commune
- Kivumu0.48 km²100% commune
- Buroha0.45 km²100% commune
- Kigugu0.44 km²100% commune
- Gasagara0.40 km²100% commune
- Tarafiporo0.36 km²52% commune
- Kayove0.36 km²50% commune
- Rwagatoki0.29 km²39% commune
- Gisunzu0.29 km²23% commune
- Nteko0.17 km²5% commune
- Remera0.14 km²15% commune
- Gitete0.13 km²12% commune
- Rebero0.13 km²14% commune
- Kabatoni0.09 km²17% commune
- Buzeyi0.07 km²5% commune
- Muhingo0.06 km²6% commune
- Nyagafurwe0.05 km²6% commune
- Rwangoma0.01 km²1% commune
- Kabuga0.01 km²1% commune
- Ngoma0.00 km²0% commune
1 intersecting protected areas
Gishwati-Mukura
IUCN IVNational Park
0.34 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
403 distinct species · 3 973 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 Nkora : 20 espèces reliées par 18 interactions GloBI sur 3 types (connectance 7.1%, 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°
19,6°C
Annual rain
1 269mm
Moisture idx (CMI)
-0,18
Runoff
405mm/an
PET
1 546mm
AET
1 075mm
Mean slope
2,5°
Water table
120cm
Forest
3%
Crops
16%
Urban
6%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)