HydroBASINS lev08 watershed · #5080193510
Bassin de Sepik
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 1 administrative regions : Telefomin
Sub-basin area
653,3km²
Upstream area
2 634,4km²
Discharge
297,54m³/s
Mean elev.
1 328m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Hak River464 km²
- Bassin de Sepik River463 km²
1 dept-equivalent regions (GADM L2)
- 650.5 km²100.0% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
244 distinct species · 740 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 18 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 Sepik : 15 espèces reliées par 13 interactions GloBI sur 3 types (connectance 8.5%, 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°
20,5°C
Annual rain
5 121mm
Moisture idx (CMI)
0,72
Runoff
4 104mm/an
PET
1 407mm
AET
1 407mm
Mean slope
22,8°
Water table
600cm
Forest
90%
Crops
9%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)