HydroBASINS lev08 watershed · #5080199870
Bassin de Marca 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 4 administrative regions : Daulo, Goroka, Unggai-Bena, Usino-Bundi
Sub-basin area
755,6km²
Upstream area
755,6km²
Discharge
35,19m³/s
Mean elev.
1 151m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Usino-BundiMadang · Papua New Guinea619.4 km²82.3% of basin
- 59.4 km²7.9% of basin
- 54.4 km²7.2% of basin
- 19.1 km²2.5% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
323 distinct species · 531 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 10 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 Marca River : 10 espèces reliées par 6 interactions GloBI sur 2 types (connectance 13.3%, 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°
21,4°C
Annual rain
2 714mm
Moisture idx (CMI)
0,41
Runoff
1 472mm/an
PET
1 540mm
AET
1 485mm
Mean slope
19,0°
Water table
548cm
Forest
82%
Crops
3%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)