HydroBASINS lev08 watershed · #6080120220
Bassin de Rivière Arouani
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 : Apatou, Grand-Santi, Mana, Saint-Laurent (du Maroni), Saül
Sub-basin area
1 666,7km²
Upstream area
1 666,8km²
Discharge
63,02m³/s
Mean elev.
116m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 1115.7 km²67.2% of basin
- 529.2 km²31.9% of basin
- 10.9 km²0.7% of basin
- 3.5 km²0.2% of basin
- 0.2 km²0.0% of basin
2 intersecting protected areas
Lucifer Dekou Dekou
IUCN IbForest Integral Biological Reserve
257.58 km² overlap
National Park - Buffer zone/Area of adhesion
0.63 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
525 distinct species · 937 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Rivière Arouani : 23 espèces reliées par 30 interactions GloBI sur 3 types (connectance 7.9%, filtre Serrano α=0.2). 5 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°
25,7°C
Annual rain
2 510mm
Moisture idx (CMI)
0,38
Runoff
1 184mm/an
PET
1 562mm
AET
1 445mm
Mean slope
3,1°
Water table
98cm
Forest
100%
Crops
0%
Urban
0%
Protected
36%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)