HydroBASINS lev08 watershed · #6080120300
Bassin du Sinnamary
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 2 administrative regions : Kourou, Saint-Elie
Sub-basin area
1 231,7km²
Upstream area
2 794,3km²
Discharge
160,31m³/s
Mean elev.
91m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Sinnamary711 km²
- Bassin de Crique Alaparoubo187 km²
2 dept-equivalent regions (GADM L2)
- 1203.2 km²98.1% of basin
- 23.1 km²1.9% of basin
1 intersecting protected areas
Guyane
IUCN VRegional Nature Park
0.74 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 005 distinct species · 4 776 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 du Sinnamary : 28 espèces reliées par 29 interactions GloBI sur 2 types (connectance 5.5%, 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°
25,5°C
Annual rain
3 201mm
Moisture idx (CMI)
0,52
Runoff
1 811mm/an
PET
1 522mm
AET
1 409mm
Mean slope
3,7°
Water table
101cm
Forest
73%
Crops
0%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)