HydroBASINS lev08 watershed · #6080129000
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 3 administrative regions : Roura, Régina (-Kaw), Saint-Elie
Sub-basin area
710,9km²
Upstream area
1 375,3km²
Discharge
78,48m³/s
Mean elev.
149m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Sinnamary463 km²
- Bassin de Crique Parasol201 km²
3 dept-equivalent regions (GADM L2)
- 704.1 km²99.5% of basin
- 3.4 km²0.5% of basin
- 0.2 km²0.0% of basin
3 intersecting protected areas
Guyane (Parc Amazonien)
IUCN IINational Park - Core Area
139.17 km² overlap
Guyane
IUCN VRegional Nature Park
3.23 km² overlap
Nouragues
IUCN IVNational Nature Reserve
1.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
230 distinct species · 431 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 : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 28 interactions GloBI sur 1 type (connectance 5.6%, filtre Serrano α=0.2). 6 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°
25,1°C
Annual rain
3 229mm
Moisture idx (CMI)
0,52
Runoff
1 862mm/an
PET
1 546mm
AET
1 421mm
Mean slope
5,7°
Water table
118cm
Forest
99%
Crops
0%
Urban
0%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)