HydroBASINS lev08 watershed · #6080234060
Bassin de Rio Atuá
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 : Anajás, Muaná, São Sebastião da Boa Vista
Sub-basin area
350,1km²
Upstream area
350,1km²
Discharge
15,88m³/s
Mean elev.
18m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 310.4 km²89.1% of basin
- 29.9 km²8.6% of basin
- 8.3 km²2.4% of basin
3 intersecting protected areas
Environmental Protection Area
318.25 km² overlap
Wetland of International Importance (Ramsar Site)
30.50 km² overlap
Extractive Reserve
30.25 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
189 distinct species · 238 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Rio Atuá : 23 espèces reliées par 24 interactions GloBI sur 3 types (connectance 6.8%, filtre Serrano α=0.2). 4 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°
27,0°C
Annual rain
2 672mm
Moisture idx (CMI)
0,38
Runoff
1 366mm/an
PET
1 664mm
AET
1 414mm
Mean slope
0,7°
Water table
13cm
Forest
84%
Crops
2%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)