HydroBASINS lev08 watershed · #6080873600
Bassin de Arroio Moreira
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 : Arroio Grande, Capão do Leão, Lagoa Mirim, Pedro Osório, Rio Grande
Sub-basin area
1 382,3km²
Upstream area
48 657,1km²
Discharge
964,65m³/s
Mean elev.
12m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Arroio Parapó562 km²
- Bassin · #608087614051 km²
5 dept-equivalent regions (GADM L2)
- 778.2 km²56.3% of basin
- 412.9 km²29.9% of basin
- 148.8 km²10.8% of basin
- 41.5 km²3.0% of basin
- 0.1 km²0.0% of basin
2 intersecting protected areas
Biological Reserve
40.28 km² overlap
Wildlife Refuge
1.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
371 distinct species · 6 899 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Arroio Moreira : 23 espèces reliées par 28 interactions GloBI sur 3 types (connectance 6.4%, filtre Serrano α=0.2). 7 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°
17,9°C
Annual rain
1 285mm
Moisture idx (CMI)
0,04
Runoff
722mm/an
PET
1 230mm
AET
963mm
Mean slope
0,3°
Water table
17cm
Forest
35%
Crops
20%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)