Rivière· 32 segments
Rio São João
Crosses 5 administrative regions : Araruama, Cabo Frio, Cachoeiras de Macacu, Casimiro de Abreu, Silva Jardim
Total length
1 738km
Max discharge
42,7m³/s
Max Strahler
5
Segments matched
32
River geography5 admin regions · 0 communes
5 administrative regions crossed (GADM L2)
- Silva JardimRio de Janeiro · Brazil75.6 kmin this dpt
- Casimiro de AbreuRio de Janeiro · Brazil14.1 kmin this dpt
- Cabo FrioRio de Janeiro · Brazil12.2 kmin this dpt
- Cachoeiras de MacacuRio de Janeiro · Brazil7.1 kmin this dpt
- AraruamaRio de Janeiro · Brazil6.1 kmin this dpt
8 intersecting protected areas
Environmental Protection Area
Park
Biological Reserve
Natural Heritage Private Reserve
Natural Heritage Private Reserve
Natural Heritage Private Reserve
Natural Heritage Private Reserve
Natural Heritage Private Reserve
1 page = 1 named river (aggregation of 32 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
422 distinct species · 1 442 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Rio São João : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 57 interactions GloBI sur 3 types (connectance 9.0%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
1 738km
Max discharge
42,7m³/s
Max Strahler
5
Segments matched
32
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.