Ruisseau· 4 segments
オナルシベ川
Crosses 1 administrative regions : Samani
Total length
5km
Max discharge
4,9m³/s
Max Strahler
3
Segments matched
4
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- SamaniHokkaido · Japan12.6 kmin this dpt
6 intersecting protected areas
Common fishery right area
Hidakasanmyaku-Erimo-Tokachi
IUCN IINational Park
Hidaka tobu
IUCN VICoastline Marine Resource Development Area, designated sea area
Horoman
IUCN IVPrefectural Wildlife Protection Area
Apoidake
IUCN IVPrefectural Wildlife Protection Area
Hidakasou seisokuchi
IUCN IVHabitat Protection Area(Hokkaido)
1 page = 1 named river (aggregation of 4 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
98 distinct species · 372 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 2 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 オナルシベ川 : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
5km
Max discharge
4,9m³/s
Max Strahler
3
Segments matched
4
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.