Rivière· 18 segments
頓別川
Crosses 3 administrative regions : Hamatonbetsu, Nakatonbetsu, Otoineppu
rivière
Total length
64km
Max discharge
22,2m³/s
Max Strahler
4
Segments matched
18
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- NakatonbetsuHokkaido · Japan25.8 kmin this dpt
- HamatonbetsuHokkaido · Japan19.0 kmin this dpt
- OtoineppuHokkaido · Japan0.9 kmin this dpt
3 intersecting protected areas
Common fishery right area
Soya tobu
IUCN VICoastline Marine Resource Development Area, designated sea area
Hokudai nakagawa kenkyurin
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 18 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
14 distinct species · 17 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Not enough documented interactions to build a meaningful graph for this territory.
Hydrology (HydroRIVERS v10)
Total length
64km
Max discharge
22,2m³/s
Max Strahler
4
Segments matched
18
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.