Ontologia

Rivière· 80 segments

天塩川

Crosses 9 administrative regions : Aibetsu, Bifuka, Horokanai, Horonobe, Nakagawa +4

rivière

Total length

247km

Max discharge

155,2m³/s

Max Strahler

5

Segments matched

80

River geography9 admin regions · 0 communes

Parent watershed

hybas-40802816501187 km²

9 administrative regions crossed (GADM L2)

  • Shibetsu City
    Hokkaido · Japan
    59.2 km
    in this dpt
  • Nakagawa
    Hokkaido · Japan
    30.0 km
    in this dpt
  • Horonobe
    Hokkaido · Japan
    29.2 km
    in this dpt
  • Bifuka
    Hokkaido · Japan
    25.7 km
    in this dpt
  • Teshio
    Hokkaido · Japan
    24.9 km
    in this dpt
  • Otoineppu
    Hokkaido · Japan
    21.5 km
    in this dpt
  • Nayoro
    Hokkaido · Japan
    16.7 km
    in this dpt
  • Aibetsu
    Hokkaido · Japan
    3.6 km
    in this dpt
  • Horokanai
    Hokkaido · Japan
    0.0 km
    in this dpt

14 intersecting protected areas

5 more protected areas

  • Nakagawa

    IUCN V

    Environmental Green Space Protection Area(Hokkaido)

  • Fudo

    IUCN IV

    Prefectural Wildlife Protection Area

  • Chiebunnuma

    IUCN IV

    Prefectural Wildlife Protection Area

  • Nakatayoro

    IUCN IV

    Prefectural Wildlife Protection Area

  • Tsukumoyama

    IUCN V

    Environmental Green Space Protection Area(Hokkaido)

1 page = 1 named river (aggregation of 80 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

5 distinct species · 5 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

247km

Max discharge

155,2m³/s

Max Strahler

5

Segments matched

80

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.