Ontologia

Ruisseau

丸万川

Crosses 3 administrative regions : Abashiri, Koshimizu, Ōzora

ruisseau

Total length

25km

Max discharge

0,8m³/s

Max Strahler

1

Segments matched

1

River geography3 admin regions · 0 communes

Parent watershed

hybas-40800379606940 km²

3 administrative regions crossed (GADM L2)

  • Ōzora
    Hokkaido · Japan
    8.5 km
    in this dpt
  • Abashiri
    Hokkaido · Japan
    8.3 km
    in this dpt
  • Koshimizu
    Hokkaido · Japan
    0.0 km
    in this dpt

3 intersecting protected areas

  • Abashiri

    IUCN V

    Quasi National Park

  • Tofutsuko

    IUCN IV

    National Wildlife Protection Area

  • Tofutsu-ko

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

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

Species present

2 distinct species · 3 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

25km

Max discharge

0,8m³/s

Max Strahler

1

Segments matched

1

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