Rivière· 47 segments
夕張川
Crosses 11 administrative regions : Abira, Asahikawa, Biei, Chitose, Ebetsu +6
Total length
131km
Max discharge
38,8m³/s
Max Strahler
4
Segments matched
47
River geography11 admin regions · 0 communes
11 administrative regions crossed (GADM L2)
- YūbariHokkaido · Japan67.1 kmin this dpt
- YuniHokkaido · Japan32.6 kmin this dpt
- NaganumaHokkaido · Japan8.9 kmin this dpt
- EbetsuHokkaido · Japan4.3 kmin this dpt
- KuriyamaHokkaido · Japan3.8 kmin this dpt
- NanporoHokkaido · Japan2.5 kmin this dpt
- BieiHokkaido · Japan1.9 kmin this dpt
- AbiraHokkaido · Japan0.6 kmin this dpt
- ChitoseHokkaido · Japan0.5 kmin this dpt
- IwamizawaHokkaido · Japan0.0 kmin this dpt
- AsahikawaHokkaido · Japan0.0 kmin this dpt
8 intersecting protected areas
Furano ashibetsu
IUCN VPrefectural Natural Park
Daini shuparo
IUCN IVPrefectural Wildlife Protection Area
Shuparo
IUCN IVPrefectural Wildlife Protection Area
Kuriyama sakuraoka
IUCN IVPrefectural Wildlife Protection Area
Rare Population Protected Forest
Momijiyama Keyamahannoki
IUCN IVRare Population Protected Forest
Rare Population Protected Forest
Nanbu Ezomatsu Idenshigen
IUCN IVRare Population Protected Forest
1 page = 1 named river (aggregation of 47 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
274 distinct species · 419 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 夕張川 : 23 espèces reliées par 26 interactions GloBI sur 5 types (connectance 6.4%, filtre Serrano α=0.2). 6 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
131km
Max discharge
38,8m³/s
Max Strahler
4
Segments matched
47
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.