Rivière· 20 segments
加治川
Crosses 2 administrative regions : Seirō, Shibata
Total length
52km
Max discharge
17,3m³/s
Max Strahler
4
Segments matched
20
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- ShibataNiigata · Japan60.5 kmin this dpt
- SeirōNiigata · Japan5.6 kmin this dpt
8 intersecting protected areas
Common fishery right area
Bandai asahi
IUCN IINational Park
Iidesan Shuhen
IUCN IbForest Ecosystem Reserve
Tainai ninoji
IUCN VPrefectural Natural Park
Kitamatadake
IUCN IVPrefectural Wildlife Protection Area
Ijimino koen
IUCN IVPrefectural Wildlife Protection Area
Kiyogata
IUCN IVPrefectural Wildlife Protection Area
Sannoumori
IUCN VGreen Space Environment Conservation Area(Niigata)
1 page = 1 named river (aggregation of 20 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
83 distinct species · 113 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 17 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 加治川 : 15 espèces reliées par 14 interactions GloBI sur 5 types (connectance 10.3%, filtre Serrano α=0.2). 2 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
52km
Max discharge
17,3m³/s
Max Strahler
4
Segments matched
20
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.