Rivière· 9 segments
沼田川
Crosses 2 administrative regions : Higashihiroshima, Mihara
Total length
69km
Max discharge
7,3m³/s
Max Strahler
4
Segments matched
9
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- HigashihiroshimaHiroshima · Japan18.3 kmin this dpt
- MiharaHiroshima · Japan10.3 kmin this dpt
5 intersecting protected areas
Setonaikai
IUCN VNational Park
Common fishery right area
Chikurinji yokura yama
IUCN VPrefectural Natural Park
Nutagawa
IUCN IVPrefectural Wildlife Protection Area
The Wadaoki Forest within MHI's Mihara Machinery Works
IUCN Not ApplicableOECM
1 page = 1 named river (aggregation of 9 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
88 distinct species · 115 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 沼田川 : 6 espèces reliées par 6 interactions GloBI sur 2 types (connectance 16.7%, filtre Serrano α=0.2). 3 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
69km
Max discharge
7,3m³/s
Max Strahler
4
Segments matched
9
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.