Ruisseau· 19 segments
五十嵐川
Crosses 1 administrative regions : Sanjō
Total length
48km
Max discharge
13,9m³/s
Max Strahler
3
Segments matched
19
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- SanjōNiigata · Japan33.7 kmin this dpt
7 intersecting protected areas
Echigosanzan-Tadami
IUCN IIQuasi National Park
Okuhayade awasumon
IUCN VPrefectural Natural Park
Echigo line
IUCN VGreen Corridor
Sumon
IUCN IVPrefectural Wildlife Protection Area
Sumondake
IUCN IVBiocenosis Protected Forest
Hodahashi Buna Idenshigen
IUCN IVRare Population Protected Forest
Yagigahana
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 19 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
70 distinct species · 100 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 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 五十嵐川 : 12 espèces reliées par 8 interactions GloBI sur 2 types (connectance 12.1%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
48km
Max discharge
13,9m³/s
Max Strahler
3
Segments matched
19
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.