Ruisseau· 19 segments
須川
Crosses 4 administrative regions : Kaminoyama, Nakayama, Yamagata, Yamanobe
Total length
97km
Max discharge
11,7m³/s
Max Strahler
3
Segments matched
19
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- KaminoyamaYamagata · Japan21.1 kmin this dpt
- YamagataYamagata · Japan14.8 kmin this dpt
- YamanobeYamagata · Japan2.8 kmin this dpt
- NakayamaYamagata · Japan1.5 kmin this dpt
3 intersecting protected areas
Green Corridor
Zao
IUCN VQuasi National Park
Kyozukayama
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 19 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
490 distinct species · 862 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 須川 : 25 espèces reliées par 41 interactions GloBI sur 5 types (connectance 7.8%, filtre Serrano α=0.2). 8 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
97km
Max discharge
11,7m³/s
Max Strahler
3
Segments matched
19
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.