Ruisseau· 7 segments
大沢川
Crosses 3 administrative regions : Higashine, Mamurogawa, Murayama
Total length
473km
Max discharge
0,8m³/s
Max Strahler
2
Segments matched
7
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- MurayamaYamagata · Japan5.9 kmin this dpt
- MamurogawaYamagata · Japan5.5 kmin this dpt
- HigashineYamagata · Japan0.8 kmin this dpt
7 intersecting protected areas
Green Corridor
Kabusan
IUCN VPrefectural Natural Park
Takasaka
IUCN IVPrefectural Wildlife Protection Area
Higashizawa koen
IUCN IVPrefectural Wildlife Protection Area
Goten
IUCN IVPrefectural Wildlife Protection Area
Osawagawa genryubu
IUCN VPrefectural Nature Conservation Area
Kawashimayama
IUCN VSatoyama Environment Conservation Area(Yamagata)
1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
60 distinct species · 100 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 8 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 大沢川 : 7 espèces reliées par 5 interactions GloBI sur 2 types (connectance 17.9%, filtre Serrano α=0.2). 1 bulle taxonomique (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
473km
Max discharge
0,8m³/s
Max Strahler
2
Segments matched
7
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.