Ruisseau· 2 segments
塚田川
Crosses 2 administrative regions : Agano, Niigata
Total length
14km
Max discharge
1,8m³/s
Max Strahler
2
Segments matched
2
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
4 intersecting protected areas
Gozu renpo
IUCN VPrefectural Natural Park
Gozurenpo
IUCN IVPrefectural Wildlife Protection Area
Hyoko
IUCN IVNational Wildlife Protection Area
Yamazaki
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
91 distinct species · 117 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 塚田川 : 22 espèces reliées par 17 interactions GloBI sur 3 types (connectance 6.7%, 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
14km
Max discharge
1,8m³/s
Max Strahler
2
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.