Ruisseau· 10 segments
雑魚川
Crosses 3 administrative regions : Kijimadaira, Sakae, Yamanouchi
Total length
23km
Max discharge
3,7m³/s
Max Strahler
2
Segments matched
10
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- YamanouchiNagano · Japan18.0 kmin this dpt
- KijimadairaNagano · Japan3.3 kmin this dpt
- SakaeNagano · Japan0.5 kmin this dpt
7 intersecting protected areas
Joshinetsukogen
IUCN IINational Park
Shiga Highland
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
Saburyuyama Shuhen
IUCN IbForest Ecosystem Reserve
Shiga kogen
IUCN IVPrefectural Wildlife Protection Area
Kayanotairato
IUCN IVBiocenosis Protected Forest
Yakebitai
IUCN IVPrefectural Wildlife Protection Area
Torikabuto yama
IUCN VPrefectural Nature Conservation Area
1 page = 1 named river (aggregation of 10 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
257 distinct species · 379 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 雑魚川 : 12 espèces reliées par 10 interactions GloBI sur 3 types (connectance 12.8%, 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
23km
Max discharge
3,7m³/s
Max Strahler
2
Segments matched
10
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.