Ruisseau· 6 segments
井川
Crosses 4 administrative regions : Akita, Gojōme, Hachirōgata, Ikawa
Total length
32km
Max discharge
1,6m³/s
Max Strahler
2
Segments matched
6
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- IkawaAkita · Japan15.5 kmin this dpt
- GojōmeAkita · Japan1.2 kmin this dpt
- AkitaAkita · Japan0.5 kmin this dpt
- HachirōgataAkita · Japan0.0 kmin this dpt
1 intersecting protected areas
Gojomeikawa
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
101 distinct species · 167 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 井川 : 11 espèces reliées par 8 interactions GloBI sur 3 types (connectance 12.1%, 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
32km
Max discharge
1,6m³/s
Max Strahler
2
Segments matched
6
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.