Ontologia

Ruisseau· 9 segments

金山川

Crosses 5 administrative regions : Kaminoyama, Kaneyama, Mamurogawa, Shinjo, Yuzawa

ruisseau

Total length

128km

Max discharge

8,7m³/s

Max Strahler

3

Segments matched

9

River geography5 admin regions · 0 communes

Parent watershed

hybas-4080496640875 km²

5 administrative regions crossed (GADM L2)

  • Kaneyama
    Yamagata · Japan
    24.0 km
    in this dpt
  • Mamurogawa
    Yamagata · Japan
    8.6 km
    in this dpt
  • Kaminoyama
    Yamagata · Japan
    3.3 km
    in this dpt
  • Yuzawa
    Akita · Japan
    0.0 km
    in this dpt
  • Shinjo
    Yamagata · Japan
    0.0 km
    in this dpt

5 intersecting protected areas

1 page = 1 named river (aggregation of 9 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

48 distinct species · 57 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 5 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de 金山川 : 5 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 3 interactions GloBI sur 2 types (connectance 30.0%, filtre Serrano α=0.2).

Espèces affichées
5
Interactions affichées
3
Connectance
0.300
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)

Total length

128km

Max discharge

8,7m³/s

Max Strahler

3

Segments matched

9

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.