Ontologia

Rivière· 3 segments

中之島川

Crosses 4 administrative regions : Mitsuke, Nagaoka, Sanjō, Tsubame

rivière

Total length

13km

Max discharge

17,2m³/s

Max Strahler

4

Segments matched

3

River geography4 admin regions · 0 communes

Parent watershed

hybas-40800431801612 km²

4 administrative regions crossed (GADM L2)

  • Nagaoka
    Niigata · Japan
    3.6 km
    in this dpt
  • Tsubame
    Niigata · Japan
    0.9 km
    in this dpt
  • Mitsuke
    Niigata · Japan
    0.0 km
    in this dpt
  • Sanjō
    Niigata · Japan
    0.0 km
    in this dpt

1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

87 distinct species · 119 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de 中之島川 : 17 espèces reliées par 29 interactions GloBI sur 4 types (connectance 11.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
23
Interactions affichées
29
Connectance
0.115
Patrimoniales
0
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

13km

Max discharge

17,2m³/s

Max Strahler

4

Segments matched

3

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