Ontologia

Ruisseau

三ッ沢川

Crosses 2 administrative regions : Shōnai, Tozawa

ruisseau

Total length

25km

Max discharge

1,5m³/s

Max Strahler

1

Segments matched

1

River geography2 admin regions · 0 communes

Parent watershed

hybas-4080043390932 km²

2 administrative regions crossed (GADM L2)

  • Tozawa
    Yamagata · Japan
    11.8 km
    in this dpt
  • Shōnai
    Yamagata · Japan
    0.0 km
    in this dpt

3 intersecting protected areas

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

Species present

100 distinct species · 145 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 24 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 三ッ沢川 : 16 espèces reliées par 28 interactions GloBI sur 5 types (connectance 10.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
28
Connectance
0.101
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

25km

Max discharge

1,5m³/s

Max Strahler

1

Segments matched

1

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