Ontologia

Ruisseau

黒目川

Crosses 8 administrative regions : Asaka, Higashikurume, Kiyose, Niiza, Nishitōkyō +3

ruisseau

Total length

19km

Max discharge

1,4m³/s

Max Strahler

2

Segments matched

1

River geography8 admin regions · 0 communes

Parent watershed

hybas-4080591120795 km²

8 administrative regions crossed (GADM L2)

  • Asaka
    Saitama · Japan
    6.0 km
    in this dpt
  • Niiza
    Saitama · Japan
    4.4 km
    in this dpt
  • Kiyose
    Tokyo · Japan
    1.6 km
    in this dpt
  • Higashikurume
    Tokyo · Japan
    0.4 km
    in this dpt
  • Shiki
    Saitama · Japan
    0.2 km
    in this dpt
  • Nishitōkyō
    Tokyo · Japan
    0.0 km
    in this dpt
  • Saitama
    Saitama · Japan
    0.0 km
    in this dpt
  • Toda
    Saitama · Japan
    0.0 km
    in this dpt

6 intersecting protected areas

  • Arakawa nannbu

    IUCN IV

    Prefectural Wildlife Protection Area

  • Niiza

    IUCN IV

    Prefectural Wildlife Protection Area

  • Myouonzawa

    IUCN V

    Special green space conservation districts

  • Kouyama

    IUCN V

    Special green space conservation districts

  • Oka

    IUCN V

    Special green space conservation districts

  • Daikammizu

    IUCN V

    Special green space conservation districts

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

Species present

478 distinct species · 2 061 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 30 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 黒目川 : 24 espèces reliées par 42 interactions GloBI sur 4 types (connectance 7.5%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
42
Connectance
0.075
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

19km

Max discharge

1,4m³/s

Max Strahler

2

Segments matched

1

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