Ontologia

Rivière· 31 segments

太田川

Crosses 3 administrative regions : Akiōta, Hatsukaichi, Hiroshima

rivière

Total length

411km

Max discharge

41,2m³/s

Max Strahler

4

Segments matched

31

River geography3 admin regions · 0 communes

Parent watershed

hybas-408004180014401 km²

3 administrative regions crossed (GADM L2)

  • Hiroshima
    Hiroshima · Japan
    39.3 km
    in this dpt
  • Akiōta
    Hiroshima · Japan
    34.0 km
    in this dpt
  • Hatsukaichi
    Hiroshima · Japan
    10.6 km
    in this dpt

7 intersecting protected areas

  • Nishichugokusanchi

    IUCN V

    Quasi National Park

  • Fukuoji

    IUCN IV

    Prefectural Wildlife Protection Area

  • Ushitayama

    IUCN IV

    Prefectural Wildlife Protection Area

  • Hosomidani

    IUCN IV

    Prefectural Wildlife Protection Area

  • Midorii

    IUCN IV

    Prefectural Wildlife Protection Area

  • Tateiwa

    IUCN IV

    Prefectural Wildlife Protection Area

  • Miyamakyou

    IUCN V

    Green Space Environment Conservation Area(Hiroshima)

1 page = 1 named river (aggregation of 31 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

86 distinct species · 120 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 2 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 太田川 : 1 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
3
Interactions affichées
2
Connectance
0.667
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

411km

Max discharge

41,2m³/s

Max Strahler

4

Segments matched

31

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