Ontologia

Rivière· 76 segments

最上川

Crosses 23 administrative regions : Asahi, Funagata, Higashine, Kahoku, Kawanishi +18

rivière

Total length

228km

Max discharge

226m³/s

Max Strahler

5

Segments matched

76

River geography23 admin regions · 0 communes

Parent watershed

hybas-40805081802145 km²

23 administrative regions crossed (GADM L2)

  • Sakata
    Yamagata · Japan
    19.6 km
    in this dpt
  • Yonezawa
    Yamagata · Japan
    18.7 km
    in this dpt
  • Ōishida
    Yamagata · Japan
    18.2 km
    in this dpt
  • Murayama
    Yamagata · Japan
    17.5 km
    in this dpt
  • Obanazawa
    Yamagata · Japan
    13.2 km
    in this dpt
  • Ōkura
    Yamagata · Japan
    12.7 km
    in this dpt
  • Sagae
    Yamagata · Japan
    12.6 km
    in this dpt
  • Nagai
    Yamagata · Japan
    12.4 km
    in this dpt
  • Asahi
    Yamagata · Japan
    12.3 km
    in this dpt
  • Tozawa
    Yamagata · Japan
    11.4 km
    in this dpt
  • Funagata
    Yamagata · Japan
    10.8 km
    in this dpt
  • Shirataka
    Yamagata · Japan
    9.8 km
    in this dpt
  • Shōnai
    Yamagata · Japan
    8.0 km
    in this dpt
  • Kahoku
    Yamagata · Japan
    5.9 km
    in this dpt
  • Kawanishi
    Yamagata · Japan
    5.9 km
    in this dpt
  • Ōe
    Yamagata · Japan
    5.0 km
    in this dpt
  • Tendo
    Yamagata · Japan
    3.7 km
    in this dpt
  • Shinjo
    Yamagata · Japan
    3.0 km
    in this dpt
  • Nakayama
    Yamagata · Japan
    2.3 km
    in this dpt
  • Nan'yo
    Yamagata · Japan
    1.1 km
    in this dpt
  • Takahata
    Yamagata · Japan
    1.0 km
    in this dpt
  • Yamagata
    Yamagata · Japan
    0.0 km
    in this dpt
  • Higashine
    Yamagata · Japan
    0.0 km
    in this dpt

14 intersecting protected areas

5 more protected areas

  • Ohirayama

    IUCN IV

    Prefectural Wildlife Protection Area

  • Sengenji ura

    IUCN IV

    Prefectural Wildlife Protection Area

  • Kawashimayama

    IUCN V

    Satoyama Environment Conservation Area(Yamagata)

  • Kiyokawa

    IUCN IV

    Prefectural Wildlife Protection Area

  • Aterazawa

    IUCN IV

    Prefectural Wildlife Protection Area

1 page = 1 named river (aggregation of 76 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

35 distinct species · 36 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 6 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 最上川 : 6 espèces reliées par 3 interactions GloBI sur 2 types (connectance 20.0%, filtre Serrano α=0.2).

Espèces affichées
6
Interactions affichées
3
Connectance
0.200
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

228km

Max discharge

226,0m³/s

Max Strahler

5

Segments matched

76

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