Rivière· 40 segments

旭川

Crosses 6 administrative regions : Akaiwa, Kibichūō, Maniwa, Misaki, Okayama +1

rivière

Total length

206km

Max discharge

37,8m³/s

Max Strahler

Segments matched

River geography6 admin regions · 0 communes

Parent watershed

hybas-40800417301625 km²

6 administrative regions crossed (GADM L2)

Maniwa
Okayama · Japan
65.6 km
in this dpt
Okayama
Okayama · Japan
39.2 km
in this dpt
Misaki
Okayama · Japan
14.8 km
in this dpt
Kibichūō
Okayama · Japan
2.3 km
in this dpt
Akaiwa
Okayama · Japan
0.4 km
in this dpt
Tsuyama
Okayama · Japan
0.0 km
in this dpt

10 intersecting protected areas

Daisen oki
IUCN V
National Park
Yubara okutsu
IUCN V
Prefectural Natural Park
Kibi Seiryu
IUCN V
Prefectural Natural Park
Asahigawako
IUCN IV
Prefectural Wildlife Protection Area
Hitsugasen
IUCN IV
Prefectural Wildlife Protection Area
Yubarako
IUCN IV
Prefectural Wildlife Protection Area
Kanbano taki shizen koen
IUCN IV
Prefectural Wildlife Protection Area
Katsuyama utsukushii mori
IUCN IV
Prefectural Wildlife Protection Area
Tatsunokuchiyama Arakashi
IUCN IV
Rare Population Protected Forest

1 more protected areassorted by area

Tatsu no kuchi
IUCN V
Environmental Green Space Protection Area(Okayama)

1 page = 1 named river (aggregation of 40 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

134 distinct species · 173 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de 旭川 : 6 espèces reliées par 5 interactions GloBI sur 1 type (connectance 17.9%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.179

Patrimoniales

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)