Ruisseau· 5 segments

大谷川

Crosses 6 administrative regions : Kumiyama, Kyoto, Lake Biwa, Takashima, Yawata +1

ruisseau

Total length

793km

Max discharge

1,7m³/s

Max Strahler

Segments matched

River geography6 admin regions · 0 communes

Parent watershed

hybas-40806099602540 km²

6 administrative regions crossed (GADM L2)

Takashima
Shiga · Japan
14.4 km
in this dpt
Ōtsu
Shiga · Japan
3.1 km
in this dpt
Lake Biwa
Shiga · Japan
2.8 km
in this dpt
Kyoto
Kyoto · Japan
1.4 km
in this dpt
Yawata
Kyoto · Japan
1.1 km
in this dpt
Kumiyama
Kyoto · Japan
0.4 km
in this dpt

8 intersecting protected areas

Biwako
IUCN V
Quasi National Park
Biwako
IUCN IV
Prefectural Wildlife Protection Area
Kyoto Tamba Kogen
IUCN V
Quasi National Park
Biwa-ko
IUCN Not Reported
Wetland of International Importance (Ramsar Site)
Kutsuki-katsura gawa
IUCN V
Prefectural Natural Park
Otokoyama
IUCN IV
Prefectural Wildlife Protection Area
Shikagase-Kurodani
IUCN IV
Prefectural Wildlife Protection Area
Otokoyama
IUCN V
Historic Natural Environment Conservation Area(Kyoto)

1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

151 distinct species · 256 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 34 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 大谷川 : 30 espèces reliées par 40 interactions GloBI sur 4 types (connectance 6.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.064

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)