Rivière· 52 segments
大井川
Crosses 4 administrative regions : Kawane, Kawanehon, Shimada, Shizuoka
Total length
297km
Max discharge
49,6m³/s
Max Strahler
4
Segments matched
52
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
8 intersecting protected areas
Minami alps
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
Senzumisakubo
IUCN IVPrefectural Wildlife Protection Area
Ikawa mountains and forest
IUCN Not ApplicableOECM
Minami-Alps
IUCN IVPrefectural Wildlife Protection Area
Okuoi
IUCN VPrefectural Natural Park
Tokaisizenhodokawane
IUCN IVPrefectural Wildlife Protection Area
Ikawako
IUCN IVPrefectural Wildlife Protection Area
Sawarajima
IUCN IVPrefectural Wildlife Protection Area
1 page = 1 named river (aggregation of 52 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
129 distinct species · 169 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 15 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).
Indicateurs du tissu écologique
Tissu écologique de 大井川 : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 13 interactions GloBI sur 3 types (connectance 12.4%, filtre Serrano α=0.2). 3 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
297km
Max discharge
49,6m³/s
Max Strahler
4
Segments matched
52
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.