HydroLAKES lake · #171550
Iwaonaiko
Surface area
5,47km²
Avg depth
19,7m
Volume
107,7km³
Shoreline
27,5km
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Shibetsu CityHokkaido · Japan5.49 km²100.0% of lake
1 intersecting protected areas
Asahi
IUCN IVPrefectural Wildlife Protection Area
0.02 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
11 distinct species · 11 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 3 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 Iwaonaiko : 3 espèces reliées par 2 interactions GloBI sur 1 type (connectance 66.7%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Lake statistics (HydroLAKES)
Surface
5,47km²
Avg depth
19,7m
Volume
107,700km³
Watershed
332km²
Shoreline
27,5km
Shore dev. idx
3,32
Residence time
168days
Elevation
309m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.