HydroBASINS lev08 watershed · #4080038350
Bassin de 阿寒川
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 6 administrative regions : Ashoro, Kushiro City, Shiranuka, Teshikaga, Tsubetsu +1
Sub-basin area
827km²
Upstream area
827km²
Discharge
16,26m³/s
Mean elev.
339m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 809.6 km²97.7% of basin
- 14.7 km²1.8% of basin
- 1.8 km²0.2% of basin
- 1.0 km²0.1% of basin
- 0.9 km²0.1% of basin
- 0.2 km²0.0% of basin
16 intersecting protected areas
Akanmashu
IUCN IINational Park
256.07 km² overlap
Akanko
IUCN IVPrefectural Wildlife Protection Area
88.54 km² overlap
Akan
IUCN IVPrefectural Wildlife Protection Area
53.19 km² overlap
Oakandake
IUCN IVBiocenosis Protected Forest
37.38 km² overlap
Akan-ko
IUCN Not ReportedWetland of International Importance (Ramsar Site)
13.25 km² overlap
Penketo
IUCN IVPrefectural Wildlife Protection Area
4.93 km² overlap
Shunkushitakara
IUCN IVPrefectural Wildlife Protection Area
4.67 km² overlap
Meakan Todomatsu
IUCN IVRare Population Protected Forest
1.33 km² overlap
Komamaki takaya
IUCN IVPrefectural Wildlife Protection Area
0.96 km² overlap
7 more protected areassorted by overlap area
Rare Population Protected Forest
0.25 km² overlap
Kushiro tobu
IUCN VICoastline Marine Resource Development Area, designated sea area
0.11 km² overlap
Kushiroshitsugen
IUCN IINational Park
0.11 km² overlap
Common fishery right area
0.11 km² overlap
Kikindake
IUCN IVPrefectural Wildlife Protection Area
0.10 km² overlap
Rare Population Protected Forest
0.03 km² overlap
Meakan
IUCN IVPrefectural Wildlife Protection Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 632 distinct species · 10 159 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de 阿寒川 : 26 espèces reliées par 58 interactions GloBI sur 4 types (connectance 9.2%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
4,5°C
Annual rain
1 179mm
Moisture idx (CMI)
0,44
Runoff
648mm/an
PET
649mm
AET
632mm
Mean slope
8,4°
Water table
260cm
Forest
87%
Crops
5%
Urban
0%
Protected
38%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)