HydroBASINS lev08 watershed · #4080045170
Bassin de 瀬戸川
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 : Fujieda, Kawane, Okabe, Shimada, Shizuoka +1
Sub-basin area
197,2km²
Upstream area
197,2km²
Discharge
8,13m³/s
Mean elev.
190m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 117.8 km²59.7% of basin
- 51.2 km²26.0% of basin
- 13.0 km²6.6% of basin
- 7.7 km²3.9% of basin
- 6.5 km²3.3% of basin
- 0.6 km²0.3% of basin
9 intersecting protected areas
Takakusayama
IUCN IVPrefectural Wildlife Protection Area
9.77 km² overlap
Rengejiike
IUCN IVPrefectural Wildlife Protection Area
7.53 km² overlap
Tokaishizenhodo sida
IUCN IVPrefectural Wildlife Protection Area
5.79 km² overlap
Fuziedashi shiminno mori
IUCN IVPrefectural Wildlife Protection Area
0.35 km² overlap
Common fishery right area
0.16 km² overlap
Chibasan
IUCN IVPrefectural Wildlife Protection Area
0.08 km² overlap
Othusyogakko
IUCN IVPrefectural Wildlife Protection Area
0.02 km² overlap
SUMITOMO BAKELITE CO.,LTD. Shizuoka Plant Biotop Ikoi no Mori
IUCN Not ApplicableOECM
0.02 km² overlap
Tokaishizenhodo shizuoka
IUCN IVPrefectural Wildlife Protection Area
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
653 distinct species · 1 801 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 瀬戸川 : 26 espèces reliées par 47 interactions GloBI sur 5 types (connectance 9.5%, filtre Serrano α=0.2). 6 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°
15,2°C
Annual rain
2 163mm
Moisture idx (CMI)
0,54
Runoff
1 301mm/an
PET
998mm
AET
998mm
Mean slope
12,1°
Water table
340cm
Forest
64%
Crops
3%
Urban
36%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)