HydroBASINS lev08 watershed · #4080046300
Bassin de 浦内川
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 5 administrative regions : Ishigaki, Miyakojima, Taketomi, Tarama, Yonaguni
Sub-basin area
1 005,4km²
Upstream area
1 005,4km²
Discharge
12,46m³/s
Mean elev.
74m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- 338.9 km²33.8% of basin
- 236.5 km²23.6% of basin
- MiyakojimaOkinawa · Japan212.4 km²21.2% of basin
- 29.9 km²3.0% of basin
- 23.9 km²2.4% of basin
25 intersecting protected areas
Iriomote ishigaki
IUCN IINational Park
491.43 km² overlap
Iriomotejima
IUCN IbForest Ecosystem Reserve
225.28 km² overlap
Amami-Oshima Island, Tokunoshima Island, Northern part of Okinawa Island, and Iriomote Island
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
208.92 km² overlap
Common fishery right area
176.54 km² overlap
Iriomote
IUCN IVNational Wildlife Protection Area
101.15 km² overlap
Irabu
IUCN IVPrefectural Wildlife Protection Area
41.34 km² overlap
Irabu
IUCN VPrefectural Natural Park
41.20 km² overlap
Tarama
IUCN VPrefectural Natural Park
31.03 km² overlap
Yabiji
IUCN IIINational Natural Monument
24.29 km² overlap
16 more protected areassorted by overlap area
Yonaguni
IUCN IVNational Wildlife Protection Area
10.36 km² overlap
Yonahawan
IUCN IVNational Wildlife Protection Area
9.95 km² overlap
Nagura anparu
IUCN IVNational Wildlife Protection Area
4.31 km² overlap
Sakiyama wan-Amitori wan
IUCN IbNature Conservation Area
4.30 km² overlap
Yonaha-wan
IUCN Not ReportedWetland of International Importance (Ramsar Site)
3.35 km² overlap
Ikema
IUCN IVNational Wildlife Protection Area
2.82 km² overlap
Protected Water Surface
2.50 km² overlap
Karimata/Shimajiri
IUCN IVPrefectural Wildlife Protection Area
2.19 km² overlap
Urabu dake
IUCN VPrefectural Nature Conservation Area
2.10 km² overlap
Nagura Amparu
IUCN IIWetland of International Importance (Ramsar Site)
1.53 km² overlap
Kubura dake
IUCN VPrefectural Nature Conservation Area
1.28 km² overlap
Agarisaki
IUCN VPrefectural Nature Conservation Area
0.49 km² overlap
Protected Water Surface
0.31 km² overlap
Nakanokamishima
IUCN IVNational Wildlife Protection Area
0.23 km² overlap
Funaura Xxx
IUCN IVRare Population Protected Forest
0.04 km² overlap
Higawachisaki
IUCN VPrefectural Nature Conservation Area
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 212 distinct species · 46 173 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 12 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 浦内川 : 12 espèces reliées par 9 interactions GloBI sur 2 types (connectance 13.6%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
23,4°C
Annual rain
2 219mm
Moisture idx (CMI)
0,52
Runoff
1 419mm/an
PET
1 060mm
AET
1 060mm
Mean slope
5,7°
Water table
236cm
Forest
40%
Crops
20%
Urban
4%
Protected
40%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)