HydroBASINS lev08 watershed · #4080046130
Bassin de 役勝川
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 9 administrative regions : Amagi, Amami, Isen, Kikai, Setouchi +4
Sub-basin area
1 329,8km²
Upstream area
1 329,8km²
Discharge
15,05m³/s
Mean elev.
129m
Administrative coverage
9 dept-equivalent regions (GADM L2)
- 319.4 km²24.1% of basin
- 235.7 km²17.8% of basin
- 110.9 km²8.4% of basin
- 97.7 km²7.4% of basin
- 95.5 km²7.2% of basin
- TokunoshimaKagoshima · Japan89.6 km²6.8% of basin
- 73.4 km²5.5% of basin
- 65.8 km²5.0% of basin
1 moreFull L2 list
- Kikai59.5 km² · 4.5%
29 intersecting protected areas
Amamigunto
IUCN IINational Park
501.33 km² overlap
Common fishery right area
196.23 km² overlap
Amami-Oshima Island, Tokunoshima Island, Northern part of Okinawa Island, and Iriomote Island
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
141.49 km² overlap
Amami Gunto
IUCN IbForest Ecosystem Reserve
48.08 km² overlap
Amamigunto Xxx To
IUCN IVRare Population Protected Forest
13.30 km² overlap
Inutabu
IUCN IVPrefectural Wildlife Protection Area
11.80 km² overlap
Hyakunodai
IUCN IVPrefectural Wildlife Protection Area
5.00 km² overlap
Kasarizaki
IUCN IVPrefectural Wildlife Protection Area
4.18 km² overlap
Sumiyo
IUCN IVPrefectural Wildlife Protection Area
3.98 km² overlap
20 more protected areassorted by overlap area
Honohoshi
IUCN IVPrefectural Wildlife Protection Area
3.42 km² overlap
Yuwandake
IUCN IVNational Wildlife Protection Area
3.15 km² overlap
Boma
IUCN IVPrefectural Wildlife Protection Area
3.10 km² overlap
Kinsakubaru
IUCN IVPrefectural Wildlife Protection Area
2.78 km² overlap
Yatsuno
IUCN IVPrefectural Wildlife Protection Area
2.54 km² overlap
Akasaki
IUCN IVPrefectural Wildlife Protection Area
1.55 km² overlap
Kanengodake
IUCN IVPrefectural Wildlife Protection Area
1.46 km² overlap
Ose kaigan
IUCN IVPrefectural Wildlife Protection Area
1.30 km² overlap
Uchimi koen
IUCN IVPrefectural Wildlife Protection Area
0.75 km² overlap
Yanma
IUCN IVPrefectural Wildlife Protection Area
0.75 km² overlap
Gamozaki
IUCN IVPrefectural Wildlife Protection Area
0.43 km² overlap
Nagakumotoge
IUCN IVPrefectural Wildlife Protection Area
0.38 km² overlap
Sekko shochugakko
IUCN IVPrefectural Wildlife Protection Area
0.13 km² overlap
Ogamiyama
IUCN IVPrefectural Wildlife Protection Area
0.09 km² overlap
Yamato shochugakko
IUCN IVPrefectural Wildlife Protection Area
0.04 km² overlap
Naze shogakko
IUCN IVPrefectural Wildlife Protection Area
0.03 km² overlap
Kaminomine shogakko
IUCN IVPrefectural Wildlife Protection Area
0.03 km² overlap
Rankanyama
IUCN IVPrefectural Wildlife Protection Area
0.02 km² overlap
Setouchi Town The Sea of NERIYAKANAYA
IUCN Not ApplicableOECM
0.01 km² overlap
Amami Oshima, Rice Village, Akina・Ikusato・Oogati
IUCN Not ApplicableOECM
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 659 distinct species · 40 663 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 役勝川 : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 2 types (connectance 8.3%, filtre Serrano α=0.2). 4 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°
21,1°C
Annual rain
2 765mm
Moisture idx (CMI)
0,62
Runoff
1 407mm/an
PET
1 033mm
AET
1 033mm
Mean slope
10,5°
Water table
357cm
Forest
65%
Crops
21%
Urban
3%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)