HydroBASINS lev08 watershed · #4080041420
Bassin de 亀の川
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 : Arida, Aridagawa, Kainan, Kinokawa, Wakayama
Sub-basin area
175,4km²
Upstream area
175,5km²
Discharge
4,9m³/s
Mean elev.
86m
Administrative coverage
5 dept-equivalent regions (GADM L2)
- 80.8 km²46.1% of basin
- 73.2 km²41.8% of basin
- 7.2 km²4.1% of basin
- 0.8 km²0.4% of basin
- 0.3 km²0.2% of basin
19 intersecting protected areas
Common fishery right area
7.82 km² overlap
Wakaura
IUCN IVPrefectural Wildlife Protection Area
5.95 km² overlap
Hatsushima
IUCN IVPrefectural Wildlife Protection Area
3.59 km² overlap
Kii fudokino oka
IUCN IVPrefectural Wildlife Protection Area
3.02 km² overlap
Aridagawa
IUCN IVPrefectural Wildlife Protection Area
1.32 km² overlap
Kameike
IUCN IVPrefectural Wildlife Protection Area
1.15 km² overlap
Higashisando
IUCN IVPrefectural Wildlife Protection Area
1.05 km² overlap
Setonaikai
IUCN VNational Park
0.87 km² overlap
Jinoshima-okinoshima
IUCN IVPrefectural Wildlife Protection Area
0.73 km² overlap
10 more protected areassorted by overlap area
Kinokawa
IUCN IVPrefectural Wildlife Protection Area
0.68 km² overlap
Okazaki
IUCN IVPrefectural Wildlife Protection Area
0.57 km² overlap
Amenomori
IUCN IVPrefectural Wildlife Protection Area
0.56 km² overlap
Chohoji
IUCN IVPrefectural Wildlife Protection Area
0.30 km² overlap
Sakaibara
IUCN IVPrefectural Wildlife Protection Area
0.27 km² overlap
Yoshizato
IUCN IVPrefectural Wildlife Protection Area
0.26 km² overlap
Kao Corporation Wakayama Plant
IUCN Not ApplicableOECM
0.12 km² overlap
Kamayama
IUCN IVPrefectural Wildlife Protection Area
0.08 km² overlap
Kainan shiminno mori
IUCN IVPrefectural Wildlife Protection Area
0.07 km² overlap
Moko Fudodani, Kainan City, Wakayama Prefecture
IUCN Not ApplicableOECM
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 302 distinct species · 4 843 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 亀の川 : 25 espèces reliées par 27 interactions GloBI sur 2 types (connectance 6.2%, filtre Serrano α=0.2). 5 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°
15,8°C
Annual rain
1 650mm
Moisture idx (CMI)
0,39
Runoff
891mm/an
PET
997mm
AET
992mm
Mean slope
7,6°
Water table
265cm
Forest
29%
Crops
9%
Urban
53%
Protected
12%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)