HydroBASINS lev08 watershed · #4080476680
Bassin de 猿ヶ石川
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 8 administrative regions : Hanamaki, Kamaishi, Kawai, Kitakami, Sumita +3
Sub-basin area
953,1km²
Upstream area
953,1km²
Discharge
24,99m³/s
Mean elev.
521m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
8 dept-equivalent regions (GADM L2)
- 792.9 km²83.1% of basin
- 138.1 km²14.5% of basin
- 8.9 km²0.9% of basin
- 3.8 km²0.4% of basin
- 3.8 km²0.4% of basin
- 3.6 km²0.4% of basin
- 2.1 km²0.2% of basin
- 0.8 km²0.1% of basin
16 intersecting protected areas
Kitakami Highlands
IUCN VGreen Corridor
52.13 km² overlap
Hayachinesan Shuhen
IUCN IbForest Ecosystem Reserve
14.16 km² overlap
Hayachinesan
IUCN IVPrefectural Wildlife Protection Area
13.03 km² overlap
Hayachine
IUCN IIQuasi National Park
12.95 km² overlap
Tase dam
IUCN IVPrefectural Wildlife Protection Area
7.94 km² overlap
Tonoshi kamigonakayama
IUCN IVPrefectural Wildlife Protection Area
2.57 km² overlap
Ohora Karst
IUCN VPrefectural Nature Conservation Area
2.56 km² overlap
Arakawa kogen
IUCN VPrefectural Nature Conservation Area
2.29 km² overlap
Tonoshi otomo
IUCN IVPrefectural Wildlife Protection Area
1.81 km² overlap
7 more protected areassorted by overlap area
Sennintoge
IUCN IVPrefectural Wildlife Protection Area
0.71 km² overlap
Tonoshi nabekura jo
IUCN IVPrefectural Wildlife Protection Area
0.59 km² overlap
Takamuro
IUCN IVPrefectural Wildlife Protection Area
0.46 km² overlap
Kotohata shitsugen
IUCN VPrefectural Nature Conservation Area
0.24 km² overlap
Wayama shitsugen
IUCN VPrefectural Nature Conservation Area
0.20 km² overlap
Rare Population Protected Forest
0.16 km² overlap
Koshiouzan
IUCN VEnvironmental Green Space Conservation Area(Iwate)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
969 distinct species · 3 319 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 10 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 猿ヶ石川 : 8 espèces reliées par 10 interactions GloBI sur 2 types (connectance 18.2%, filtre Serrano α=0.2). 3 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°
8,1°C
Annual rain
1 449mm
Moisture idx (CMI)
0,44
Runoff
877mm/an
PET
814mm
AET
808mm
Mean slope
11,2°
Water table
362cm
Forest
58%
Crops
9%
Urban
1%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)