HydroBASINS lev08 watershed · #4080043500
Bassin de 馬場目川
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 10 administrative regions : Akita, Gojōme, Hachirōgata, Ikawa, Kamikoani +5
Sub-basin area
1 507,5km²
Upstream area
1 507,5km²
Discharge
0,29m³/s
Mean elev.
99m
Administrative coverage
10 dept-equivalent regions (GADM L2)
- 420.6 km²27.9% of basin
- 240.1 km²15.9% of basin
- 238.5 km²15.8% of basin
- 211.4 km²14.0% of basin
- 157.1 km²10.4% of basin
- 52.7 km²3.5% of basin
- 41.5 km²2.8% of basin
- 38.2 km²2.5% of basin
2 moreFull L2 list
- Hachirōgata27.0 km² · 1.8%
- Kamikoani6.1 km² · 0.4%
30 intersecting protected areas
Oga
IUCN VQuasi National Park
92.29 km² overlap
Taihe zan
IUCN VPrefectural Natural Park
56.99 km² overlap
Nibetsu
IUCN IVPrefectural Wildlife Protection Area
32.48 km² overlap
Common fishery right area
25.44 km² overlap
Minamiiso
IUCN IVPrefectural Wildlife Protection Area
20.80 km² overlap
Hachimantai Taiheizan
IUCN VGreen Corridor
12.73 km² overlap
Hachirogata
IUCN IVPrefectural Wildlife Protection Area
10.48 km² overlap
Araya
IUCN IVPrefectural Wildlife Protection Area
9.88 km² overlap
Gojomeikawa
IUCN IVPrefectural Wildlife Protection Area
7.03 km² overlap
21 more protected areassorted by overlap area
Moriyama
IUCN IVPrefectural Wildlife Protection Area
6.87 km² overlap
Ogahanto Kaiganshokusei
IUCN IVBiocenosis Protected Forest
6.55 km² overlap
Ishikurayama
IUCN IVPrefectural Wildlife Protection Area
5.86 km² overlap
Wakimoto
IUCN IVPrefectural Wildlife Protection Area
5.11 km² overlap
Oiwake
IUCN IVPrefectural Wildlife Protection Area
4.24 km² overlap
Tegatayama
IUCN IVPrefectural Wildlife Protection Area
3.99 km² overlap
Kuguriiwa
IUCN IVPrefectural Wildlife Protection Area
3.60 km² overlap
Unosawa
IUCN IVPrefectural Wildlife Protection Area
3.33 km² overlap
Kitaura
IUCN IVPrefectural Wildlife Protection Area
3.22 km² overlap
Kanpuzan
IUCN IVPrefectural Wildlife Protection Area
3.05 km² overlap
Koyachi
IUCN IVPrefectural Wildlife Protection Area
2.92 km² overlap
Itagawa koen
IUCN IVPrefectural Wildlife Protection Area
2.76 km² overlap
Tentokujiyama
IUCN IVPrefectural Wildlife Protection Area
2.35 km² overlap
Otakiyama
IUCN IVPrefectural Wildlife Protection Area
1.89 km² overlap
Hachirogata seibu
IUCN IVPrefectural Wildlife Protection Area
1.71 km² overlap
Ogata sogen
IUCN IVNational Wildlife Protection Area
1.59 km² overlap
Ochiai kaigan
IUCN IVPrefectural Wildlife Protection Area
0.97 km² overlap
Taiheizan Shuhen
IUCN IVBiocenosis Protected Forest
0.94 km² overlap
Motokiyama
IUCN IVPrefectural Wildlife Protection Area
0.23 km² overlap
Nibetsu Sugi Idenshigen
IUCN IVRare Population Protected Forest
0.20 km² overlap
Karekinagane
IUCN IVPrefectural Wildlife Protection Area
0.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 217 distinct species · 36 685 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 馬場目川 : 28 espèces reliées par 64 interactions GloBI sur 4 types (connectance 9.1%, filtre Serrano α=0.2). 10 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°
10,7°C
Annual rain
1 623mm
Moisture idx (CMI)
0,48
Runoff
1 239mm/an
PET
835mm
AET
819mm
Mean slope
5,6°
Water table
165cm
Forest
45%
Crops
16%
Urban
12%
Protected
15%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)