HydroBASINS lev08 watershed · #4080043330

Bassin de 五十川

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 4 administrative regions : Awashimaura, Murakami, Sakata, Tsuruoka

Coastal basinPfafstetter: 41301337

Sub-basin area

689,9km²

Upstream area

689,9km²

Discharge

8,03m³/s

Mean elev.

262m

Administrative coverage

4 dept-equivalent regions (GADM L2)

Murakami
Niigata · Japan
343.3 km²
49.7% of basin
Tsuruoka
Yamagata · Japan
306.0 km²
44.3% of basin
Awashimaura
Niigata · Japan
9.8 km²
1.4% of basin
Sakata
Yamagata · Japan
7.5 km²
1.1% of basin

16 intersecting protected areas

Senami sasagawanagare awashima
IUCN V
Prefectural Natural Park
35.11 km² overlap
Shonai kaihin
IUCN V
Prefectural Natural Park
28.96 km² overlap
Common fishery right area(Niigata)
IUCN VI
Common fishery right area
13.29 km² overlap
Mayasan
IUCN IV
Prefectural Wildlife Protection Area
13.22 km² overlap
Common fishery right area(Yamagata)
IUCN VI
Common fishery right area
11.21 km² overlap
Awashima
IUCN IV
Prefectural Wildlife Protection Area
9.68 km² overlap
Atsumidake
IUCN IV
Prefectural Wildlife Protection Area
5.09 km² overlap
Sanpoku
IUCN IV
Prefectural Wildlife Protection Area
4.71 km² overlap
Takadateyama
IUCN IV
Prefectural Wildlife Protection Area
4.64 km² overlap

7 more protected areassorted by overlap area

Katsuradani
IUCN IV
Prefectural Wildlife Protection Area
3.82 km² overlap
Mogamigawa kako
IUCN IV
National Wildlife Protection Area
3.06 km² overlap
Sanze
IUCN IV
Prefectural Wildlife Protection Area
1.15 km² overlap
Tateshima
IUCN IV
Prefectural Wildlife Protection Area
0.52 km² overlap
Kihi jinja shaso
IUCN V
Prefectural Nature Conservation Area
0.12 km² overlap
Senami
IUCN IV
Prefectural Wildlife Protection Area
0.09 km² overlap
Myojiniwa
IUCN V
Prefectural Nature Conservation Area
0.02 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

920 distinct species · 1 967 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 37 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de 五十川 : 28 espèces reliées par 39 interactions GloBI sur 5 types (connectance 5.0%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.050

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

10,9°C

Annual rain

2 025mm

Moisture idx (CMI)

0,57

Runoff

1 193mm/an

PET

878mm

AET

866mm

Mean slope

15,6°

Water table

489cm

Forest

91%

Crops

Urban

Protected

13%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)