HydroBASINS lev08 watershed · #4080037190

Bassin de 泊川

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 7 administrative regions : Imakane, Kuromatsunai, Oshamanbe, Rankoshi, Setana +2

Coastal basinPfafstetter: 41200115

Sub-basin area

1 021,4km²

Upstream area

1 021,4km²

Discharge

9,1m³/s

Mean elev.

326m

Administrative coverage

7 dept-equivalent regions (GADM L2)

Shimamaki
Hokkaido · Japan
438.6 km²
42.9% of basin
Kuromatsunai
Hokkaido · Japan
321.7 km²
31.4% of basin
Setana
Hokkaido · Japan
134.7 km²
13.2% of basin
Suttsu
Hokkaido · Japan
83.4 km²
8.2% of basin
Oshamanbe
Hokkaido · Japan
15.0 km²
1.5% of basin
Imakane
Hokkaido · Japan
6.4 km²
0.6% of basin
Rankoshi
Hokkaido · Japan
0.2 km²
0.0% of basin

13 intersecting protected areas

Karibasanchi・Obirayama Shuhen
IUCN Ib
Forest Ecosystem Reserve
255.47 km² overlap
Kariba motta
IUCN V
Prefectural Natural Park
178.09 km² overlap
Common fishery right area(Hokkaido)
IUCN VI
Common fishery right area
23.88 km² overlap
Minami shiribeshi
IUCN VI
Coastline Marine Resource Development Area, designated sea area
19.16 km² overlap
Ohirayama
IUCN Ib
Nature Conservation Area
6.75 km² overlap
Hiyama
IUCN VI
Coastline Marine Resource Development Area, designated sea area
4.43 km² overlap
Utasai Buna
IUCN IV
Rare Population Protected Forest
0.93 km² overlap
Utasai
IUCN IV
Prefectural Wildlife Protection Area
0.93 km² overlap
Soibetsu Bunarin ( Beech Forest )
IUCN Not Applicable
OECM
0.51 km² overlap

4 more protected areassorted by overlap area

Shiroigawa bunarin
IUCN IV
Academic Nature Protection Area(Hokkaido)
0.17 km² overlap
Nishiosato
IUCN IV
Prefectural Wildlife Protection Area
0.15 km² overlap
Utasai shitsugen ( Utasai Marsh )
IUCN Not Applicable
OECM
0.05 km² overlap
Suttsu Kashiwa Idenshigen
IUCN IV
Rare Population Protected Forest
0.05 km² overlap

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

Species present

507 distinct species · 1 397 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 25 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 泊川 : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 4 types (connectance 11.1%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.111

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°

6,7°C

Annual rain

1 290mm

Moisture idx (CMI)

0,48

Runoff

907mm/an

PET

674mm

AET

639mm

Mean slope

13,6°

Water table

434cm

Forest

79%

Crops

Urban

Protected

20%

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