Quasi National Park · jpn
Chokai
- Area
- 328 km²
- IUCN cat.
- V
- Year
- 1963
Overview
- Designation
- Quasi National Park
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 1963
- Managing authority
- Akita and Yamagata Prefecture
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
1 973 distinct species · 5 840 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Chokai : 22 espèces reliées par 35 interactions GloBI sur 6 types (connectance 8.6%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology1 basins · 0 lakes · 26 rivers
Hydrology metrics for this exact territory
Stream length here
95,6km
Basins crossed
1
Max stream order
3
Max drainage
2 096km²
Discharge in basins
0,3m³/s
Mean precip.
1 843mm/an
Mean T°
10,0°C
Moisture idx
0,54
Max snow
31%
Mean runoff
1 368mm/an
Mean elev. (basins)
293m
Watersheds crossing here
Rivers / streams (26, ord ≥ 4)
- 白雪川ord 3len here12.88 km48%total27 km
- 赤川ord 2len here9.47 km100%total9 km
- 奈曽川ord 2len here7.62 km58%total13 km
- 南ノコマイord 1len here7.61 km99%total8 km
- 鶯川ord 2len here7.37 km47%total16 km
- 子吉川ord 4len here6.78 km10%total65 km
- 月光川ord 3len here6.32 km35%total18 km
- 赤沢川ord 2len here5.19 km87%total6 km
- 日向川ord 4len here3.74 km13%total29 km
- 元滝川ord 1len here3.60 km84%total4 km
- 下玉田川ord 1len here3.15 km100%total3 km
- 朱の又川ord 1len here3.00 km100%total3 km
14 more river segmentssorted by Strahler order + length
- 荒木川ord 1len here2.87 km75%total4 km
- 白沢川ord 1len here2.52 km100%total3 km
- 鹿の俣川ord 2len here2.08 km100%total2 km
- 藤倉川ord 1len here1.93 km100%total2 km
- 石禿川ord 1len here1.74 km100%total2 km
- 草津川ord 1len here1.71 km49%total4 km
- 象潟川ord 2len here1.47 km72%total2 km
- 三本堰川ord 1len here1.34 km100%total1 km
- 洗沢川ord 2len here1.12 km11%total10 km
- 牛渡川ord 1len here0.79 km63%total1 km
- 滝渕川ord 3len here0.72 km14%total5 km
- 冷渡川ord 1len here0.56 km9%total6 km
- 清水川ord 2len here≈ tangenttotal1 km
- 川袋小川ord 2len here≈ tangenttotal6 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 39.09820, 140.07145
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.