Common fishery right area(Ibaraki)
IUCN VICommon fishery right area · 2013
825 km²
Town · JPN
Ōarai
Japan
CfaTemperate, no dry season, hot summer(100 %)
Species observed
691
Observations
3 213
Area
17,3km²
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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Ōarai : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 3 types (connectance 14.3%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
32
Interactions affichées
71
Connectance
0.143
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
691 distinct species · 3 213 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
14,9°C
Annual rain
1 449mm
Warmest m°
26,6°C
Coldest m°
2,9°C
Elevation: 13 m on average (min -14 m, max 35 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
14,9°C
Annual rain
1 449mm
Warmest month
26,6°C
Coldest month
2,9°C
Mean alt.
13m
Min
-14m
Max
35m
Std. dev.
9m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,9
Org. C
42,8g/kg
Clay
26,2%
Sand
39,1%
Silt
34,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,8
Org. C
62,9g/kg
Clay
25,8%
Sand
39,6%
Silt
34,6%
5–15 cm
pH H₂O
5,9
Org. C
39,9g/kg
Clay
25,7%
Sand
39,2%
Silt
34,9%
15–30 cm
pH H₂O
5,9
Org. C
25,7g/kg
Clay
27,0%
Sand
38,6%
Silt
34,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest23.3%
Crops15.6%
Built-up8.6%
Bare soil0.9%
Other (grassland, water…)51.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology3 basins · 1 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
3,4km
Lake surface here
0,31km²
Basins crossed
3
Max stream order
5
Max drainage
3 302km²
Discharge in basins
20,1m³/s
Mean precip.
1 425mm/an
Mean T°
13,9°C
Moisture idx
0,31
Max snow
3%
Mean runoff
700mm/an
Mean elev. (basins)
44m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
6hab/km²
Night light
5,7nW
Built-up
855,1%
Pesticides
94,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas5
IUCN IV · 3IUCN VI · 1IUCN V · 1🌊 Marine · 3
Oarai
IUCN VPrefectural Natural Park · 1951
22 km²
Hinuma
IUCN IVNational Wildlife Protection Area · 2014
21 km²
Hinuma
IUCN IVWetland of International Importance (Ramsar Site) · 2015
10 km²
Ibaraki Prefectural Marine Zone Fisheries Coordination Regulations Article42 (i) of the table
IUCN IVProtected Water Surface · 1976
1 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN