Ruisseau
梶無川
Crosses 4 administrative regions : Kasumigaura, Namegata, Omitama, Water body
Total length
15km
Max discharge
0,6m³/s
Max Strahler
1
Segments matched
1
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- NamegataIbaraki · Japan5.5 kmin this dpt
- OmitamaIbaraki · Japan3.6 kmin this dpt
- Water bodyIbaraki · Japan1.3 kmin this dpt
- KasumigauraIbaraki · Japan0.0 kmin this dpt
4 intersecting protected areas
Suigo-Tsukuba
IUCN VQuasi National Park
Ayumizaki
IUCN IVPrefectural Wildlife Protection Area
Takasuzaki
IUCN IVPrefectural Wildlife Protection Area
Sato
IUCN VGreen Space Environment Conservation Area(Ibaraki)
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
111 distinct species · 194 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 7 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 梶無川 : 6 espèces reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
15km
Max discharge
0,6m³/s
Max Strahler
1
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.