Ruisseau· 13 segments
七北田川
Crosses 4 administrative regions : Rifu, Sendai, Tagajō, Taiwa
Total length
42km
Max discharge
6,9m³/s
Max Strahler
3
Segments matched
13
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
6 intersecting protected areas
Funagata renpo
IUCN VPrefectural Natural Park
Sendai
IUCN IVPrefectural Wildlife Protection Area
Izumigatake
IUCN IVPrefectural Wildlife Protection Area
Kenminno mori
IUCN IVPrefectural Wildlife Protection Area
Kemmin no mori
IUCN VGreen Space Environment Conservation Area(Miyagi)
Marutazawa
IUCN VGreen Space Environment Conservation Area(Miyagi)
1 page = 1 named river (aggregation of 13 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
125 distinct species · 232 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).
Indicateurs du tissu écologique
Tissu écologique de 七北田川 : 30 espèces reliées par 45 interactions GloBI sur 5 types (connectance 6.8%, 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).
Hydrology (HydroRIVERS v10)
Total length
42km
Max discharge
6,9m³/s
Max Strahler
3
Segments matched
13
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.