Rivière
Viannan kanava
⚠ Partial coverage : only 1 named segment matched so far. The real rivière extends much further (Strahler order 5 indicates a major river). Cross-source ingest in progress — values below reflect only the matched segment.
Crosses 1 administrative regions : North Savonia
Max discharge
50,6m³/s
Max Strahler
5
Segments matched
1
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- North SavoniaEastern Finland · Finland5.3 kmin this dpt
14 intersecting protected areas
Metsälain erityisen tärkeät elinympäristöt Pohjois-Savo
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
Maaningan lintujärvet
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Patalahti-Patajärvi 10
IUCN IVPrivate Nature Reserve
Patalahti-Patajärvi 9
IUCN IVPrivate Nature Reserve
Patalahti-Patajärvi 20
IUCN IVPrivate Nature Reserve
Patalahti-Patajärvi 12
IUCN IVPrivate Nature Reserve
Patalahti-Patajärvi 11
IUCN IVPrivate Nature Reserve
Patalahti-Patajärvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Patalahti-Patajärvi IV
IUCN IVPrivate Nature Reserve
5 more protected areassorted by area
Patalahti-Patajärvi VI
IUCN IVPrivate Nature Reserve
Patalahti-Patajärvi 22
IUCN IVPrivate Nature Reserve
Patalahti-Patajärvi 21
IUCN IVPrivate Nature Reserve
Patalahti-Patajärvi 26
IUCN IVPrivate Nature Reserve
Vipulan suojelualue
IUCN IVPrivate Nature Reserve
1 page = 1 named river (aggregation of 1 HydroRIVERS v10 segment). Spatial join cached after first hit.
Species present
465 distinct species · 4 790 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Viannan kanava : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 138 interactions GloBI sur 6 types (connectance 16.8%, filtre Serrano α=0.2). 11 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)
Matched len.
2,1km
Max discharge
50,6m³/s
Max Strahler
5
Segments matched
1
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.