Rivière· 7 segments
Jänisjoki
Crosses 2 administrative regions : North Karelia, Sortaval' gorsovet
Total length
90km
Max discharge
17,7m³/s
Max Strahler
4
Segments matched
7
River geography2 admin regions · 0 communes
2 administrative regions crossed (GADM L2)
- North KareliaEastern Finland · Finland52.0 kmin this dpt
- Sortaval' gorsovetKarelia · Russia0.0 kmin this dpt
16 intersecting protected areas
Metsälain erityisen tärkeät elinympäristöt Pohjois-Karjala
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
Metsätalouden ympäristötukikohteet Pohjois-Karjala
IUCN Not AssignedForestry environmental aid contracts (OECM)
Värtsilän laakso (SPA)
IUCN Not ReportedSpecial Protection Area (Birds Directive)
State Nature Reserve
Luostarinvaaransuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Värtsilän laakson luontokokonaisuus
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
State Nature Reserve
Herajärven metsä
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Private Nature Reserve
7 more protected areassorted by area
State Nature Reserve
Purolan luonnonsuojelualue
IUCN IVPrivate Nature Reserve
Private Nature Reserve
Private Nature Reserve
Private Nature Reserve
Private Nature Reserve
Private Nature Reserve
1 page = 1 named river (aggregation of 7 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
232 distinct species · 650 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Jänisjoki : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 7 types (connectance 10.8%, filtre Serrano α=0.2). 14 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
90km
Max discharge
17,7m³/s
Max Strahler
4
Segments matched
7
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.