HydroBASINS lev08 watershed · #2080029660
Bassin de Kälviänjoki
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 2 administrative regions : Central Ostrobothnia, Ostrobothnia
Sub-basin area
941,8km²
Upstream area
941,8km²
Discharge
0,3m³/s
Mean elev.
42m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 928.8 km²98.0% of basin
- 12.9 km²1.4% of basin
30 intersecting protected areas
State Nature Reserve
26.40 km² overlap
Etelänevan-Viitasalonnevan-Seljäsennevan alue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
25.04 km² overlap
Vattajanniemi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.56 km² overlap
State Nature Reserve
8.33 km² overlap
State Nature Reserve
7.65 km² overlap
Ritaneva-Vipusalonneva-Märsynneva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.29 km² overlap
Ritaneva-Vipusalonneva-Märsynneva
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.29 km² overlap
Vionneva
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.44 km² overlap
Vionneva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.44 km² overlap
21 more protected areassorted by overlap area
State Nature Reserve
6.20 km² overlap
Vionnevan luonnonsuojelualue
IUCN IbState Nature Reserve
5.88 km² overlap
Kokkolan saaristo (SPA)
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.22 km² overlap
Kokkolan saaristo/Kokkola Archipelago
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
3.22 km² overlap
Kokkolan saaristo (SCI)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.22 km² overlap
Lähdeneva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.46 km² overlap
Lähdeneva
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.46 km² overlap
Iso Ristineva - Pikku Ristineva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.96 km² overlap
State Nature Reserve
1.55 km² overlap
Ristineva 7
IUCN IVPrivate Nature Reserve
1.07 km² overlap
Lehdonjärvi
IUCN IVPrivate Nature Reserve
0.93 km² overlap
Metsälain erityisen tärkeät elinympäristöt Keski-Pohjanmaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.93 km² overlap
Seljäsenneva 10
IUCN IVPrivate Nature Reserve
0.93 km² overlap
State Nature Reserve
0.91 km² overlap
Seljäsenneva 9
IUCN IVPrivate Nature Reserve
0.88 km² overlap
Seljäsenneva 8
IUCN IVPrivate Nature Reserve
0.86 km² overlap
Vähäjärven lehto ja Ruotsalon letot
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.81 km² overlap
LÄHDENEVA
IUCN IVPrivate Nature Reserve
0.69 km² overlap
Private Nature Reserve
0.53 km² overlap
Seljäsenneva 6
IUCN IVPrivate Nature Reserve
0.51 km² overlap
Maakannuskarinlahti ja Viirretjoen suisto
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.50 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 354 distinct species · 48 102 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 Bassin de Kälviänjoki : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 5 types (connectance 14.9%, filtre Serrano α=0.2). 17 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
2,3°C
Annual rain
539mm
Moisture idx (CMI)
0,03
Runoff
224mm/an
PET
521mm
AET
386mm
Mean slope
1,2°
Water table
48cm
Forest
81%
Crops
2%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)