HydroBASINS lev08 watershed · #2080180060
Bassin de Perhonjoki
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
219,1km²
Upstream area
3 028,6km²
Discharge
24,05m³/s
Mean elev.
80m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Perhonjoki1149 km²
- Bassin de Venetjoki689 km²
2 dept-equivalent regions (GADM L2)
- 206.3 km²93.6% of basin
- 14.2 km²6.4% of basin
18 intersecting protected areas
Pilvinevan soidensuojelualue
IUCN IbProtected Mire
14.13 km² overlap
Pilvineva
IUCN Not ReportedSpecial Protection Area (Birds Directive)
14.02 km² overlap
Pilvineva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
14.02 km² overlap
Pilvineva Mires
IUCN Not ReportedWetland of International Importance (Ramsar Site)
12.65 km² overlap
Pilvineva 3
IUCN IVPrivate Nature Reserve
0.44 km² overlap
Metsälain erityisen tärkeät elinympäristöt Keski-Pohjanmaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.39 km² overlap
Räyringin lehdot
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.32 km² overlap
State Nature Reserve
0.24 km² overlap
Pilvineva 4
IUCN IVPrivate Nature Reserve
0.24 km² overlap
9 more protected areassorted by overlap area
Metsätalouden ympäristötukikohteet Keski-Pohjanmaa
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.17 km² overlap
Pilvineva 7
IUCN IVPrivate Nature Reserve
0.14 km² overlap
Räyringin lehdot
IUCN IVPrivate Nature Reserve
0.08 km² overlap
Tunkkari
IUCN IVPrivate Nature Reserve
0.04 km² overlap
Sikahuhta
IUCN IVPrivate Nature Reserve
0.03 km² overlap
Private Nature Reserve
0.03 km² overlap
Koti-Lahti
IUCN IVPrivate Nature Reserve
0.02 km² overlap
Private Nature Reserve
0.00 km² overlap
Metsälain erityisen tärkeät elinympäristöt Pohjanmaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
912 distinct species · 7 337 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 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 Perhonjoki : 26 espèces reliées par 78 interactions GloBI sur 4 types (connectance 13.1%, filtre Serrano α=0.2). 9 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°
2,4°C
Annual rain
550mm
Moisture idx (CMI)
0,04
Runoff
237mm/an
PET
529mm
AET
392mm
Mean slope
3,0°
Water table
103cm
Forest
60%
Crops
25%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)