HydroBASINS lev08 watershed · #2080166610
Bassin de Siikajoki
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 1 administrative regions : Northern Ostrobothnia
Sub-basin area
496km²
Upstream area
2 825,6km²
Discharge
25,44m³/s
Mean elev.
73m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Lamujoki779 km²
- Bassin de Siikajoki311 km²
1 dept-equivalent regions (GADM L2)
- 499.3 km²100.0% of basin
15 intersecting protected areas
Veneneva-Pelso
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.09 km² overlap
Veneneva-Pelso
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.09 km² overlap
Veneneva-Pelso Mires
IUCN Not ReportedWetland of International Importance (Ramsar Site)
20.13 km² overlap
Venenevan luonnonsuojelualue
IUCN IbState Nature Reserve
16.72 km² overlap
Pelson luonnonpuisto
IUCN IaStrict Nature Reserve
6.58 km² overlap
Metsälain erityisen tärkeät elinympäristöt Pohjois-Pohjanmaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
1.01 km² overlap
Ojalan suojelualue
IUCN IVPrivate Nature Reserve
0.14 km² overlap
Private Nature Reserve
0.11 km² overlap
Private Nature Reserve
0.10 km² overlap
6 more protected areassorted by overlap area
Haisuntaus
IUCN IVPrivate Nature Reserve
0.08 km² overlap
Metsätalouden ympäristötukikohteet Pohjois-Pohjanmaa
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.07 km² overlap
Laitakangas-Tuohisaari
IUCN IVPrivate Nature Reserve
0.04 km² overlap
Heikkilän laitumet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.02 km² overlap
Veikon palsta
IUCN IVPrivate Nature Reserve
0.01 km² overlap
Matinsuo, Suomi100
IUCN IVPrivate Nature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
980 distinct species · 17 112 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 Siikajoki : 24 espèces reliées par 118 interactions GloBI sur 5 types (connectance 16.8%, 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).
Hydroclimate (BasinATLAS lev08)
Mean T°
1,9°C
Annual rain
501mm
Moisture idx (CMI)
0,01
Runoff
275mm/an
PET
495mm
AET
373mm
Mean slope
1,3°
Water table
49cm
Forest
82%
Crops
17%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)