HydroBASINS lev08 watershed · #2080029180
Bassin de Pehtoja
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 3 administrative regions across 2 countries : Finland Proper, Kumlinge, NA
Sub-basin area
911,1km²
Upstream area
911,1km²
Discharge
0,15m³/s
Mean elev.
8m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 692.3 km²75.6% of basin
- 60.9 km²6.6% of basin
- 36.1 km²3.9% of basin
30 intersecting protected areas
Seksmiilarin saaristo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.32 km² overlap
Kolkanaukko
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.97 km² overlap
Kolkanaukko
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.97 km² overlap
Ahmasvesi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.58 km² overlap
Lautvesi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.37 km² overlap
Private Nature Reserve
2.11 km² overlap
Metsälain erityisen tärkeät elinympäristöt Varsinais-Suomi
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
1.99 km² overlap
Kivijärven metsät
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.74 km² overlap
Selkämeren kansallispuisto
IUCN IINational Park
1.47 km² overlap
21 more protected areassorted by overlap area
Katanpää
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.37 km² overlap
Private Nature Reserve
1.37 km² overlap
State Nature Reserve
1.28 km² overlap
Lanskeri, Katkuru
IUCN IVPrivate Nature Reserve
1.13 km² overlap
State Nature Reserve
0.90 km² overlap
Iso-Rahin luonnonsuojelualue
IUCN IVState Nature Reserve
0.86 km² overlap
Private Nature Reserve
0.76 km² overlap
Norrö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.74 km² overlap
Metsätalouden ympäristötukikohteet Varsinais-Suomi
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.61 km² overlap
Langstet
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.58 km² overlap
Langstet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.58 km² overlap
Hulaholmi - Kluuvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.51 km² overlap
State Nature Reserve
0.48 km² overlap
Kustavin vuoret
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.45 km² overlap
Private Nature Reserve
0.43 km² overlap
Iniön saaret
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.42 km² overlap
State Nature Reserve
0.42 km² overlap
State Nature Reserve
0.36 km² overlap
Näset
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.33 km² overlap
Näset naturreservat
IUCN Not AssignedPrivate Nature Reserve
0.33 km² overlap
State Nature Reserve
0.32 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 477 distinct species · 138 909 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Pehtoja : 14 espèces reliées par 124 interactions GloBI sur 5 types (connectance 20.8%, filtre Serrano α=0.2). 21 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°
4,8°C
Annual rain
616mm
Moisture idx (CMI)
0,11
Runoff
383mm/an
PET
547mm
AET
405mm
Mean slope
0,9°
Water table
49cm
Forest
91%
Crops
18%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)