HydroBASINS lev08 watershed · #2080028980
Bassin de Perniönjoki
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 : Finland Proper, Tavastia Proper, Uusimaa
Sub-basin area
2 270,2km²
Upstream area
2 270,5km²
Discharge
26,07m³/s
Mean elev.
79m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 1685.1 km²73.8% of basin
- 544.3 km²23.8% of basin
- 53.8 km²2.4% of basin
30 intersecting protected areas
Torronsuon kansallispuisto
IUCN IINational Park
30.90 km² overlap
Torronsuo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
30.90 km² overlap
Torronsuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
30.90 km² overlap
Torronsuo National Park
IUCN Not ReportedWetland of International Importance (Ramsar Site)
30.90 km² overlap
Hyyppärän harjualue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
22.12 km² overlap
Liesjärvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.02 km² overlap
Liesjärven kansallispuisto
IUCN IINational Park
16.87 km² overlap
Rekijokilaakso
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.08 km² overlap
Hyyppärän luonnonsuojelualue
IUCN IVState Nature Reserve
5.08 km² overlap
21 more protected areassorted by overlap area
Teijon kansallispuisto
IUCN IINational Park
4.57 km² overlap
Metsälain erityisen tärkeät elinympäristöt Varsinais-Suomi
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
4.51 km² overlap
Teijon ylänkö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.12 km² overlap
Joensuunlahti-Venesillanlahti
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.34 km² overlap
Kiskonjoen vesistö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.32 km² overlap
Kiskonjoen vesistö
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.32 km² overlap
Omenajärvi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.30 km² overlap
Omenajärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.30 km² overlap
Raadesuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.13 km² overlap
Omenajärvi, yhteiset alueet
IUCN IVPrivate Nature Reserve
2.03 km² overlap
Metsätalouden ympäristötukikohteet Varsinais-Suomi
IUCN Not AssignedForestry environmental aid contracts (OECM)
2.00 km² overlap
Pyysuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.92 km² overlap
Pyysuon luonnonsuojelualue
IUCN IVState Nature Reserve
1.86 km² overlap
Kaukolanharju
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.85 km² overlap
Pohjan-Kiskon järvialue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.81 km² overlap
State Nature Reserve
1.70 km² overlap
Aneriojärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.56 km² overlap
Raadesuon luonnonsuojelualue
IUCN IVState Nature Reserve
1.39 km² overlap
Private Nature Reserve
1.38 km² overlap
Pehkijärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.34 km² overlap
Private Nature Reserve
1.31 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
12 174 distinct species · 471 402 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Perniönjoki : 9 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 106 interactions GloBI sur 5 types (connectance 35.3%, filtre Serrano α=0.2). 16 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°
4,5°C
Annual rain
609mm
Moisture idx (CMI)
0,08
Runoff
366mm/an
PET
561mm
AET
420mm
Mean slope
2,6°
Water table
130cm
Forest
71%
Crops
25%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)