HydroBASINS lev08 watershed · #2080202130
Bassin de Karvianjoki
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 : Pirkanmaa, Satakunta
Sub-basin area
303,2km²
Upstream area
303,2km²
Discharge
2,8m³/s
Mean elev.
137m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 210.2 km²68.9% of basin
- 94.8 km²31.1% of basin
27 intersecting protected areas
Häädetkeidas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.62 km² overlap
Protected Mire
8.46 km² overlap
Pitkäniemenkeidas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.02 km² overlap
Protected Mire
6.25 km² overlap
Puurokeidas-Hannankeidas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.74 km² overlap
Pohjankangas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.60 km² overlap
Häädetkeitaan luonnonpuisto
IUCN IaStrict Nature Reserve
5.03 km² overlap
Suomijärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.81 km² overlap
Protected Mire
3.17 km² overlap
18 more protected areassorted by overlap area
Rastiaisneva
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.10 km² overlap
Private Nature Reserve
2.80 km² overlap
Horjunkeidas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.49 km² overlap
Private Nature Reserve
0.46 km² overlap
Ihanamäen metsä
IUCN IVPrivate Nature Reserve
0.34 km² overlap
Private Nature Reserve
0.16 km² overlap
Ihanamäen metsä 2
IUCN IVPrivate Nature Reserve
0.15 km² overlap
Metsälain erityisen tärkeät elinympäristöt Pirkanmaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.15 km² overlap
Keidaslammin kangas
IUCN IVPrivate Nature Reserve
0.14 km² overlap
Häädetjärven metsä
IUCN IVPrivate Nature Reserve
0.09 km² overlap
Metsätalouden ympäristötukikohteet Satakunta
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.06 km² overlap
Malmbergin metsä
IUCN IVPrivate Nature Reserve
0.05 km² overlap
Metsälain erityisen tärkeät elinympäristöt Satakunta
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.04 km² overlap
Metsätalouden ympäristötukikohteet Pirkanmaa
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.04 km² overlap
Private Nature Reserve
0.03 km² overlap
Häädetkeidas (581-431-14-2)
IUCN IVPrivate Nature Reserve
0.02 km² overlap
Vuorikon-Villasen metsä
IUCN IVPrivate Nature Reserve
0.02 km² overlap
Private Nature Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
900 distinct species · 9 982 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Karvianjoki : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 88 interactions GloBI sur 5 types (connectance 14.8%, 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°
3,0°C
Annual rain
608mm
Moisture idx (CMI)
0,10
Runoff
292mm/an
PET
548mm
AET
416mm
Mean slope
3,5°
Water table
110cm
Forest
91%
Crops
11%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)