HydroBASINS lev08 watershed · #2080029220
Bassin de Sirppujoki
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 : Finland Proper, Satakunta
Sub-basin area
490,7km²
Upstream area
490,7km²
Discharge
3,02m³/s
Mean elev.
18m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 486.0 km²98.5% of basin
- 7.5 km²1.5% of basin
30 intersecting protected areas
Iso-Hölö
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.23 km² overlap
Iso-Hölö
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.23 km² overlap
Iso-Hölön luonnonsuojelualue
IUCN IVState Nature Reserve
5.77 km² overlap
Nukinrahka - Hirvilamminsuo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.16 km² overlap
Nukinrahka - Hirvilamminsuo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.16 km² overlap
State Nature Reserve
4.09 km² overlap
State Nature Reserve
1.03 km² overlap
Kivijärven metsät
IUCN IVPrivate Nature Reserve
0.89 km² overlap
Isorahkan erityisesti suojeltava laji
IUCN Not AssignedSite of Species Under Strict Protection
0.75 km² overlap
21 more protected areassorted by overlap area
Hankeransuon erityisesti suojeltava laji
IUCN Not AssignedSite of Species Under Strict Protection
0.70 km² overlap
Metsälain erityisen tärkeät elinympäristöt Varsinais-Suomi
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.67 km² overlap
Metsätalouden ympäristötukikohteet Varsinais-Suomi
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.47 km² overlap
Untamala
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.27 km² overlap
Iso-Hölön luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.23 km² overlap
State Nature Reserve
0.16 km² overlap
Laitilan metsät
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.16 km² overlap
Private Nature Reserve
0.11 km² overlap
Lamssin luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.10 km² overlap
Untamalan luonnonsuojelualue
IUCN IVState Nature Reserve
0.10 km² overlap
Private Nature Reserve
0.08 km² overlap
Irjan luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.08 km² overlap
Roiskon luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.08 km² overlap
Iso-Hölön luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.07 km² overlap
Private Nature Reserve
0.07 km² overlap
Uusitalon luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.06 km² overlap
Private Nature Reserve
0.06 km² overlap
Private Nature Reserve
0.06 km² overlap
Private Nature Reserve
0.06 km² overlap
Isohaka luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.05 km² overlap
Private Nature Reserve
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 690 distinct species · 95 755 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 Sirppujoki : 12 espèces reliées par 113 interactions GloBI sur 5 types (connectance 29.9%, 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°
4,6°C
Annual rain
634mm
Moisture idx (CMI)
0,13
Runoff
355mm/an
PET
555mm
AET
412mm
Mean slope
1,8°
Water table
62cm
Forest
84%
Crops
21%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)