HydroBASINS lev08 watershed · #2080028740
Bassin de Koskenkylänjoki
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 : Eastern Uusimaa
Sub-basin area
139km²
Upstream area
3 663,8km²
Discharge
28,39m³/s
Mean elev.
26m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 2 basins
- Bassin de Myrskylänjoki699 km²
- Bassin de Ilolanjoki350 km²
1 dept-equivalent regions (GADM L2)
- 138.1 km²98.8% of basin
15 intersecting protected areas
Pernajanlahtien ja Pernajan saariston merensuojelualue /Pernajabay and Pernaja Archipelago marine protection areas
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
13.38 km² overlap
Pernajanlahtien ja Pernajan saariston merensuojelualue
IUCN Not ReportedSpecial Protection Area (Birds Directive)
13.37 km² overlap
Pernajanlahtien ja Pernajan saariston merensuojelualue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.37 km² overlap
Pernajanlahti Bay
IUCN Not ReportedWetland of International Importance (Ramsar Site)
11.48 km² overlap
Private Nature Reserve
4.70 km² overlap
PERNAJANLAHDEN VESIALUE (
IUCN IVPrivate Nature Reserve
2.00 km² overlap
PERNAJANLAHTI 4(GERBYV.RÖ
IUCN IVPrivate Nature Reserve
1.98 km² overlap
PERNAJANLAHTI 5,PERNAJ.L.
IUCN IVPrivate Nature Reserve
1.49 km² overlap
PERNAJANLAHTI 3, FORSBYVI
IUCN IVPrivate Nature Reserve
0.63 km² overlap
6 more protected areassorted by overlap area
BAGGHOLMENIN LUONNONSUOJE
IUCN IVPrivate Nature Reserve
0.35 km² overlap
Metsätalouden ympäristötukikohteet Uusimaa
IUCN Not AssignedForestry environmental aid contracts (OECM)
0.24 km² overlap
Metsälain erityisen tärkeät elinympäristöt Uusimaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.20 km² overlap
TJUSTERBYN LUONNONSUOJELU
IUCN IVPrivate Nature Reserve
0.17 km² overlap
Venjärven metsä
IUCN IVPrivate Nature Reserve
0.17 km² overlap
Louis 100
IUCN IVPrivate Nature Reserve
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 240 distinct species · 36 653 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Koskenkylänjoki : 32 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 105 interactions GloBI sur 5 types (connectance 10.6%, filtre Serrano α=0.2). 13 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
625mm
Moisture idx (CMI)
0,13
Runoff
354mm/an
PET
544mm
AET
412mm
Mean slope
2,9°
Water table
101cm
Forest
83%
Crops
0%
Urban
0%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)