HydroBASINS lev08 watershed · #2080028670
Bassin de Taasianjoki
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 : Eastern Uusimaa, Kymenlaakso, Päijänne Tavastia
Sub-basin area
1 735,4km²
Upstream area
1 735,4km²
Discharge
2,4m³/s
Mean elev.
29m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- 845.4 km²48.4% of basin
- 796.7 km²45.6% of basin
- Päijänne Tavastia52.5 km²3.0% of basin
30 intersecting protected areas
Kymijoki
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
23.87 km² overlap
Pernajanlahtien ja Pernajan saariston merensuojelualue /Pernajabay and Pernaja Archipelago marine protection areas
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
15.49 km² overlap
Pernajanlahtien ja Pernajan saariston merensuojelualue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
15.39 km² overlap
Pernajanlahtien ja Pernajan saariston merensuojelualue
IUCN Not ReportedSpecial Protection Area (Birds Directive)
15.39 km² overlap
Valkmusan kansallispuisto
IUCN IINational Park
10.40 km² overlap
Valkmusa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.15 km² overlap
Valkmusa National Park
IUCN Not ReportedWetland of International Importance (Ramsar Site)
7.81 km² overlap
Teutjärven ja Suvijärven lintuvedet
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.68 km² overlap
Ahvenkoskenlahti
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.33 km² overlap
21 more protected areassorted by overlap area
National Park
2.08 km² overlap
Itäisen Suomenlahden saaristo ja vedet/ Eastern Gulf of Finland Archipelago and waters
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
1.74 km² overlap
Itäisen Suomenlahden saaristo ja vedet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.74 km² overlap
Itäisen Suomenlahden saaristo ja vedet
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.74 km² overlap
Private Nature Reserve
1.56 km² overlap
Santaniemenselkä-Tyyslahti
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.54 km² overlap
Koukkusaari
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.39 km² overlap
Kokkovuori
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.21 km² overlap
Kullafjärdenin lintuvesi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.12 km² overlap
Kullafjärdenin lintuvesi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.12 km² overlap
KULLAFJÄRDEN
IUCN IVPrivate Nature Reserve
1.09 km² overlap
Private Nature Reserve
1.08 km² overlap
Saarelan suojelualue
IUCN IVPrivate Nature Reserve
1.06 km² overlap
Private Nature Reserve
0.98 km² overlap
Heinlahti
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.98 km² overlap
Private Nature Reserve
0.95 km² overlap
Vahterpään fladat
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.94 km² overlap
Metsälain erityisen tärkeät elinympäristöt Uusimaa
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.89 km² overlap
State Nature Reserve
0.80 km² overlap
Metsälain erityisen tärkeät elinympäristöt Kymenlaakso
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
0.72 km² overlap
Private Nature Reserve
0.71 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 327 distinct species · 369 606 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Taasianjoki : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 97 interactions GloBI sur 6 types (connectance 15.4%, filtre Serrano α=0.2). 9 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
615mm
Moisture idx (CMI)
0,11
Runoff
332mm/an
PET
550mm
AET
412mm
Mean slope
2,4°
Water table
89cm
Forest
72%
Crops
13%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)