HydroBASINS lev08 watershed · #2080218050
Bassin de Иййоки
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 5 administrative regions across 2 countries : Lakhdenpokhskiy rayon, North Karelia, Pitkyarantskiy, South Karelia, Southern Savonia
Sub-basin area
1 612,6km²
Upstream area
1 612,6km²
Discharge
11,87m³/s
Mean elev.
65m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 844.0 km²52.0% of basin
- 624.6 km²38.5% of basin
- 104.4 km²6.4% of basin
- 35.0 km²2.2% of basin
- 14.2 km²0.9% of basin
30 intersecting protected areas
Ladozhskie shhery
IUCN IINational Park
211.46 km² overlap
Iso-Ijyarvi
IUCN IVState Natural Zakaznik
63.83 km² overlap
Siikalahti, Sammallampi, Rautalahti
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.82 km² overlap
Siikalahti Bay Area
IUCN Not ReportedWetland of International Importance (Ramsar Site)
6.82 km² overlap
Siikalahti
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.65 km² overlap
State Nature Reserve
4.47 km² overlap
Pieni- ja Suuri-Rautjärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.49 km² overlap
Metsälain erityisen tärkeät elinympäristöt Etelä-Karjala
IUCN Not AssignedForest habitats of special importance according to the Forest Act (OECM)
1.90 km² overlap
Metsätalouden ympäristötukikohteet Etelä-Karjala
IUCN Not AssignedForestry environmental aid contracts (OECM)
1.19 km² overlap
21 more protected areassorted by overlap area
Kivijärvi
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.19 km² overlap
Private Nature Reserve
0.78 km² overlap
Soinmäen luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.70 km² overlap
Keskimaan luonnonsuojelualue
IUCN IVState Nature Reserve
0.32 km² overlap
Private Nature Reserve
0.25 km² overlap
Riikolan luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.24 km² overlap
Ukshongan luonnonsuojelualue
IUCN IVPrivate Nature Reserve
0.21 km² overlap
Kanavalampi
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.21 km² overlap
State Nature Reserve
0.20 km² overlap
State Nature Reserve
0.19 km² overlap
State Nature Reserve
0.19 km² overlap
Soikkelin luonnonsuojelualue
IUCN Not AssignedTemporary Protection Order
0.17 km² overlap
Heralampi
IUCN IVPrivate Nature Reserve
0.17 km² overlap
Kultakallio
IUCN IVPrivate Nature Reserve
0.16 km² overlap
Antpoutanen
IUCN IVPrivate Nature Reserve
0.15 km² overlap
Korpisaaren metsä
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
State Nature Reserve
0.15 km² overlap
Ripala
IUCN IVPrivate Nature Reserve
0.15 km² overlap
Private Nature Reserve
0.14 km² overlap
Pekan ja Urpon puisto
IUCN IVPrivate Nature Reserve
0.14 km² overlap
Pitkäsaaren luonnonsuojelualue
IUCN Not AssignedTemporary Protection Order
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 237 distinct species · 157 313 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 Иййоки : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 82 interactions GloBI sur 4 types (connectance 13.8%, filtre Serrano α=0.2). 8 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°
3,1°C
Annual rain
640mm
Moisture idx (CMI)
0,17
Runoff
240mm/an
PET
529mm
AET
408mm
Mean slope
3,4°
Water table
150cm
Forest
71%
Crops
15%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)