HydroBASINS lev08 watershed · #2080119250
Bassin de Tsahkaljoki
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 across 3 countries : Kiruna, Lapland, Storfjord
Sub-basin area
485,1km²
Upstream area
485,1km²
Discharge
6,57m³/s
Mean elev.
689m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 184.9 km²37.9% of basin
- 175.6 km²35.9% of basin
- 128.0 km²26.2% of basin
15 intersecting protected areas
Pältsa
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
78.40 km² overlap
Pältsa
IUCN Not AssignedNatura 2000 SCI
78.40 km² overlap
MALLA
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
30.89 km² overlap
Mallan luonnonpuisto
IUCN IaStrict Nature Reserve
30.77 km² overlap
Tornionjoen-Muonionjoen vesistöalue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
24.75 km² overlap
Torne och Kalix älvsystem
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.71 km² overlap
Torne och Kalix älvsystem
IUCN Not AssignedNatura 2000 SCI
12.71 km² overlap
SAANAN LUONNONSUOJELUALUE
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.39 km² overlap
Saanan luonnonsuojelualue
IUCN IaState Nature Reserve
1.51 km² overlap
6 more protected areassorted by overlap area
Saanan lehtojensuojelualue
IUCN IVHerb Rich Forest Reserve
0.80 km² overlap
Saana lajialuerajaus, Enontekiö
IUCN Not AssignedSite of Species Under Strict Protection
0.23 km² overlap
Salmivaara lajialuerajaus, Enontekiö
IUCN Not AssignedSite of Species Under Strict Protection
0.19 km² overlap
Käsivarren erämaa
IUCN IbWilderness Area
0.02 km² overlap
Salmivaara lajialuerajaus 2, Enontekiö
IUCN Not AssignedSite of Species Under Strict Protection
0.02 km² overlap
Salmivaara lajialuerajaus 1, Enontekiö
IUCN Not AssignedSite of Species Under Strict Protection
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 668 distinct species · 164 805 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 44 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 Tsahkaljoki : 27 espèces reliées par 96 interactions GloBI sur 7 types (connectance 8.9%, filtre Serrano α=0.2). 20 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
530mm
Moisture idx (CMI)
0,36
Runoff
433mm/an
PET
335mm
AET
292mm
Mean slope
8,5°
Water table
259cm
Forest
17%
Crops
0%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)