HydroBASINS lev08 watershed · #2080137780
Bassin de Blackälven
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 : Jokkmokk
Sub-basin area
344km²
Upstream area
2 510,7km²
Discharge
51m³/s
Mean elev.
532m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tarraätno1536 km²
- Bassin de Tsielekjåhkå631 km²
1 dept-equivalent regions (GADM L2)
- 346.4 km²100.0% of basin
26 intersecting protected areas
Pärlälvens fjällurskog
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
94.03 km² overlap
Pärlälvens fjällurskog
IUCN IbNatura 2000 SCI
94.03 km² overlap
Nature Reserve
94.03 km² overlap
Nature Reserve
92.35 km² overlap
Kvikkjokk-Kabla fjällurskog
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
92.35 km² overlap
Kvikkjokk-Kabla fjällurskog
IUCN IbNatura 2000 SCI
92.35 km² overlap
1073670847
IUCN Not ApplicableVoluntary set-aside areas
0.30 km² overlap
1073673133
IUCN Not ApplicableVoluntary set-aside areas
0.21 km² overlap
1073670800
IUCN Not ApplicableVoluntary set-aside areas
0.20 km² overlap
17 more protected areassorted by overlap area
1073670948
IUCN Not ApplicableVoluntary set-aside areas
0.14 km² overlap
1073666234
IUCN Not ApplicableVoluntary set-aside areas
0.13 km² overlap
1073673128
IUCN Not ApplicableVoluntary set-aside areas
0.11 km² overlap
1073670802
IUCN Not ApplicableVoluntary set-aside areas
0.11 km² overlap
1073670950
IUCN Not ApplicableVoluntary set-aside areas
0.10 km² overlap
1073666220
IUCN Not ApplicableVoluntary set-aside areas
0.09 km² overlap
1073670791
IUCN Not ApplicableVoluntary set-aside areas
0.08 km² overlap
1073673155
IUCN Not ApplicableVoluntary set-aside areas
0.05 km² overlap
1073686285
IUCN Not ApplicableVoluntary set-aside areas
0.05 km² overlap
1073673146
IUCN Not ApplicableVoluntary set-aside areas
0.04 km² overlap
1073666233
IUCN Not ApplicableVoluntary set-aside areas
0.03 km² overlap
1073666235
IUCN Not ApplicableVoluntary set-aside areas
0.03 km² overlap
1073691449
IUCN Not ApplicableVoluntary set-aside areas
0.03 km² overlap
1073697557
IUCN Not ApplicableVoluntary set-aside areas
0.02 km² overlap
1073686238
IUCN Not ApplicableVoluntary set-aside areas
0.02 km² overlap
1073670776
IUCN Not ApplicableVoluntary set-aside areas
0.02 km² overlap
1073670879
IUCN Not ApplicableVoluntary set-aside areas
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 003 distinct species · 5 136 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 Blackälven : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 63 interactions GloBI sur 5 types (connectance 8.5%, 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°
-1,0°C
Annual rain
551mm
Moisture idx (CMI)
0,25
Runoff
529mm/an
PET
411mm
AET
345mm
Mean slope
6,0°
Water table
173cm
Forest
66%
Crops
0%
Urban
0%
Protected
54%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)