HydroBASINS lev08 watershed · #2080247970
Bassin de Visman
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 8 administrative regions : Degerfors, Gullspång, Karlskoga, Kristinehamn, Laxå +3
Sub-basin area
1 094,6km²
Upstream area
5 553,4km²
Discharge
60,53m³/s
Mean elev.
97m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 1 basins
- Bassin de Letälven170 km²
8 dept-equivalent regions (GADM L2)
- 406.6 km²36.9% of basin
- 391.9 km²35.6% of basin
- 144.3 km²13.1% of basin
- 124.7 km²11.3% of basin
- 27.5 km²2.5% of basin
- 2.3 km²0.2% of basin
- 2.0 km²0.2% of basin
- 1.3 km²0.1% of basin
30 intersecting protected areas
Kilsviken-Åråsviken
IUCN IaWetland of International Importance (Ramsar Site)
90.53 km² overlap
2002210 Nötön-Åråsviken
IUCN IaNature Reserve
25.55 km² overlap
Nötön-Åråsviken
IUCN IaNatura 2000 SPA
21.90 km² overlap
Nötön-Åråsviken
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.90 km² overlap
Nötön-Åråsviken
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.90 km² overlap
Nötön-Åråsviken
IUCN IaNatura 2000 SCI
21.90 km² overlap
Åråsviken-Vallholmen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
9.25 km² overlap
Åråsviken-Vallholmen
IUCN IIINatura 2000 SPA
9.25 km² overlap
2000339 Nötön-Åråsviken
IUCN IIINature Reserve
6.21 km² overlap
21 more protected areassorted by overlap area
Dyrön
IUCN IVNatura 2000 SPA
5.44 km² overlap
Dyrön
IUCN Not ReportedSpecial Protection Area (Birds Directive)
5.44 km² overlap
2004554 Dyrön
IUCN IVNature Reserve
5.44 km² overlap
2041557 Visnums Stormosse
IUCN IaNature Reserve
3.56 km² overlap
Åråsvikens norra skärgård
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.53 km² overlap
Åråsvikens norra skärgård
IUCN IaNatura 2000 SPA
3.53 km² overlap
2000566 Vallholmen
IUCN IaNature Reserve
3.05 km² overlap
Nature Reserve
2.90 km² overlap
Stormossen Mickelsrud
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.75 km² overlap
Stormossen Mickelsrud
IUCN IaNatura 2000 SCI
2.75 km² overlap
Visnums stormosse
IUCN IaNatura 2000 SCI
2.74 km² overlap
Visnums stormosse
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.74 km² overlap
2044349 Harsholmarna
IUCN IVNature Reserve
2.52 km² overlap
2002440 Värmlands Säby
IUCN IVNature Reserve
1.84 km² overlap
Värmlands Säby
IUCN IVNatura 2000 SPA
1.84 km² overlap
Värmlands Säby
IUCN IVNatura 2000 SCI
1.84 km² overlap
Värmlands Säby
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.84 km² overlap
Värmlands Säby
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.84 km² overlap
2004485 Gullspångsälven
IUCN IaNature Reserve
1.75 km² overlap
Gullspångsälven
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.75 km² overlap
Gullspångsälven
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.75 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 248 distinct species · 427 708 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Visman : 21 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 68 interactions GloBI sur 5 types (connectance 15.6%, 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°
5,8°C
Annual rain
633mm
Moisture idx (CMI)
0,05
Runoff
268mm/an
PET
603mm
AET
452mm
Mean slope
1,4°
Water table
179cm
Forest
61%
Crops
4%
Urban
0%
Protected
4%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)