HydroBASINS lev08 watershed · #2080154260
Bassin de Svenningelva
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 : Bindal, Brønnøy, Grane, Hattfjelldal, Vefsn
Sub-basin area
1 006,3km²
Upstream area
1 006,3km²
Discharge
46,45m³/s
Mean elev.
607m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 972.4 km²96.0% of basin
- 17.3 km²1.7% of basin
- 11.9 km²1.2% of basin
- 7.4 km²0.7% of basin
- 4.0 km²0.4% of basin
15 intersecting protected areas
Lomsdal-Visten og Strauman
IUCN Not ReportedEmerald Network
181.39 km² overlap
Lomsdal-Visten
IUCN IINational Park
181.29 km² overlap
Børgefjell/Byrkije
IUCN IINational Park
149.46 km² overlap
Børgefjell
IUCN Not ReportedEmerald Network
149.46 km² overlap
Holmvassdalen
IUCN IaNature Reserve
60.03 km² overlap
Holmvassdalen
IUCN Not ReportedEmerald Network
59.98 km² overlap
Simskarmyra
IUCN IaNature Reserve
5.07 km² overlap
Simskarmyra
IUCN Not ReportedEmerald Network
5.07 km² overlap
Bjortjønnlimyrene
IUCN IaNature Reserve
4.36 km² overlap
6 more protected areassorted by overlap area
Bjortjønnlimyrene
IUCN Not ReportedEmerald Network
4.36 km² overlap
Stormyra
IUCN Not ReportedEmerald Network
1.12 km² overlap
Stormyra
IUCN IaNature Reserve
1.11 km² overlap
Stavasselva
IUCN IaNature Reserve
0.52 km² overlap
Ørnodden
IUCN IaNature Reserve
0.27 km² overlap
Svenningvika
IUCN IaNature Reserve
0.26 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 330 distinct species · 20 470 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 Svenningelva : 35 espèces dont 5 patrimoniales (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 5 types (connectance 8.1%, 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°
1,8°C
Annual rain
1 583mm
Moisture idx (CMI)
0,75
Runoff
1 432mm/an
PET
388mm
AET
387mm
Mean slope
12,6°
Water table
357cm
Forest
36%
Crops
0%
Urban
0%
Protected
40%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)