HydroLAKES lake · #13003

Mjörn

Natural lakeSwedenEurope 58 m

Surface area

54,34km²

Avg depth

15,2m

Volume

825,78km³

Shoreline

102,6km

Administrative coverage

Parent watershed

hybas-20800332901642 km² · upstream 1642 km²

2 dept-equivalent regions (GADM L2)

Alingsås
Västra Götaland · Sweden
30.32 km²
55.5% of lake
Lerum
Västra Götaland · Sweden
24.30 km²
44.5% of lake

17 intersecting protected areas

2000560 Risön
IUCN Ia
Nature Reserve
1.81 km² overlap
2000553 Nolhagaviken
IUCN IV
Nature Reserve
0.39 km² overlap
Nolhagaviken
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.39 km² overlap
Nolhagaviken
IUCN IV
Natura 2000 SCI
0.39 km² overlap
Östad
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
0.09 km² overlap
Östad
IUCN Not Assigned
Natura 2000 SCI
0.09 km² overlap
n/a.
IUCN IV
Nature conservation agreement, County Administrative Board
0.08 km² overlap
2025672 Halö och Lilla Halö
IUCN Not Assigned
Wildlife and Plant Sanctuary
0.03 km² overlap
2025670 Småöarna väster om Norseskären i Mjörn
IUCN Not Assigned
Wildlife and Plant Sanctuary
0.03 km² overlap

8 more protected areassorted by overlap area

2025794 Gullbringen
IUCN Not Assigned
Wildlife and Plant Sanctuary
0.01 km² overlap
SK 615-2007
IUCN Ia
Habitat Protection Area
0.01 km² overlap
2025700 Skräddareklinten
IUCN Not Assigned
Wildlife and Plant Sanctuary
0.00 km² overlap
2025761 Rögrund
IUCN Not Assigned
Wildlife and Plant Sanctuary
0.00 km² overlap
2025587 Prästaskär
IUCN Not Assigned
Wildlife and Plant Sanctuary
0.00 km² overlap
2025810 Lilla Stenskär
IUCN Not Assigned
Wildlife and Plant Sanctuary
0.00 km² overlap
2025750 Lilla skäret söder om Stora Stenskär
IUCN Not Assigned
Wildlife and Plant Sanctuary
0.00 km² overlap
2021653 Nolhaga berg
IUCN Ia
Nature Reserve
0.00 km² overlap

Computed live · HydroLAKES × GADM × WDPA · cached after first hit.

Species present

2 434 distinct species · 207 945 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 28 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).

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Mjörn : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 4 types (connectance 15.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.159

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Lake statistics (HydroLAKES)

Surface

54,34km²

Avg depth

15,2m

Volume

825,780km³

Watershed

1 073km²

Shoreline

102,6km

Shore dev. idx

3,93

Residence time

598days

Elevation

58m

HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.