HydroLAKES lake · #8567
Portage Lake
Surface area
47,41km²
Avg depth
13,5m
Volume
639,81km³
Shoreline
91,3km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- Lake SuperiorMichigan · United States32.51 km²68.4% of lake
- HoughtonMichigan · United States15.03 km²31.6% of lake
2 intersecting protected areas
Baraga State Forest Area
IUCN VState Forest
0.16 km² overlap
Sturgeon River Sloughs
IUCN VState Wildlife Area
0.07 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
800 distinct species · 25 040 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 Portage Lake : 28 espèces reliées par 64 interactions GloBI sur 4 types (connectance 10.2%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Lake statistics (HydroLAKES)
Surface
47,41km²
Avg depth
13,5m
Volume
639,810km³
Watershed
2 379km²
Shoreline
91,3km
Shore dev. idx
3,74
Residence time
132days
Elevation
179m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.