HydroLAKES lake · #108730
Opitz Lake
Surface area
3,14km²
Avg depth
5,6m
Volume
17,61km³
Shoreline
12,7km
Administrative coverage
2 dept-equivalent regions (GADM L2)
- DaySouth Dakota · United States2.67 km²84.8% of lake
- MarshallSouth Dakota · United States0.48 km²15.2% of lake
4 intersecting protected areas
Day County
IUCN VWaterfowl Production Area
0.70 km² overlap
Marshall County
IUCN VWaterfowl Production Area
0.60 km² overlap
Watershed Protection
0.15 km² overlap
Watershed Protection
0.00 km² overlap
Computed live · HydroLAKES × GADM × WDPA · cached after first hit.
Species present
69 distinct species · 165 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 Opitz Lake : 16 espèces reliées par 41 interactions GloBI sur 3 types (connectance 14.9%, 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
3,14km²
Avg depth
5,6m
Volume
17,610km³
Watershed
162km²
Shoreline
12,7km
Shore dev. idx
2,02
Residence time
1 532days
Elevation
542m
HydroLAKES v1.0 (Messager et al. 2016) · 1.4M lacs ≥ 0.1 km² mondialement.