Ruisseau· 3 segments
Mern Å
Crosses 1 administrative regions : Vordingborg
Total length
17km
Max discharge
0,8m³/s
Max Strahler
2
Segments matched
3
River geography1 admin regions · 0 communes
1 administrative regions crossed (GADM L2)
- VordingborgSjælland · Denmark13.2 kmin this dpt
7 intersecting protected areas
The sea and coast between Præstø Fjord and Grønsund
IUCN Not ReportedBaltic Sea Protected Area (HELCOM)
Havet og kysten mellem Præstø Fjord og Grønsund
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Præsto Fjord, Jungshoved Nor, Ulvshale and Nyord
IUCN Not ReportedWetland of International Importance (Ramsar Site)
Præstø Fjord, Ulvshale, Nyord og Jungshoved Nor
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Vordingborg Kommune private
IUCN Not Assigned§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
Vordingborg Kommune public
IUCN IV§3 protected habitats (all lakes, bogs, streams, heaths and meadows etc.)
Lekkende Dyrehave
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 384 distinct species · 7 531 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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 Mern Å : 34 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 126 interactions GloBI sur 6 types (connectance 11.2%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
17km
Max discharge
0,8m³/s
Max Strahler
2
Segments matched
3
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.