Natural eutrophic lakes with Magnopotamion or Hydrocharition - type vegetation
Natural eutrophic lakes and ponds including their shoreline vegetation with floating and submerged aquatic vegetation; e.g. with duckweed communities (Lemnetea), pondweed communities (Potamogetonetea pectinati), Water-soldier (Stratiotes aloides) or Bladderworts (Utricularia ssp.).
The European Commission has clarified that - depending on the definition of the term 'natural' - this habitat type may be primary or secondary (e.g. ponds) if its occurrences are subject to (semi-)natural development.
Notes on habitat mapping
The criterion for the delimitation of this habitat type is the presence of vegetation of the syntaxa given above in eutrophic standing waters. The entire waterbody in which vegetation of the syntaxa given above has been recorded is to be included. Apart from the open water the amphibious zone with its reedbeds, tall herb fringe communities, and sedge swamps is to be included. Occurrences of the vegetation types in slowly flowing watercourses are excluded.
Non-environmental standing waters and hypertrophic waters are not to be included. Ox-bows as well as partial ox-bows with no throughflow are to be included (even if artificially created).
Proposal for amendment: Inclusion into the Directive of certain reed and large sedge swamps as most common fringe vegetation.
Proposal for new name: 'Natural eutrophic lakes with their swamp and aquatic vegetation'.