Biodiversität in Karpfenteichen fördern: vier erfolgreiche Beispiele im fränkischen Aischgrund

Increasing biodiversity in carp ponds: four successful examples in the Franconian Aischgrund // Reviving lost species and promoting biological diversity – these were the goals for four carp ponds in the Franconian Aischgrund. In all four cases the measures were very successful. The restoration of an old pond that had been overgrown for about 50 years revealed an undreamt spectrum of rare spawning weed species and stoneworts. Among other things also the spawning herb Potamogeton x sparganifolius, which has been lost in Bavaria for over one hundred years. This is an important indication that diasporas of stoneworts and spawning herb species are germinable under favourable conditions (soil wetness, undisturbed sedimentation vegetation) even after 50 years.