Dead organic biomass forms dark sludge at the bottom of the water body - this creates an increasingly hostile environment. The gentle aeration attracts aerobic microbacteria through oxygen - these metabolise the organic matter and bind pollutants to the sediment.

Organic matter makes up the largest volume of sediment - biological degradation prevents the formation of gases that are harmful to the climate. It also prevents sedimentation, as no swamp-like zones can form.

Especially when beavers are active, it is difficult to maintain watercourse areas, as they contribute significantly to plant inputs. Likewise, breeding birds and protected plants should continue to be preserved - the gentle oxygen therapy is an ideal measure for this.