When a pond experiences rapid turnover, it can cause lead to the death of aquatic life, and an unpleasant fish kill clean-up. Preventing turnover from happening takes a multifaceted approach that begins with construction, if the pond is human-made, and can be aided by aeration, controlling aquatic weeds, and reducing the nutrient load.
Proper Construction
One way to prevent pond turnover is by making sure it is constructed to discourage stratification. Ponds built with the proper ratio of surface water to deep water are less likely to turn over, and when they do, the severity will likely be less. Ponds with more surface area and shallower bottoms tend to turn over less because the lack of cool deep water deters stratification. In contrast, deep ponds with little surface area are more prone to turnover because there is more low oxygen cold water than warm surface water, which can lead to …