Diffused Fishery Aeration – Air Diffusers

Why is aerating your fishery so important?

Thermal stratification occurs during the summer, this is when layering within the water occurs. The surface layer will contain warmer, oxygen-rich water, whilst the bottom layer contains cooler oxygen-depleted water. The Thermocline separates these two layers. It is the difference in water density that stops the top and bottom layers from mixing.

Heathland Group can supply diffused fishery aerators that pumps air in the form of millions of tiny bubbles through the diffuser membranes. These bubbles will then travel to the surface through the layers of thermal stratification, entraining water to the surface, where they become naturally oxygenated.

By aerating and circulating water from the fishery bed, any toxic gases that had been previously trapped under the thermocline layer are released providing a balanced habitat. This creates aerobic conditions near the fishery bed, where microbial processes can naturally break down nutrients that would otherwise be used in the production of noxious aquatic weeds and algae.

Key features of a diffused fishery aeration system:

• Breaks up thermal stratification throughout the water column. This allows the entire water column to be oxygenated and eliminating highs and lows in both temperature and oxygen levels.
• Increases the breakdown of aquatic waste by providing the habitat beneficial for aerobic bacteria to flourish.
• When operated continuously in freezing climates, these pumps will keep open areas in the ice. This allows toxic gases to escape and increases the oxygen level in the water.
• Winter operation will keep areas of frozen fisheries open. This allows birds and other wildlife to gain the much-needed water they need during freezing conditions.
• Prevents fish kills in freezing conditions.

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