A livewell is a water tank found on many fishing boats that is used to keep live bait and caught fish alive. It works by pumping natural water from the surrounding waterbody into the tank, as well as
A wooden livewell (container for live bait), towed by fishing boat. Exposition in Fisheries Museum in Hel (branch of National Maritime Museum in Gdańsk)
Water aeration is the process of increasing or maintaining the oxygen saturation of water in both natural and artificial environments. Aeration techniques are commonly used in pond, lake, and reservoi
Fountains aerate water by spraying it into the air.
Typical mechanical surface aerator at work. It is often difficult for this type of machine to aerate the entire water column.
A one-horsepower paddlewheel aerator. The splashing may increase the evaporation rate of the water and thus increase the salinity of the water body.
Fine bubble aeration is an efficient technique of aeration in terms of oxygen transfer due to the large collective surface area of its bubbles.