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Chapter: Aquaculture Engineering - Ponds

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Aquaculture Pond layout

A farm normally comprises several ponds. The arrangement of the ponds is important for optimal utilization of the area, and to ensure efficient water transport, fish handling and (eventually) feed handling.

Pond layout

A farm normally comprises several ponds. The arrangement of the ponds is important for optimal utilization of the area, and to ensure efficient water transport, fish handling and (eventually) feed handling. If watershed ponds are used, they must be adapted to the ground conditions and the layout is normally predetermined. If using levee or embankment ponds the layout is more important. Rectangular ponds are usually best regarding utilization of the area. Four main layouts may be used (partly from ref. 19) (Fig. 14.8):




Series ponds are constructed so that the waterflows from one pond into the next. The advantage is that gravity can be used to ensure the water flows though the entire farm. The main disadvantage is that the effluent water from one pond is the inlet water to the next pond and water quality decreases from pond to pond. Eventually disease pathogens will also follow the water and spread disease from pond to pond as isolation of a single pond is impossible. The water may be aerated when flowing from one pond to the next.

Parallel ponds are set out beside each other, with a common water supply canal and a common effluent water canal. This is the most usual layout for a pond farm. The advantages are that the water quality is the same in each pond and it is also possible to increase and reduce the water flow to the separate ponds.

Radial ponds are in a circle with the smallest close to the centre and the larger ponds outside this. In this way the size of the ponds increases with the radius of the circle. The great advantage with this system is that fish handling is very easy. If the fry are in the inner ponds they can gradually be moved to larger ponds when they grow and need a greater volume of water. The empty ponds can then be restocked with new fish.

Inset ponds are small ponds placed inside a larger pond. This method can provide a nursery pond inside a grow-out pond.


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