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  2. Recirculating aquaculture system - Wikipedia

    en.wikipedia.org/wiki/Recirculating_aquaculture...

    Recirculating aquaculture systems (RAS) are used in home aquaria and for fish production where water exchange is limited and the use of biofiltration is required to reduce ammonia toxicity. [1] Other types of filtration and environmental control are often also necessary to maintain clean water and provide a suitable habitat for fish. [ 2 ]

  3. Greenfish recirculation technology - Wikipedia

    en.wikipedia.org/wiki/Greenfish_recirculation...

    Developed in Sweden, the Greenfish recirculation technology is a water purification technology for sustainable aquaculture production in closed indoor freshwater systems. It was developed at Gothenburg University by Björn Lindén in collaboration with Chalmers associate professor Torsten Wik, under the supervision of professor emeritus Gustaf Olsson at Lund University of Technology.

  4. Aquaculture - Wikipedia

    en.wikipedia.org/wiki/Aquaculture

    Recirculating aquaculture systems (RAS) recycle water by circulating it through filters to remove fish waste and food and then recirculating it back into the tanks. This saves water and the waste gathered can be used in compost or, in some cases, could even be treated and used on land.

  5. Aquaponics - Wikipedia

    en.wikipedia.org/wiki/Aquaponics

    Aquatic effluents, resulting from uneaten feed or raising animals like fish, accumulate in water due to the closed-system recirculation of most aquaculture systems. The effluent-rich water becomes toxic to the aquatic animal in high concentrations but this contains nutrients essential for plant growth. [33]

  6. Airlift pump - Wikipedia

    en.wikipedia.org/wiki/Airlift_pump

    Airlift pumps are widely used in aquaculture to pump, circulate and aerate water in closed, recirculating systems and ponds. Other applications include dredging , underwater archaeology, salvage operations and collection of scientific specimens .

  7. Aquacultural engineering - Wikipedia

    en.wikipedia.org/wiki/Aquacultural_engineering

    Comprehensive instrumentation and sensor controls are required to monitor this equipment and the underlying water conditions such as temperature, dissolved oxygen, and pH. Development of recirculating aquaculture systems is still underway in 2017, and engineering advances are needed to make the systems economically viable for culturing most ...

  8. Raceway (aquaculture) - Wikipedia

    en.wikipedia.org/wiki/Raceway_(aquaculture)

    Raceway systems are among the earliest methods used for inland aquaculture. A raceway usually consists of rectangular basins or canals constructed of concrete and equipped with an inlet and outlet. A continuous water flow-through is maintained to provide the required level of water quality, which allows animals to be cultured at higher ...

  9. Fish farming - Wikipedia

    en.wikipedia.org/wiki/Fish_farming

    Intensive aquaculture requires tight monitoring and a high level of expertise of the fish farmer. Controlling roes manually. Very-high-intensity recycle aquaculture systems (RAS, also Recirculating Aquaculture Systems), where all the production parameters are controlled, are being used for high-value species.