GREENHOUSES AND POND LINERS
Benefits of Recirculating Aquaculture Systems Energy and water requirements are limited to a minimum when
recirculating cultured water. Limited water use benefits production inside a fish farm. Recirculating Aquaculture Systems (RAS) are the best By: Kalia Williams *
A
quaponics provides a symbiotic relationship between plants and fish. One of the most efficient systems to use is a recirculating aquaculture system. This system works by using the water already in the system, purifying it, and reusing it continuously. The waste products produced, such as carbon dioxide, are removed or converted into non-toxic products and returned to the fish tanks. There are numerous benefits to using a recirculating aquaculture system. Recirculating Aquaculture Systems (RAS) are the best option for locations close to or in cities with access to electricity. In order to farm tropical fish in moderate or cold climates, it is necessary to use RAS technology. One significant advantage has to do with the spread of diseases. DECEMBER 2020 - JANUARY 2021
option for locations close to or in cities with access to electricity. The lessened water use minimizes the likelihood that fish get diseases since pathogens from the outside are lowered. Water used in traditional farming is usually taken from the sea, a river, or a lake, which increases the risk of disease. Energy and water requirements are limited to a minimum when recirculating cultured water. Limited water use benefits production inside a fish farm. Traditional fish farming is dependent on external conditions like temperature and oxygen levels. These factors are limited in recirculating systems. A recirculating system allows fish farmers to control all of the means of production. These parameters include daylight, water temperature, and oxygen levels. Monitoring these conditions allows for farmers to
come up with a precise production plan that predicts future outcomes with more accuracy. This helps with overall farm management and gives farmers a competitive edge. Another advantage of the RAS system is related to water and its quality control. Since dissolved oxygen levels are maintained at optimal levels, fish can have reduced stress, less food waste, and higher growth. Recirculating aquaculture systems have certain advantages compared to other production systems. A few additional benefits of recirculating aquaculture systems are: • Fully controlled environment for the fish • Low water use • Efficient energy use • Efficient land use • Optimal feeding strategy » 27
