Recycling Aquaculture System
A simplest definition of a recirculating aquaculture system would be:
“Recirculating aquaculture encompasses systems used for the rearing of aquatic organisms where 90% or more of system water is recycled.”
Why Recirculating Aquaculture?
Low water Requirements * consume considerable less water than other types of culture systems * Suited to areas with limited water supplies. * Requires a minimum daily input of water, just enough to clean the waste from the filters and to replace water lost to evaporation.
Less Land Requirements * Fish can be safely stocked and grown at high densities. * The goal which designers are striving to attain is 1 pound of fish per gallon of water. * Can be located in areas where large amounts of level land are not available.
Control of Water Temperature * Produce species which could not normally be raised in a given geographic area. * maximize food conversion * provide optimum growth, * Growth can also occur throughout the year, maximizing production.
Control of Water Quality * To the benefit of the live fish stock to the final product and the environment. * maintaining dissolved oxygen at optimum levels * fish have better food conversion and are less stressed, * greater disease resistance, * less wasted feed * Faster stock growth. * Isolated from potential environmental contaminants such as off-flavor caused by algal blooms.
Protection From The Elements and Potential Predators * Protection from cold weather because tank can be equipped with heater * Having the fish indoors also permits harvest at times when heavy rain, snow or ice * Indoor RAS farms are designed to prevent stock escapement and mitigation of potential conflicts. ADVANTAGES * Increase in growing season * Decrease labor costs: automation * Increase stock security (predators, disease, theft, pollution) * Decrease dependency on natural resources * Increase
“Recirculating aquaculture encompasses systems used for the rearing of aquatic organisms where 90% or more of system water is recycled.”
Why Recirculating Aquaculture?
Low water Requirements * consume considerable less water than other types of culture systems * Suited to areas with limited water supplies. * Requires a minimum daily input of water, just enough to clean the waste from the filters and to replace water lost to evaporation.
Less Land Requirements * Fish can be safely stocked and grown at high densities. * The goal which designers are striving to attain is 1 pound of fish per gallon of water. * Can be located in areas where large amounts of level land are not available.
Control of Water Temperature * Produce species which could not normally be raised in a given geographic area. * maximize food conversion * provide optimum growth, * Growth can also occur throughout the year, maximizing production.
Control of Water Quality * To the benefit of the live fish stock to the final product and the environment. * maintaining dissolved oxygen at optimum levels * fish have better food conversion and are less stressed, * greater disease resistance, * less wasted feed * Faster stock growth. * Isolated from potential environmental contaminants such as off-flavor caused by algal blooms.
Protection From The Elements and Potential Predators * Protection from cold weather because tank can be equipped with heater * Having the fish indoors also permits harvest at times when heavy rain, snow or ice * Indoor RAS farms are designed to prevent stock escapement and mitigation of potential conflicts. ADVANTAGES * Increase in growing season * Decrease labor costs: automation * Increase stock security (predators, disease, theft, pollution) * Decrease dependency on natural resources * Increase