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Recirculating aquaculture systems are generally defined as production units that reuse the culture water more than once by putting it through a filtration process that removes fish waste contaminants (Figure 1).
Most recirculation systems move water through the filtration loop from 1-2 times each hour. Where water of the right temperature is plentiful, discharge from the systems are as much as 10-15% of the total volume each day. In areas where water must be conserved due to its availability or temperature, an average discharge is from 3-5% daily. |
