compared within six replicated 9.5 m 3 water recirculating aquaculture systems (WRAS)
operated with and without ozone at various water exchange rates. Three separate studies
were conducted:(1) low water exchange (0.26% of the total recycle flow) with and without
ozone;(2) low water exchange with ozone versus high water exchange (2.6% of the total
recycle flow) without ozone; and (3) near-zero water exchange (only backwash …