Patent ID: 7287488

Claim:
A floatable raceway for cultivating aquatic organisms comprising: a partially submersible tank for containing aquatic organisms such as fish having an elongate base, opposing sidewalls extending from the base, a gate assembly having two or more removable gates at a water discharge end of the tank, and an end wall assembly at a water intake end of the tank having a ramp extending downwardly to the base and towards the gate assembly; one or more floats for keeping a top of the tank above water level and for keeping the base substantially parallel with the water's surface; an airlift assembly connectable to an air supply for introducing oxygenated water to the tank and across a width of the tank at the water intake end; and a baffle extending between the sidewalls and located adjacent the water intake end for directing water flowing through the tank along the base, wherein one or more of said gates is a screen gate allowing the movement of aquatic organism wastes therethrough and one or more of said gates is a stop gate for substantially preventing the discharge of water from the tank.