The device for rearing aquaculture animais at sea comprises at least one stack (30) of rearing enclosures (32) superimposed on top of each other in a longitudinal direction, and blades (34) linked to the rearing enclosures (32) and arranged such that the rearing enclosures (32) are rotated around a longitudinal axis by the sea current. This rotation combined with the inclination of the longitudinal axis produced by the current causes the animais to roll against each other in the enclosures during periods of strong current.
