A device for rearing aquaculture animals at sea comprises: - a framework (3)； - at least one rearing enclosure (5) internally delimiting a volume (7) for receiving the aquaculture animals (9)； - a float device (10) connected to said at least one rearing enclosure (5)； - a connection (13) connecting said at least one rearing enclosure (5) to the framework (3), permitting a rotation of said at least one rearing enclosure (5) about a first, substantially horizontal axis of rotation (R1), and a rotation of the first axis of rotation (R1) with respect to the framework (3) about a second axis of rotation (R2) substantially parallel to the first axis of rotation (R1).
