This rearing device (1) comprises: - a framework (3) intended to be placed at the sea bed (15); - at least one rearing enclosure (5) internally delimiting a volume (7) for receiving the aquaculture animals (9) ; - 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) with respect to the framework (3) about at least one substantially horizontal axis of rotation; - a float device (10) connected to said at least one rearing enclosure (5) via a flexible connection (95) of a length chosen such that, when the flexible connection (95) is vertically tensioned, the float device (10) is located in the intertidal zone.