The present invention provides aquaculture assemblies for culturing oysters in deep waters comprising: at least one structure adapted for culturing an aquacultural species； at least one floatation means； and at least one anchoring means connecting said floatation means to the sea bed； wherein said structure is connected to or comprises said floatation means or said floatation means comprises said structure； and wherein said assembly is adapted for supporting said at least one structure either: a) substantially above the water surface at low-tide, and at least substantially below the water surface at high-tide, or b) substantially just below the water surface at low-tide, and fully below the water surface at high-tide. Methods for culturing aquacultural species using assemblies according to the invention are also provided.
