Abstract: A submersible farm is described including a self-supporting frame which can be submerged and maintained at a selected depth. The submersible farm further includes a first radial structure having lattice-forming beams which are placed edgeways in order to support a second structure which bears culture ropes and is disposed horizontally below the first structure. The first structure includes a float which extends partially along the periphery thereof and which includes at least a peripheral inlet and outlet for the culture ropes leading to a berth. The berth is fixed to the first radial structure. The frame is supported by a counterweighted flotation column which is disposed at the center of both the first and second structures and which includes a float which extends downward into a counterweighted tube having a stabilizing system suspended therefrom.

Abstract: The invention relates to an improved submersible mollusc farm consisting of a self-supporting frame which is formed with an “H” plan floating structure comprising beams with support arms for the culture ropes. According to the invention, the structure moves vertically under the effect of tides or the weight of the culture product and is guided by means of surface floats which are equipped with a guide tube comprising slide stop elements between which the structure can slide.

Abstract: An improved submersible mollusc farm is disclosed. A line of cables bearing the culture ropes and the cylindrical buoys which maintain the line horizontal is suspended from end floats. The end floats include a filling/emptying system using water by way of ballast, in order to raise or submerge the line by inflating the end floats with air. Submerged tension buoys are connected to the end floats by tension cables and pulleys which are fixed to the dead weights provided at either end of the line. The vertical thrust of the tension buoys causes the pulley to stretch the cable and tauten the line.