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: The invention relates to an improved submersible mollusc farm. According to the invention, a line of cables bearing the culture ropes and the cylindrical buoys which maintain said line horizontal is suspended from end floats. The end floats comprise a filling/emptying system using water by way of ballast, in order to raise or submerge the line by inflating said floats with air. Submerged tension buoys are connected to the aforementioned floats by means of tension cables and pulleys which are fixed to the dead weights provided at either end of the line. The vertical thrust of the above-mentioned tension buoys causes the pulley to stretch the cable and tauten the line.

Abstract: The improved shellfish farm is formed by a modular structure consisting of at least one first platform comprising a floating base which is equipped with ballast means and a second platform from which culture ropes are hung. The aforementioned platforms are stacked and separated at different levels by means of hollow columns, the height of said columns being essentially equal to the length of the culture ropes.