Nine artificial sea-mounts have already been constructed in rather shallow waters (i.e. less than 100 m). There is a strong demand for artificial sea-mounts in deeper waters to create a larger fertilized area for fishing. It is essential to construct an artificial sea-mount with the least number of blocks with the least scattering of blocks because the blocks tend to scatter during the drop, particularly with an increase in depth. The more the water depth increases, the more the blocks scatter on the ocean floor. It has been experimentally demonstrated through water tank experiments that scattering can be minimized by connecting four blocks loosely with rope or wire.
