It is called the Eco-Mooring System and it is a “seagrass friendly” and most importantly ultra-durable mooring system“Just think, last year a customer called to thank us: his boat, moored with our system, was the only one that had not been washed ashore after a storm in Puerto Rico with 90-knot winds!” we were told by the American company.
The operation of Eco-Mooring is very simple and does not involve the installation of any dead body. A special “helical” anchor is screwed to the bottom, and a piece of chain is attached to it, which in turn is connected to a high-strength elastic shock-absorbing line. A final piece of chain finally ties it to the buoy.
The benefits are obvious: environmental damage is minimal, and marinas can increase their mooring lots because the anchorage does not drag and reduces turning space, freeing up useful space.
Depending on the composition of the seabed, there are different types of screw anchors. For info: