Good evening thanks for you interest in my nickname. Long story. When I was a young teen I raked the back bays in the sand (mud ) , for clams, oysters , scallops etc, to sell to fish markets . Did well. Local baymen called me the little mudshark! A few years later I reconditioned a old38ft Elco motor sail with a large keel under the hull. It drew 5 ft of water. I could be seen churning mud even in some channels , cruising with the old Mothers live at the Filmore east on. You can guess the boat name. Thanks