celandine
Active member
Many of the yachts that I lift out for winter storage have mysterious marks below the water line. These consist of numerous parallel lines, always 3 to 5 ins long that look as though someone has repeatedly wiped the hull with two fingers pressed together. They appear all over the hull in a random pattern, and range in number from a few to hundreds. There is no damage, the marks being made only by the removal of slime and weed. All the boats which show this have come from swinging moorings on the Medway Estuary.
Has anyone else seen these, and does anyone know what causes them? My guess is that they are made by grey mullet feeding on the algae.
Mick.
Has anyone else seen these, and does anyone know what causes them? My guess is that they are made by grey mullet feeding on the algae.
Mick.