Did a little research on this last night, and a machine called the "Sargasso Skimmer" was invented/created about three years ago down in Belize. I've seen sea grasses on the Riviera Maya in the past, but nothing like I've seen on St. Martin at certain times over the past five years. This machine skims the water and sucks up the floating sea grass patches, and a conveyer like tube unit draws it in for disposal. Check out this website for further details: www.desmi.com. or Google search 'Sargasso Skimmer'. I have no idea how much something like this would cost, but as we all know the beaches of St. Martin and the Caribbean for that matter are cherished resources that need to be protected. Maybe at some point down the road the French and/or Dutch governments will pursue such machinery for their eastern facing beaches?