From Wiki
In marine paint
Medetomidine can be used as an antifouling substance in marine paint. It is mainly effective against barnacles, but has also shown effect on other hard fouling like tube worms. When the barnacle cyprid larva encounters a surface containing medetomidine the molecule interacts with the octopamine receptor in the larva. This makes the larva legs start kicking and it cannot settle to the painted surface. When the larva swims away from the surface, the effect disappears (reversible effect). The larva regain its function and can settle somewhere else.



www.sciencedaily.com/releases/2010/05/100509202641.htm


http://www.mistra.org/download/18.28e913871380e4c8e62381/1378682153767/Marine+Paint+final+report+2003-2011.pdf

SandS said..

nice find HG !!!! where can we buy a 44 of Medetomidine to mix in with some anti !!

I like the animated description of how it works !!! i could watch that for hours !!!

The way I am starting to see it Sands ,the owner may not be allowed to anti foul his/or her's own boat eventually give it ten years.
Antifoul removal and replacement with Medetomidine style repellent might become a franchise business and not sold to the public.
If it ends up like that old boats will just be crushed as the price on maintenance increases

Higher latitude countries in the norther hemisphere will ban what we use today very soon and it will flow on around the world

Interesting read....thanku hg

andy59 said..
Interesting I wonder if we can buy it anywhere

I should imagine it will be for commercial shipping only where the legal limits for chemical dispersion don't apply.

Bruski068 said...
HGO2 SAID Higher latitude countries in the northern hemisphere will ban what we use today very soon and it will flow on around the world.

I say
If we could bring the Philipines and Thailand to the Southern Hemisphere there'd be no reason for the Northern hemisphere to exist at all.

Reminds me of the song
"Great Southern Land"