Greenpeace chases supermarket professionals, who visit supermarkets all over the Netherlands today, with six mobile billboards with the line ‘Supermarkets: stop selling unsustainable seafood’. Greenpeace uses the Dutch yearly ‘Supermarket day,' organised by retail magazine Distrifood, to confront the branches with the problems behind the unsustainable seafood on their shelves. In the supermarkets, Greenpeace volunteers cover unsustainable seafood products with ‘red guppies’ which represent fish in need and ask consumers to sign action cards. Greenpeace wants all supermarkets to stop selling unsustainable seafood and to start drafting a sustainable seafood policy. In Tiel, Greenpeace volunteers wait for the supermarket professionals with six mobile billboards. They will leave in six touring cars, each one of which will be followed by Greenpeace. Every touring car will visit three or four supermarkets, including: Albert Heijn XL in Rotterdam, Hoogvliet Den Haag, Albert Heijn in Oegstgeest, C1000 in Leusden, Spar Express in Utrecht, DekaMarkt in Hoorn and Jumbo in Rotterdam.