French oyster farmers from the Arcachon bay have set up a roadblock on the A660 motorway between Bordeaux and Arcachon at Biganos, to draw attention to their situation. Back at the end of December, they were barred from selling their oysters following mass intoxications around Christmas: "The weeks are going by. The time to pay our social contributions is up again and again. (...), it's getting complicated", laments Mathieu Garrig, an oyster farmer in La Teste-de-Buch, on the southwest Atlantic coast of France IMAGES AND SOUNDBITES