Jean-Marie Bertet’s twelve hectares of marshland dedicated to oyster farming can be found at the very tip of the Médoc, between the Atlantic Ocean and the Gironde Estuary. Along with a handful of fellow aquaculturists, Jean-Marie has been a driving force in reintroducing oyster farming in the marshlands of the northern Médoc.
When tidal ranges reach their highest points, the water in the basins is renewed thanks to a system of locks, and innovative rafts maintain the bags of oysters in mid-water so the oysters have access to the best nutrients as they mature.
What is Jean-Marie’s special technique? He cultivates his oysters in the same basins as his prawns: “The prawns stay at the bottom of the basins, stirring up nutrients so they float upwards to nourish the oysters closer to the surface.”