European flat oysters (Ostrea edulis) were first farmed by the Romans in shallow ponds and similar techniques are still in use.

The Australian flat oyster, Ostrea angasi, has also been infected with Bonamia parasites.

And yet we sent half the platter back to the kitchen: from the flat oysters to the tired shrimp and overmarinated tough scallops, everything was dreary.

However, in 1973-1974, flat oysters in the Gulf of Morbihan were decimated or destroyed by parasites.

The crop and livestocks of the flat oyster are mainly in the Bay of Quiberon.

Marteilia refringens is a unicellular parasite affecting the digestive system of the flat oyster, Ostrea edulis.

Whatever they are called, they belong to the same species and are cousins to the French flat oyster.

After moderate recovery, the bacterium Bonamia ostreae infected the prevalent flat oysters, again decimating the industry in 1980.

P. mediterraneus infects the European flat oyster (Ostrea edulis).

Mr. Lomonaco said, "I love flat oysters but I can't get them reliably."