Oyster Mariculture

I sure hope nobody is eating the oysters or any shells coming from the bay. It has been here that people have been warned not to eat any shells from within the bay. I would be curious as well to know where oysters with a horthern taste would be coming from. Not likely to be frozen as I have never seen this done with oysters but kept on ice is more likely. They may be flown in our east coast or west coast.