Farmed oysters are a better choice than wild

Unlike some fish-farming operations, which can allow nonnative species to escape into surrounding ecosystems and spread disease, oyster farms can actually improve the quality of oceans and bays. That’s because the oysters in offshore farms will feed on particulate matter and nutrients that might otherwise pollute waterways. So favor farmed oysters when shopping; you’ll also avoid depleting wild populations at risk from by those invasive crabs and snails.