1% of historic levels $9.5 million 1% of historic levels up to 20 years in captivity 1% of historic levels http://chesapeakebay.noaa.gov/fish-facts/oysters since 2013 especially in Maryland “Oysters” no site do laboratório de Chesapeake Bay da NOAA http://chesapeakebay.noaa.gov/fish-facts/oysters NOAA imposed restrictions National Oceanic and Atmospheric Association https://chesapeakebay.noaa.gov/fish-facts/oysters https://chesapeakebay.noaa.gov/fish-facts/oysters 1% of historic levels 1% of historic levels damaging to the reef structure http://chesapeakebay.noaa.gov/fish-facts/oysters chesapeakebay.noaa.gov