PORTLAND, Maine — The number of American fish stocks that can be described as "overfished" has hit an all-time low, the U.S. government announced Thursday.The National Oceanic and Atmospheric Administration made the statement as part of its annual Status of Stocks Report to Congress. Six populations of fish are being removed from its list of overfished stocks, including the popular commercially fished stocks of the Gulf of Mexico red snapper and Georges Bank winter [...]