Scientists said the discovery was hugely significant and could lead to future commercial production, BBC Scotland reported.
Forth oysters, once regarded as among the best in the United Kingdom, were wiped out through overfishing.
Stirling University scientists have discovered wild oysters in the firth that might be farmed commercially.
Elizabeth Ashton of the University of Stirling's Institute of Aquaculture discovered the oysters at a secret location.
Scottish oyster production is centred on Loch Ryan in the southwest, but once it was the Forth that produced a plentiful supply.
“The
