The Solent was once the largest oyster fishery in Europe. Its waters were reknowned for the mollusc - known as 'the poor man's food' because it was so abundant.
However, over-fishing brought the Solent oyster to the brink of extinction until catching them was banned in 2013.
Now a major environmental project - fronted by TV presenter Ben Fogle, aims to restore the oyster population there by putting millions back. Martin Dowse reports.