Granchi blu. Il biologo Andrea Tomei ci spiega come pescarli e anche come cucinarli

More and more fishermen are flocking to the Revedoli Canal, between Eraclea and Cortellazzo, to fish for blue crabs. Biologist Andrea Tomei explains how they arrived here, how they spread, and how they can—and, in his opinion, should—be caught to prevent their dangerous spread. Video: Cagnassi