A decade ago, Tunisian fisherman, Ahmed Chelli’s nets bulged with fish and octopus that he sold at the local market in the Kerkennah islands. Today, he pulls up only “Isis” — the name locals have given to the blue crabs that have invaded their fishing grounds in the fast-warming waters of the Mediterranean.
“The fisherman, … instead of finding fish to provide an income, he finds something that cuts his nets,” Chelli complained.
For…
