The sonso is one of the most prized fish on the Costa Brava. Very small in size, around 10 centimeters long, it is usually served floured and fried. An excellent tapa to whet the appetite, the kind you just keep eating, present in many of the seafood restaurants and bars in Catalonia. In recent years, however, sonso catches have fallen significantly on the Catalan coast and, from the Generalitat, at the behest of the European Union, a management plan has been drawn up that regulates catch limits and long closed seasons during autumn and winter.