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Nel 1998 il CITES (Convenzione sul commercio internazionale delle specie minacciate di estinzione) inserisce tutte le specie di Acipenseriformi - storioni e spatole –nella lista delle specie sottoposte a tutela. Il mondo incomincia a riflettere seriamente sulle conseguenze della pesca incontrollata di storioni. Ma al caviale si fatica a rinunciare e così si intensificano iniziative imprenditoriali per l’allevamento di storioni in Italia, Francia e USA.
In Italia, uno degli allevamenti più famosi di storione è a Calvisano, in provincia di Brescia: qui si cerca di produrre caviale in modo sostenibile.
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