Twenty seven percent of freshwater fish in Africa are threatened, including the tilapia (Oreochromis karongae), an important food source in Lake Malawi that has been overfished. Credit: Claire Ngozo/IPS

Twenty seven percent of freshwater fish in Africa are threatened, including the tilapia (Oreochromis karongae), an important food source in Lake Malawi that has been overfished. Credit: Claire Ngozo/IPS

 
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