Pontoporia blainville (IMAGE) University of Barcelona Caption Los niveles de cromo, cobre, hierro y níquel han aumentado durante el período 1953-2015 en las poblaciones del cetáceo más amenazado del océano Atlántico suroccidental. Credit Massimiliano Drago, UB-IRBio Usage Restrictions The image may only be used with appropriate caption or credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.