Extraordinary migration of giant Amazon catfish revealed
by Damian Carrington from on (#2BSZT)
The dorado catfish travels 11,600km from the Andes to the mouth of the Amazon and back, but is threatened by dams and mining
A giant silvery-gold catfish undertakes the longest freshwater migration of any fish, according to new research, travelling 11,600km from the Andes to the mouth of the Amazon and back.
The dorado catfish, which can grow up to 2 metres long, is an important source of food for people along the world's longest river. It was suspected of making a spectacular journey, but a careful new analysis of the distribution of larvae and juvenile and mature adults has confirmed the mammoth migration.
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