Freeing pet catfish can devastate ecosystems

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Freeing pet catfish can devastate ecosystems
August 21, 2013,
By Krishna Ramanujan,
Cornell Chronicle,
Cornell University,

Popular aquarium catfish wreak havoc in aquatic ecosystems worldwide after people set them free.

A new Cornell study, published Aug. 21 in the Proceedings of the Royal Society B, explains why the invaders, when they become abundant in non-native waters, can change the structure and function of ecosystems.