France, April 26 -- The study, published on 20 April in the Current Biology journal, reveals that salmon exposed to cocaine in the water swim longer distances than those that have not been exposed.

Researchers from Griffith University in Australia and the Swedish University of Agricultural Sciences looked specifically at how cocaine might affect the movements of wild fish in their natural habitat.

"Cocaine, like other drugs, including prescription medicines, is found in wastewater all over the world," Professor Michael Bertram of the Swedish University of Agricultural Sciences told RFI. An environmental issue

The researchers collected around 100 wild Atlantic salmon from Lake Vattern in Sweden to expose them to the drugs.  

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