US EditionCocaine Pollution Alters Salmon Behavior in the Wild, Study Reveals
Researchers found benzoylecgonine pushed smolts to swim up to 1.9 times farther per week and disperse 12.3 kilometers farther.
- On Monday, Current Biology published research showing Juvenile Atlantic salmon exposed to Benzoylecgonine swam significantly farther than unexposed fish in a Lake in Sweden.
- Scientists tracked 105 Juvenile Atlantic salmon over eight weeks in a Lake, dividing them into three groups of 35 to test Cocaine and Benzoylecgonine exposure against a control group.
- Benzoylecgonine caused fish to swim up to 1.9 times farther per week, with a 60 percent increase in dispersion reaching up to 12.3 kilometers compared to control groups.
- Jack Brand of the Swedish University noted that risk assessments typically focus on parent compounds, overlooking that Benzoylecgonine is often more common and biologically active in waterways.
- Marcus Michelangeli of the Australian Rivers Institute warned that altered movement could change predator encounters and foraging, though researchers emphasized findings pose no risk to people consuming Fish.
16 Articles
16 Articles
Researchers observed changes in movement and migration in juvenile fish exposed to drug residues present in water
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Cocaine contaminated water makes salmon swim faster: study
Previous research has shown cocaine could affect animal behavior.
Cocaine pollution alters salmon behavior in the wild, study reveals
An international study, led by researchers from Griffith University, the Swedish University of Agricultural Sciences, the Zoological Society of London and the Max Planck Institute of Animal Behavior, is the first to demonstrate the effects of cocaine contamination on fish behavior in the wild rather than in laboratory conditions.
A controlled experiment in a Swedish lake reveals that fish exposed to drug remains changed their behavior and swam to more distant areas. Now they want to study whether it affects their health and reproduction. Read
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