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Cocaine flushed into waterways is actively disrupting Atlantic salmon behavior in the wild, not just in labs. Fish exposed to benzoylecgonine swam nearly twice as far per week and dispersed over 12 km farther than unexposed fish — a dramatic shift in how these animals use their habitat. Wildlife is already absorbing human drug waste daily, and the ecological consequences for vulnerable species like Atlantic salmon could be severe.
Cocaine pollution is reshaping salmon movement in ways science is only beginning to grasp, and the long-term consequences for survival and reproduction remain completely unknown. Hatchery-raised fish behave differently than wild ones, so the full scope of this threat in natural populations still needs serious study. Society's chemical footprint in waterways demands urgent, careful management before irreversible damage is done to aquatic ecosystems.