Source: BBC Science and Environment
Swedish scientists from Umea University tested laboratory perch with low levels of the anti-anxiety drug Oxazepam and found that the fish ate faster, became less social, and were bolder in their actions than fish not exposed to the drug.
Researchers from Umea University exposed lab fish to levels of the drug that are roughly equivalent to amounts currently found in waterways. Significant amounts of psychiatric drugs are excreted by humans and flushed into waterways, where they likely change the behavior of wild fish in a way similar to the perch in the study.
Beyond the effects on fish, their findings could have broader ecological impacts, and it is hard to predict how changes in the eating habits of an individual species will affect the food chain in their surrounding habitat.
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