• Fish exposed to antidepressants exhibit altered behavior

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    Concentrations of Prozac as low as 1 microgram per liter (?g/L), a concentration that has been found in many freshwater environments, were found to significantly impact the mating behavior of fathead minnows, specifically nest building and defending. Males were also found to display aggression, isolation, and repetitive behaviors at higher concentrations. Predator avoidance behaviors in males and females were also impacted at 1 ?g/L. Feeding was impacted at 10 ?g/L and in the highest exposure (100 ?g/L), egg production was limited by deaths of females due to significant male aggressive behaviors in the first two weeks of exposure. “With increased aggression, in the highest level of concentration, female survivorship was only 33% compared to the other exposures that had a survivorship of 77–87.5%. The females that died had visible bruising and tissue damage,” according to c0-author Rebecca Klaper.

    Amsterdam, April 16, 2014 – Fish exposed to the antidepressant Fluoxetine, an active ingredient in prescription drugs such as Prozac, exhibited a range of altered mating behaviours, repetitive behaviour and aggression towards female fish, according to new research published on in the latest special issue of Aquatic Toxicology: Antidepressants in the Aquatic Environment.

    The authors of the study set up a series of experiments exposing a freshwater fish (Fathead Minnow) to a range of Prozac concentrations. Following exposure for 4 weeks the authors observed and recorded a range of behavioural changes among male and female fish relating to reproduction, mating, general activity and aggression. On a positive note, author Rebecca Klaper, Director of the Great Lakes Genomics Center at University of Wisconsin-Milwaukee, emphasizes that the impact on behaviour is reversible once the concentration level is reduced.

    There is an increasing proportion of antidepressants prescriptions, and like most prescription drugs, they end up, …

    Antidepressants in the Aquatic Environment. The authors of the study set up a series of experiments exposing a freshwater fish (Fathead Minnow) to a range of Prozac concentrations. Following exposure for 4 weeks the authors observed and recorded a range of behavioural changes among male and female fish.

    Please Read this Article at NaturalBlaze.com

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