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Antidepressants In the Water Are Making Shrimp Suicidal 182

Posted by samzenpus
from the crustacean-frustration dept.
Antidepressants may help a lot of people get up in the morning but new research shows they are making shrimp swim into that big bowl of cocktail sauce in the sky. Alex Ford, a marine biologist at the University of Portsmouth, found that shrimp exposed to the antidepressant fluoxetine are 5 times more likely to swim towards light instead of away from it. Shrimp usually swim away from light as it is associated with birds or fishermen.
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Antidepressants In the Water Are Making Shrimp Suicidal

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  • by naris (830549) on Tuesday July 13 2010, @03:24PM (#32891814)
    Clams are NOT crustaceans, they are mollusks
  • by photogchris (1847394) on Tuesday July 13 2010, @03:29PM (#32891912)
    Okay, after reading the summery of the study. Parasites in shrimp can cause them to travel toward light and swim against gravity. The parasites act as a serotonin modulator. One particular antidepressant Fluoxetine does the same thing. This action can be bad for the shrimp. The level of Fluoxetine was 100 ng/L. How many liters in the gulf? About 2.43400 × 10^18 liters. So we need to dump a littler over 24 million metric tons of Fluoxetine into the gulf to see this concentration? Actually I am asking, I could be wrong on my math.

    Oh I get it, waste drugs should not be put into the ecosystem. They can affect animals just as much as humans. But the story this links to is just FUD and the study is behind a paywall.
  • by jdgeorge (18767) on Tuesday July 13 2010, @03:47PM (#32892176)

    Lots of shrimp are already being affected by this.

    The article doesn't contain enough information to justify this conclusion. The article implies that shrimp are being affected by this, but cites NOTHING that actually shows that shrimp have been affected. The researcher observed the behaviour change in shrimp in the lab when exposed to the antidepressant levels presumed to be present in the waterways containing the effluent in question. The article didn't cite any study of the behaviour of shrimp in the wild that demonstrated the problem.

    The real environmental concerns are:
    How long do these (and other) pharmaceutical chemicals last in the ocean?
    What are the effects of the numerous and various chemicals humans dump into the ocean? (My wild guess is that this antidepressant issue is the least of our worries.)

La-dee-dee, la-dee-dah.

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