Higher temperatures may reduce antidepressant contamination of waterways

Researchers have investigated how small Daphnia magna are affected by both fluoxetine and elevated temperatures. Credit: Lucinda Aulsebrook

A new study led by a biologist at Monash University found that higher temperatures may reduce the effects of antidepressant contamination on wildlife.

However, this study emphasizes that this does not mean that global warming is a good thing.

Hundreds of medicines reach the environment after human use, and scientists are learning how this affects wildlife in connection with other phenomena such as temperature rise.

In a study published today in the journal Bulletin of the Royal Society B, Researchers explain the impact of Fluoxetine, Active ingredient Of the commonly prescribed antidepressant Prozac temperature Will increase.

Principal Research Author Lucinda Aulsebrook, Ph.D. Candidates for the Monash Department of Life Science said that fluoxetine is being discharged from sewage treatment systems and is increasingly being found in low concentrations in waterways and lakes.

“Scientists have discovered many effects of this drug on wildlife, but it’s easy to overlook how these effects depend on other factors in the environment,” Lucinda said.

“of Natural ecosystemAnimals are not just experiencing drug contamination, they are experiencing many different stressors, both natural and artificial, “she said.

“Climate change is causing higher temperatures around the world, so we need to consider how this affects wildlife in relation to pollutants such as fluoxetine.”

Lucinda and her colleagues said that a small aquatic crustacean called Daphnia magna was fluoxetine. The temperature rises..

Studies show that when exposed to environmentally realistic concentrations of fluoxetine (only 30 nanograms per liter), Body size Producing offspring with water fleas at 20 degrees Celsius. But when temperatures rose to 25 degrees Celsius, these effects disappeared.

“This really shows how important it is to consider all the different factors that exist in the environment,” says Lucinda.

“A rise of 5 degrees Celsius was sufficient to dramatically reduce the effects of fluoxetine.

“Our study emphasizes the fact that the documented effects of chemical pollutants can be context-dependent and many different variables can affect results.”

Antidepressants that pollute water can change the behavior of fish

For more information:
Lucinda C. Aulsebrook et al, High temperatures limit the impact of antidepressant contamination on life history features. Bulletin of the Royal Society B: Biological Science (2022). DOI: 10.1098 / rspb.2021.2701

Provided by
Monash University

Quote: Higher temperatures may reduce antidepressant contamination of waterways (February 9, 2022).

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Higher temperatures may reduce antidepressant contamination of waterways

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