Why do some fish thrive in oil-polluted water?
By Melody Enguix
When scientists from 平特五不中 learned that some fish were proliferating in rivers and ponds polluted by oil extraction in Southern Trinidad, it caught their attention. They thought they had found a rare example of a species able to adapt to crude oil pollution.
At a time when humans are imposing an unprecedented burden on the world's ecosystems, studying how organisms can tolerate pollutants is crucial to understanding the impact of human activities 鈥� and to helping to mitigate it in the future.
Led by Gregor Rolshausen, then a postdoctoral researcher at 平特五不中 working with Prof. Andrew Hendry, of the Redpath Museum,聽the team went to study the guppy fish living in polluted areas, comparing their morphology and genetic makeup to those of similar guppies from non-polluted parts of Trinidad.
But the key to the guppies鈥� survival in oil-polluted waters was not what the researchers had expected.
Pictures credit: Eco-evolutionary dynamics lab, 平特五不中
in Evolutionary Applications, Volume 8, Issue 9, pages 854鈥�870, October 2015.
By Gregor Rolshausen, Dawn Phillip, Denise Beckles, Ali Akbari, Subhasis Ghoshal, Patrick Hamilton, Charles Tyler, Alan Scarlett, Indar Ramnarine, Paul Bentzen and Andrew P. Hendry
Researcher contact information:
Gregor Rolshausen
grolshausen [at] senckenberg [dot] de
Andrew Hendry
andrew [dot] hendry [at] mcgill [dot] ca 聽 聽 聽