Female sex hormones can weaken the ability of fish to protect themselves against environmental toxins
Friday, February 24, 2012 - 20:30
in Biology & Nature
It is well known that female sex hormones (estrogens) that end up in rivers and lakes, primarily via spillage from sewers and livestock farming, pose a threat to the environment. Some environmental toxins can also have the same impact as estrogens. One example of such substances are degradation products (metabolites) from the pollutant PCB.