December 2000. Scientists publish a report in Environmental Health
Perspectives detailing a high proportion of wild chinook salmon
breeding in Washington State's Columbia River have been sex reversed,
from female to male. More...
September 2000. The BBC reports that endocrine disruption of fish
is widespread in northern Europe, with confirmations obtained
from 5 of 7 countries examined. Up to 100% of fish are affected
in some river systems. A combination of industrial compounds and
human urinary metabolites (from drugs) appear to be the cause. More...
2000. Researchers report that when eggs of a fish, the Japanese
medaka, are exposed to DDT, genetic males are feminized so thoroughly
that they can become fully fertile females. More...