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Some Fish Quickly Adapt to Lethal Levels of Pollution

Some Fish Quickly Adapt to Lethal Levels of Pollution

Killifish living in four polluted East Coast estuaries have adapted to survive levels of toxic industrial pollutants that would normally kill them, tolerating concentrations up to 8,000 times higher than sensitive fish. A new study reveals the complex genetic basis for the Atlantic killifish’s remarkable resilience.

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Pollution Triggers Genetic Resistance Mechanism in a Coastal Fish

For 30 years, two General Electric facilities released about 1.3 million pounds of polychlorinated biphenyls (PCBs) into New YorkA?s Hudson River, devastating and contaminating fish populations. Some 50 years later, one type of fishA?the Atlantic tomcodA?has not only survived but appears to be thriving in the hostile Hudson environment.

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New Iron-Eating Microbe Major Component of Mining Pollution and Iron and Sulfur Cycling

A new microbe that eats iron and lives in some of the most acidic conditions found on earth has been identified as a major player in the environmental damage caused by metal ore mining. It also raises questions about the ability of microbes to survive in extremely toxic environments on earth or on other planets, and what role these organisms play in the cycling of iron and sulfur in the environment.

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