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Overfishing of Atlantic Cod Likely Did Not Cause Genetic Changes

Reply Atlantic cod habitat includes both sides of the north Atlantic Ocean and beyond. (Image: NOAA) Overfishing likely did not cause the Atlantic cod, an iconic species, to evolve genetically and mature earlier, according to a study led by Rutgers University and the University of Oslo – the first of its kind – with major implications for ocean conservation. Evolution has been used in part as an excuse for why cod and other species have not recovered from overfishing, said first author Malin L. Pinsky, an associate professor in the Department of Ecology, Evolution, and Natural Resources in the School of Environmental and Biological Sciences at Rutgers University–New Brunswick. Our findings suggest instead that more attention to reducing fishing and addressing other environmental changes, including climate change, will be important for allowing recovery. We can t use evolution as a scapegoat for avoiding the hard work that would allow cod to recover.

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