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Yale Environment 360: Exposure to even tiny amounts of copper can impair a salmon’s ability to detect and evade predator species, a new study has found. While salmon typically become still and alert after they smell a compound called Schreckstoff, which is released when a fish is damaged nearby, Washington State University (WSU) researchers say fish exposed to just five parts of copper per billion are unable to detect the substance, making them more vulnerable to attack. In a series of tests conducted in a four-foot diameter......
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Copper Exposure Increases Salmon Vulnerability to Predators, Study Says
Posted by Washington Post: Juliet Eilperin on July 10th, 2012
Posted in Water Conservation