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How mussels could help clean polluted waters

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Stefan Wermuth/Reuters/File

(Read caption) A man searches for mussels on the beach at low tide on Jersey, one of the Channel Islands off the coast of France. At the mouth of the Bronx River, in New York Harbor, scientists are testing whether mussels will grow in – and help clean – polluted urban waters. Early results look positive.

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Not long ago, a boatful of shellfish researchers and I cruised downstream toward a most unlikely structure bobbing at the mouth of one of the most urban bodies of water on the planet.

The 20-foot by 25-foot form ahead of us was an experimental raft that scientists from the US National Oceanic and Atmospheric Administration (NOAA) had placed at the mouth of New York City’s Bronx River last spring. Hanging beneath it were long, sock-like tendrils that had been seeded with Geukensia demissa, commonly known as ribbed mussels. The point of the two-year experiment was to see whether mussels would survive or even thrive given the industrial and organic effluent that flows from the Bronx into the greater New York Harbor. If the mussels did in fact prosper in this environment, it could have implications for how we might help clean up coastal waters in various parts of the world.

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