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Researchers are listening to the breath of streams

Streams need to breath, just as humans, to stay healthy. This allows oxygen to improve water quality and sustain fish life, and greenhouse gases out which affects global warming. Gas exchange is driven by turbulence and bubbles, which in turn generate the characteristic stream flow sound. Researchers from Umeå University have developed a new method that uses sound recordings to estimate how fast gases exchange between air and water. The study is published in Limnology and Oceanography: Methods.