Free-floating DNA to reveal the health of river and lake ecosystems

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Free-floating DNA to reveal the health of river and lake ecosystems

Environment

14 May 2019

Linda Pitkin/2020VISION/naturepl.comBy Adam Vaughan
The mix of DNA floating in rivers and lakes will finally be used to monitor the state of aquatic ecosystems, after years of tests to show that the technique works.
Conventionally, aquatic life is monitored by capturing organisms, either by using nets or scraping under boulders, for examination. These techniques are time-consuming, can harm species and require skilled ecologists. Monitoring fish typically involves using electricity to stun them, which can sometimes prove fatal.

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But these techniques could be replaced by simply taking a water sample and …

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