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DNA collected from seawater may solve mysteries about world’s largest fish [Science]

par Frédéric Magné - publié le

Using only the DNA from sloughed-off cells floating in the ocean, scientists have been able to determine the population size and genetic properties of one of the world’s largest and most mysterious animals : the whale shark. The work marks the first time researchers have been able to use so-called environmental DNA (eDNA) to estimate the genetic characteristics of an aquatic species, and it could help scientists study the population and health of a wide range of marine animals without ever setting foot in the water.

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