New research shows dolphin by-catch includes genetic relatives

Dolphins along coast of Argentina could experience a significant loss of genetic diversity because some of the animals that accidently die when tangled in fishing nets are related. According to a new genetic analysis published this week in the journal PLoS One, Franciscana dolphins that die as by-catch are more than a collection of random individuals: many are most likely mother-offspring pairs. This result, which suggests reduced genetic diversity and reproductive potential, could have significant implications for the conservation of small marine mammals.

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