Science

Dolphins that help humans catch fish are being disturbed by ship noise

The dolphins of Laguna, Brazil, help humans catch fish, but noise pollution may threaten the relationship

Bianca Romeu

Some dolphins help humans catch fish – but perhaps not for much longer. An uptick in the levels of noise pollution from nearby ships is changing the way the dolphins communicate. It is possible this may reduce the dolphins’ ability to coordinate their behaviour to their – and the humans – advantage.

Near the city of Laguna in southern Brazil, a group of Lahille’s bottlenose dolphins (Tursiops truncatus gephyreus) work together to drive schools of fish like mullet into the shallow water where fishers …

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