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Study reveals alarming decline in Queensland’s tiger sharks

Tiger shark populations have unexpectedly declined by more than 70 per cent in Queensland’s coastal waters, according to research led by Griffith University in Brisbane.

Chris Brown, an ecologist with the university’s Australian rivers institute, said the decline had been “particularly rapid in southern regions” of the state’s coastline.

“Tiger sharks are top predators that have few natural enemies, so the cause of the decline is likely overfishing,” he said in a university statement.

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