Tag Archives: shark

Cold War nuclear bomb tests reveal true age of whale sharks

The radioactive legacy of the arms race solves a mystery about the world’s largest fish.

Text Box:  A whale shark vertebra from Pakistan, in cross section, showing 50 growth bands. Credit: Paul Fanning, Pakistan node of the UN Food and Agricultural Organisation.
AIMS researcher Mark Meekan swimming with a whale shark. (Horizontal)
Credit: Wayne Osborn

Atomic bomb tests conducted during the Cold War have helped scientists for the first time correctly determine the age of whale sharks.

The discovery, published in the journal Frontiers in Marine Science, will help ensure the survival of the species – the largest fish in the world – which is classified as endangered.

Continue reading Cold War nuclear bomb tests reveal true age of whale sharks

Reef rescue

French and Australian scientists are working together to understand how climate change is affecting reef sharks in French Polynesia, why corals in New Caledonia can survive extremes of temperature and acidity, and what fish markets mean for reef health.

Baby sharks

On Mo’orea in French Polynesia, Dr Jodie Rummer leads a project studying baby sharks to see how they will cope with climate change.

“Healthy reefs need healthy predators,” Jodie says. “And healthy predators need healthy reefs.” Continue reading Reef rescue