Robba, who worked for the Queensland Parks and Wildlife Service, had been swimming back to a charter vessel when he was bitten by a shark. He was treated at the scene by a doctor and paramedics, and then flown by helicopter to Gladstone Hospital, but died later that night.

The government has now gazetted changes that will help “manage use of North West Island reef to exclude incompatible uses which attract sharks and to minimise health and safety risks”.

That will restrict any activities that might attract sharks, including the dumping of fish scraps, the processing of fish products, and the cleaning of fish processing equipment.

North West Island is the largest coral cay in a string of islands and part of the Capricorn Cays National Park. It is popular with day-trippers and campers.

Eight people were killed by sharks last year in Australia, which had the most fatalities of any country.