Game of thorns on the Barrier Reef

ABC News

16 January 2014

Tour boat operators, with the help of a $1.1 million government grant, are at the forefront of the fight to manage the impact of the crown of thorns starfish on the Great Barrier Reef. This gallery explores how they do it.

Col McKenzie says teams of around 10 divers stay at sea for 10-day trips, diving four times each day and ultimately destroying around 5,000 starfish each trip. But the teams are having little impact. Read more