A healthy fish population could be the key to ensuring coral reefs survive the impacts of climate change, pollution, overfishing and other threats.
Australian scientists found that some fish act as "lawnmowers", keeping coral free of kelp and unwanted algae.
The Great Barrier Reef is worth about six billion Australian dollars (US$5.5bn; £2.8bn) to the national economy, primarily through tourism and fishing.
BBC Website: 'Fish key to reef climate survival '
Indeed - we need a blog post on Jen's interview.
Jennifer, my wife and I loved your piece in today's Oz! Keep up the good work.
Tim