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Last updated on April 17, 2014 at 13:30 EDT

Latest Andrew Hoey Stories

2011-03-09 13:44:31

Preserving an intact population of weed-eating fish may be vital to saving the world's coral reefs from being engulfed by weed as human and climate impacts grow. A new study by researchers at the ARC Centre of Excellence for Coral Reef Studies has found weed-eaters like parrotfish and surgeonfish can only keep coral reefs clear of weed up to a point. After the weeds reach a certain density, they take over entirely and the coral is lost. For some years researchers have pinned their hopes on...