For the first time a study has shown that marine reserves enhance coral health on the Great Barrier Reef. On average the reserves had a 1-percent level of coral disease, compared to 5 percent on average outside the reserves, and even up to 9 percent in certain areas. Coral tissue damaged by discarded fishing line and other fishing-related activities is more vulnerable to disease, researchers explain, as exposed coral skeleton provides an entry point for pathogens to infect, leading to spreading tissue loss.
Great Barrier Reef coral significantly safer in no-fishing reserves, study finds
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