Mystery sea urchin deaths threaten Red Sea coral reefs
Sea algae could take over coral reefs after an unknown disease decimated sea urchin populations. …
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To illustrate the speed with which the disease has spread, he recounts a personal story of taking a diving holiday in Nuweiba in Egypt, about 80km (50 miles) to the south, after he had begun monitoring the loss of the black sea urchins in the very north of the Gulf of Aqaba.