Coral and fish can 'smell' bad reefs
Baby corals and fish can smell the difference between good and bad reefs, according to a study based in Fiji. When offered a choice of two water samples in the lab, the animals turned away from the stench of seaweed that invades depleted reefs, but were drawn to the smell of healthy coral. It is the first time that corals have been shown to react over long distances to chemical "smells" in the water. The findings suggest that controlling seaweed is key to repopulating reefs.
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