Researchers from WHOI used underwater speakers to play the soundscape of a healthy coral reef at the site of a degraded coral reef. Their results found that the soundscape encouraged coral larvae to recolonize the damaged area.
WHOI biologists Nadege Aoki and Aran Mooney install an underwater speaker system to broadcast healthy reef sounds, off the coast of the U.S Virgin Islands.
Using an underwater speaker system, researchers found that broadcasting the soundscape of a healthy reef at a degraded reef caused coral larvae to settle at significantly higher rates. “If you are able to attract some of these animals to an area that maybe they aren’t going to for some reason, and if they’re able to survive and thrive there, then they are going to start producing those sounds and those cues that will attract more animals back.”
Coral reefs have been degraded in part because of rising sea temperatures. Aoki said the reefs are fragile ecosystems, also vulnerable to overfishing, nutrient overflow, and several other factors.
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