GoKawiilWHOI scientists use reef sound recordings to lure coral larvae to damaged reefs
Researchers at the Woods Hole Oceanographic Institution, led by marine bioacoustician Aran Mooney, are playing underwater recordings of healthy reef sounds—like snapping shrimp and fish noise—near degraded Caribbean reefs during coral spawning season. The approach exploits a discovery that coral larvae can sense and follow sound cues when searching for a place to settle. Teams are also relocating corals to cooler, deeper waters and adding protective microorganisms as record ocean heat and a strong El Niño drive fresh coral bleaching concerns.
GoKawiil's interpretation of the reporting above, not reported fact.
The tactic reflects growing urgency among scientists to find low-cost, scalable interventions as warming oceans outpace traditional reef protection efforts. If sound-based larval attraction proves effective, it could become one of several tools—alongside relocation and probiotic treatments—used to rebuild reef systems damaged by bleaching. However, these remain experimental measures responding to a crisis rather than confirmed long-term solutions.
- WHOI researchers are broadcasting healthy reef sounds to attract coral larvae to degraded reefs.
- Coral larvae can sense sound and use it as a settlement cue, according to the researchers.
- Scientists are combining this with coral relocation and microbial treatments amid record ocean heat and a strong El Niño.
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Published there as: “The super El Niño is cooking coral reefs — can lullabies and probiotics save them?”
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