Laura is a science news writer, covering a wide variety of subjects, but she is particularly fascinated by all things aquatic, paleontology, nanotechnology, and exploring how science influences daily life. Laura is a proud former resident of the New Jersey shore, a competitive swimmer, and a fierce defender of the Oxford comma.
Healthy reefs are known as vibrant homes for colorful corals and fish.. As with any bustling ecosystem, they have their own sounds and can be quite noisy. The purrs, croaks, and grunts of fish and crustaceans that live there and the sounds of healthy coral growing can echo through the water. Larval animals may use some of this sound to help them determine where to put down roots or when it's time to grow.
Greg McFall/NOAA The team installed an underwater speaker system at the Salt Pond reef and placed cups of larvae at distances of 3.2, 16.2, 32.8, and 98.4 feet from the speakers. For three nights, they then played healthy reef sounds at Salt Pond that were recorded at Tektite in 2013. They also set up similar installations at Tektite and Cocoloba, but did not play any of the recorded reef sounds.
Sensory Ecology and Bioacoustics Lab, © Woods Hole Oceanographic Institution; with support from the National Park Service, US Virgin Islands. “The fact that settlement is consistently decreasing with distance from the speaker, when all else is kept constant, is particularly important because it shows that these changes are due to the added sound and not other factors,” study co-author and WHOI marine biologist Aran Mooney said in a statement.
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