health tagged posts

Ultrasounds for coral reefs?

Coral reef

Scientists have tested a surprisingly cheap and effective way to assess the health of vulnerable coral reefs and to monitor threats on remote atolls: eavesdropping.

In a study, published Aug. 6, 2015 in Marine Ecology Progress Series, scientists at Woods Hole Oceanographic Institution (WHOI) used low-cost autonomous underwater recorders over four months to collect “soundscapes” of reefs in in the U.S. Virgin Islands. They showed how the collective sound recordings of reef inhabitants painted vivid pictures of the reefs’ abundance and diversity.

In a second study, published the same day in Marine Pollution Bulletin, the researchers recorded boat noise — showing how it could mask vital sounds that organisms make to reproduce, feed, and find new homes...

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