To do this, the researchers use underwater microphones called hydrophones on oceanographic moorings to listen for the sounds made by marine mammals. (sciencedaily.com)
Whale Watching Perth has three to four - hour cruises that take to the open ocean in comfortable, covered vessels, complete with underwater microphone so you can listen to their amazing songs as you watch for migrating humpback, southern right, and blue whales. (travelandleisure.com)
Researchers are using underwater microphones called hydrophones on oceanographic moorings to listen for the sounds made by marine mammals. (sciencedaily.com)