What do marine mammals eat? It’s a simple question with profound implications for marine-mammal conservation and fisheries research. But it can a be tough question for scientists to answer because they can’t see what these animals are doing underwater. MBARI researcher Kelly Benoit-Bird is finding new ways to answer this question using specialized echosounders mounted on ships and undersea robots. In a recent paper, Benoit-Bird demonstrated for the first time how researchers can simultaneously measure the distribution, abundance, type, size, and movement of both predators and their prey in the deep sea.
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Source: Phys.org