More about the Research
Research with Dr. Kelly Benoit-BirdDr. Benoit-Bird uses underwater sound to observe the foraging behavior of spinner dolphins and benthic fish. Off the islands of Hawaii, spinner dolphins and benthic fish feed on the mesopelagic boundary community. The mesopelagic boundary community is a group ("community") of small fishes, shrimps, and squids that live in the middle of the water column ("mesopelagic") and near islands ("boundary"). . The mesopelagic boundary community moves both vertically (up and down in the water column) and horizontally (inshore and offshore) each day. Using sonar, Dr. Benoit-Bird observed the movements of both the prey and the predators at the same time. Dr. Benoit-Bird showed that the daily movements of the spinner dolphins corresponded with the vertical and horizontal movement of the boundary community.