Van Holliday: A lifetime of contributions to acoustical oceanography

Van Holliday's achievements have transformed the acoustical study of marine biology. Working closely with colleagues from fisheries and marine biology, he brought his keen understanding of acoustics and lively curiosity to the solution of many challenging problems. In reviewing his accomplishments one is struck by their range and by the special way in which he reached out to the fields to which he contributed. For example, when he solved a problem such as acoustical scattering by fish schools, he quickly saw the possibilities of exploiting his new understanding to study schooling behavior. He explored the characteristics of ice noise, he was the first to track the movement of whales acoustically and he made major contributions to our understanding of the scattering of sound by zooplankton. His work on plankton acoustics led to the important new sub-discipline of spectral acoustic determination of zooplankton populations and their behavior. His profound contributions to biology, biophysics, and other marin...