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Marine Mammals and Low-Frequency Sound: Progress Since 1994 (2000)

Chapter: Appendix A Committee Biographies

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Suggested Citation:"Appendix A Committee Biographies." National Research Council. 2000. Marine Mammals and Low-Frequency Sound: Progress Since 1994. Washington, DC: The National Academies Press. doi: 10.17226/9756.
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Suggested Citation:"Appendix A Committee Biographies." National Research Council. 2000. Marine Mammals and Low-Frequency Sound: Progress Since 1994. Washington, DC: The National Academies Press. doi: 10.17226/9756.
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Page 100
Suggested Citation:"Appendix A Committee Biographies." National Research Council. 2000. Marine Mammals and Low-Frequency Sound: Progress Since 1994. Washington, DC: The National Academies Press. doi: 10.17226/9756.
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Page 101
Suggested Citation:"Appendix A Committee Biographies." National Research Council. 2000. Marine Mammals and Low-Frequency Sound: Progress Since 1994. Washington, DC: The National Academies Press. doi: 10.17226/9756.
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Page 102

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A Committee Biographies ~ Arthur N. Popper earned his Ph.D. in biology from the City University of New York in 1969. His research interests include vertebrate hearing; structure, func- tion, and evolution of the ear; development of ear and particularly of sensory hair cells; plasticity in the vertebrate auditory system; and innervation of the ear. Dr. Popper has been a professor in the Department of Biology at the University of Maryland, College Park, since 1987. Harry A. DeFerrari earned his Ph.D. from Catholic University of America in 1966. His research has been in the area of ocean acoustics and sound propaga- tion. Dr. DeFerrari has been a professor at the University of Miami' s Rosenstiel School of Marine and Atmospheric Sciences since 1967. William F. Dolphin earned his Ph.D. in biology from Boston University in 1988. His research interests include auditory physiology and information processing, sensory biophysics, and biosonar. Dr. Dolphin has been a research assistant professor in the Department of Biomedical Engineering and the Department of Biology at Boston University since 1991. Peggy L. Edds-Walton earned her Ph.D. in zoology from the University of Maryland, College Park, in 1994. Her research interests include vocalizations and behavior of baleen whales and auditory processing in fish. Dr. Edds-Walton is currently a research associate at the Parmly Hearing Institute and a summer scientist at the Marine Biological Laboratory, Woods Hole, Massachusetts. 101

102 APPENDIX A Gordon M. Greve earned his Ph.D. in geophysics from Stanford University in 1962. He began working for Amoco Production Company (now BP-Amoco) in 1960 and was Manager of Geophysical Research from 1980 to 1986, when he became Manager of Geophysics. Dr. Greve has been a consultant specializing in geophysical methods applied to petroleum exploration since retiring from Amoco in 1994. Dennis McFadden earned his Ph.D. in sensory psychology from Indiana Univer- sity in 1967. His research interests include sex and ear differences in hearing and temporary hearing loss induced by drugs and by exposure to intense sounds. Dr. McFadden has been a faculty member in the Department of Psychology at the University of Texas, Austin, since 1967, and is currently an Ashbel Smith Professor. Peter B. Rhines earned his Ph.D. from Trinity College, Cambridge University, in England in 1967. His research interests include circulation of the oceans; waves, eddies and currents; and climate and transport of natural and artificial trace chemicals in the seas. Dr. Rhines has been a professor of oceanography and atmospheric sciences at the University of Washington since 1984. Sam H. Ridgway earned his Ph.D. from University College (now Wolfson College), Cambridge University, in 1973. He received a Doctor of Veterinary Medicine Degree (DVM) from Texas A&M University in 1960. His research interests include marine mammal physiology (especially diving and hearing), dolphin neurobiology, and aquatic animal medicine. Dr. Ridgway has been with the U.S. Navy Marine Mammal Program since 1962. Robert M. Seyfarth earned his Ph.D. from the University of Cambridge in 1976. His research interests include auditory mechanisms and acoustic behavior of nonmarine mammals. Dr. Seyfarth has been a professor in the Department of Psychology at the University of Pennsylvania since 1985. Sharon L. Smith earned her Ph.D. in zoology from Duke University in 1975. Her research interests include ecology of zooplankton, herbivorous crustaceans, food chain dynamics, and biochemical cycling in productive areas of the ocean. Dr. Smith has been a professor at the University of Miami's Rosenstiel School of Marine and Atmospheric Sciences since 1993, before which she worked at the U.S. Department of Energy's Brookhaven National Laboratory. Peter L. Tyack earned his Ph.D. in animal behavior from Rockefeller University in 1982. His research interests include cetacean social behavior and vocaliza- tions. Dr. Tyack has been a senior scientist at the Woods Hole Oceanographic Institution since 1999.

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Sound has become a major tool for studying the ocean. Although the ocean is relatively opaque to light, it is relatively transparent to sound. Sound having frequencies below 1,000 Hertz (Hz) is often defined as low-frequency sound. The speed of sound is proportional to the temperature of the water through which it passes. Therefore, sound speed can be used to infer the average temperature of the water volume through which sound waves have passed. The relationship between water temperature and the speed of sound is the basis for the Acoustic Thermometry of Ocean Climate (ATOC) experiment. The ATOC experiment is designed to monitor the travel time of sound between sources off the coasts of Hawaii and California and several receivers around the Pacific Ocean in order to detect trends in ocean temperature and for other research and monitoring purposes.

Some whales, seals, and fish use low-frequency sound to communicate and to sense their environments. For example, baleen whales and some toothed whales are known to use and respond to low-frequency sound emitted by other individuals of their species. Sharks are not known to produce low-frequency sound but are attracted to pulsed low-frequency sounds. Therefore, it is possible that human-generated low-frequency sound could interfere with the natural behavior of whales, sharks, and some other marine animals.

Marine Mammals and Low-Frequency Sound is an updated review of the National Research Council 1994 report Low-Frequency Sound and Marine Mammals: Current Knowledge and Research Needs, based on data obtained from the MMRP and results of any other relevant research, including ONR's research program in low-frequency sound and marine mammals. This report compares new data with the research needs specified in the 1994 NRC report, focusing on the strengths and weaknesses of the data for answering important outstanding questions about marine mammal responses to low-frequency sound and identifies areas where gaps in our knowledge continue to exist.

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