Research Interests:Development and use of technology for economically studying fish and zooplankton distributions and abundances, predator-prey interactions, and ecosystems over large time- and space-scales. Current studies include the development of: 1) autonomous instrumented buoys, landers, and small-craft; 2) a multi-scattering method and hyperbaric chamber for measuring broad bandwidth total target strengths; 3) methods for in-situ multi-frequency target strength measurements; 4) multi frequency techniques for acoustical taxa identification; and 5) an acoustical-optical technique for surveying demersal fish and their physical oceanographic and benthic habitats.
- B.S., Electrical and Computer Engineering, 1986, University of Arizona, Tucson, AZ
- Ph.D., Electrical and Computer Engineering / Applied Ocean Science, 1994, University of California San Diego / Scripps Institution of Oceanography, La Jolla, CA
- D.A. Demer, M.A. Soule and R.P. Hewitt, “A Multi-frequency method for improved accuracy and precision of in situ target strength measurements,” J. Acoust. Soc. Am. 105 (4): 2359-2376. (1999).
- D.A. Demer, S. Conti, J. De Rosny and P. Roux, “Absolute measurements of total target strength from reverberation in a cavity,” J. Acoust. Soc. Am., 113(3):1387-1394 (2003).
- D.A. Demer, “An estimate of error for the CCAMLR 2000 survey estimate of krill biomass,” Deep-Sea Research II, 51:1237–1251 (2004).
- D.A. Demer, and S.G. Conti, “New target-strength model indicates more krill in the Southern Ocean,” ICES Journal of Marine Science, 62(1):25-32 (2005).
Curriculum Vitae File