David Zeddies, PhD
Staff Scientist/Engineer
JASCO Applied Sciences

phone: 301-787-9329



David received a BS in Mechanical Engineering from the University of Illinois at Urbana-Champaign (1990) and a PhD in Neuroscience from Northwestern University (2001). He was a Post-doctoral Associate in the lab of Dr Richard Fay at the Parmly Hearing Institute at Loyola University of Chicago from 2001 to 2003 and a Research Associate in the lab of Arthur Popper at the University of Maryland from 2004 to 2008. David was a staff scientist and engineer at Marine Acoustics Inc from 2008 to 2011 before becoming a senior scientist at JASCO Applied Sciences in 2011. He has been a NSFco-investigator (2006-present) and collaborator with Sisneros and his lab since 2003.

Research Interests
David's research interests are diverse ranging from sensory neurobiology to physical acoustics and from computional modeling and signal processing to instrumentation. He is active in a number of research projects including a NSF funded project directed at exploring how fish use sound to understand and navigate their environment. As a staff scientist/engineer he provides environmental risk assessment for marine operations, including sonar, seismic exploration, and construction and operation of alternative energy devices.

Popper, A.N., Hawkins, A.D., Fay, R.R., Mann, D., Bartol, S., Carlson, T., Coombs, S., Ellison, W.T., Gentry, R., Halvorsen, M.B., Løkkeborg, S., Rogers, P., Southall, B.L., Zeddies, D., Tavolga, W.N. 2014. Sound Exposure Guidelines for Fishes and Sea Turtles: A Technical Report prepared by ANSI-Accredited Standards Committee S3/SC1 and registered with ANSI. ASA S3/SC1.4 TR-2014. Springer and ASA Press, Cham, Switzerland. (link)

Coffin AB*, Zeddies DG*, Fay RR, Brown AD, Alderks PW, Bhandiwad AA, Mohr RA, Gray MD, Rogers PH and JA Sisneros. 2014. Use of the swim bladder and lateral line in near-field sound source localization by fishes. Journal of Experimental Biology 217:2078-2088.

Frankel AS, Zeddies DG, Simard P, and DA Mann. 2014. Whistle source levels of free-ranging bottlenose dolphins and Atlantic spotted dolphins in the Gulf of Mexico. Journal of the Acoustical Society of America 135:1624-1631.

Halvorsen MB, Zeddies DG, Chicoine D, Popper AN. 2013. Effects of low-frequency naval sonar exposure on three sp
ecies of fish. Journal of the Acoustical Society of America 134:EL205-EL210.

Bhandiwad AA, Zeddies DG, Raible DW, Rubel EW and JA Sisneros. 2013. Auditory sensitivity of larval zebrafish (Danio rerio) measured using a behavioral prepulse inhibition assay. Journal of Experimental Biology 216:3504-3513.

Halvorsen MB, Zeddies DG, Ellison WT, Song J, Chicoine DR, and Popper AN. 2012. Effects of mid-frequency active sonar on hearing in fish. Journal of the Acoustical Society of America 131:599-607.

Zeddies DG, Fay RR, Gray MD, Alderks PW, Acob A, and JA Sisneros, J.A. 2012. Local acoustic particle motion guides sound source localization behavior in the plainfin midshipman fish (Porichthys notatus). Journal of Experimental Biology 215:152-160.

Zeddies DG, Fay RR, and JA Sisneros 2011. Sound Source Localization and Directional Hearing in Fishes. In Farrell, AP (ed.), Encyclopedia of Fish Physiology: From Genome to Environment, volume 1, pp. 298-303. San Diego: Academic Press.

Zeddies DG, Fay RR, Alderks PW, Shaub KS, and JA Sisneros. 2010. Sound source localization by the plainfin midshipman fish, Porichthys notatus. Journal of the Acoustical Society of America 127:3104-3113.

Kane, A S, Song J, Halvorsen MB, Miller DL, Salierno JD, Wysocki LE, Zeddies DG, and AN Popper. 2010. Exposure of fish to high intensity sonar does not induce acute pathology. Journal of Fish Biology 76:1825-1840.

Simard P, Hibbard AL, McCallister KA, Frankel AS, Zeddies DG, Sisson GM, Gowans S, Forys EA, Mann DA. 2010. Depth dependent variation of the echolocation pulse rate of bottlenose dolphins (Tursiops truncatus). Journal of the Acoustical Society of America 127:568-578.

Rogers PH. and DG Zeddies. 2007. Multipole mechanisms for directional hearing in fish. In: Web JF, Fay, RR and Popper, AN (eds) Fish Bioacoustics. New York: Springer-Verlag, pp 233-252.

Kwak S, Vemarajou S, Moorman SJ, Zeddies DG, Popper AN, and BB Riley. 2006. Zebrafish pax5 regulates development of the utricular macula and vestibular function. Develop. Dynamics 235:3026-3038.

Zeddies DG and RR Fay. 2005. Development of the acoustically evoked behavioral response in zebrafish to pure tones. Journal of Experimental Biology 208:1363-1372.

Zeddies DG and JH Siegel. 2004. A biophysical model of an inner hair cell. Journal of the Acoustical Society of America 116:426-441.

* Denotes equal contribution as co-first authors


Last updated 7-1-14

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