Pure tone audiograms and possible aminoglycoside-induced hearing loss in belugas ( Delphinapterus leucas )

• Published in: The Journal of the Acoustical Society of America Vol. 117; no. 6; pp. 3936 - 3943
• Main Authors: Finneran, James J., Carder, Donald A., Dear, Randall, Belting, Traci, McBain, Jim, Dalton, Les, Ridgway, Sam H.
• Format: Journal Article
• Language: English
• Published: Woodbury, NY Acoustical Society of America 01.06.2005; American Institute of Physics
• Subjects: Acoustic Stimulation; Acoustics; Aminoglycosides - toxicity; Animals; Attention - drug effects; Audiometry, Pure-Tone; Auditory Perception - drug effects; Auditory Threshold - drug effects; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Hearing Loss - chemically induced; Inhibition (Psychology); Loudness Perception - drug effects; Marine; Noise; Physics; Psychoacoustics; Reaction Time - drug effects; Reflex, Startle - drug effects; Sound Spectrography; Underwater sound; Whales; Marine animal; Hearing; Hearing loss

A behavioral response paradigm was used to measure pure-tone hearing sensitivities in two belugas (Delphinapterus leucas). Tests were conducted over a 20-month period at the Point Defiance Zoo and Aquarium, in Tacoma, WA. Subjects were two males, aged 8–10 and 9–11 during the course of the study. Su...