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Likely age-related hearing loss (presbycusis) in a stranded Indo-Pacific humpback dolphin (Sousa chinensis)
Li, S.; Wang, D.; Wang, K.; Hoffmann-Kuhnt, M.; Fernando, N.; Taylor, E.A.; Lin, W.; Chen, J.; Ng, T. (2016). Likely age-related hearing loss (presbycusis) in a stranded Indo-Pacific humpback dolphin (Sousa chinensis), in: Popper, A.N. et al. (Ed.) The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875: pp. 623-629. hdl.handle.net/10.1007/978-1-4939-2981-8_75
In: Popper, A.N.; Hawkins, A. (Ed.) (2016). The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875. Springer Science+Business Media, Inc: New York. ISBN 978-1-4939-2980-1. xxx, 1292 pp., more
In: Advances in Experimental Medicine and Biology. Springer: Berlin. ISSN 0065-2598, more
Peer reviewed article  

Available in  Authors 

Keywords
    Marine mammals; Noise; Odontocete Flower, 1865 [WoRMS]; Sousa chinensis (Osbeck, 1765) [WoRMS]; Marine
Author keywords
    Chinese white dolphin; Auditory evoked potential

Authors  Top 
  • Li, S.
  • Wang, D.
  • Wang, K.
  • Hoffmann-Kuhnt, M.
  • Fernando, N.
  • Taylor, E.A.
  • Lin, W.
  • Chen, J.
  • Ng, T.

Abstract
    The hearing of a stranded Indo-Pacific humpback dolphin (Sousa chinensis) in Zhuhai, China, was measured. The age of this animal was estimated to be ~40 years. The animal’s hearing was measured using a noninvasive auditory evoked potential (AEP) method. The results showed that the high-frequency hearing cutoff frequency of the studied dolphin was ~30–40 kHz lower than that of a conspecific younger individual ~13 year old. The lower high-frequency hearing range in the older dolphin was explained as a likely result of age-related hearing loss (presbycusis).

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