Likely Age-Related Hearing Loss (Presbycusis) in a Stranded Indo-Pacific Humpback Dolphin (Sousa chinensis)

Autor: Songhai, Li, Ding, Wang, Kexiong, Wang, Matthias, Hoffmann-Kuhnt, Nimal, Fernando, Elizabeth A, Taylor, Wenzhi, Lin, Jialin, Chen, Timothy, Ng
Rok vydání: 2015
Předmět:
Zdroj: Advances in experimental medicine and biology. 875
ISSN: 0065-2598
Popis: 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).
Databáze: OpenAIRE