{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T11:56:26Z","timestamp":1785326186626,"version":"3.55.0"},"reference-count":46,"publisher":"The Company of Biologists","issue":"22","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2013,11,15]]},"abstract":"<jats:title>SUMMARY<\/jats:title>\n               <jats:p>The hearing and echolocation clicks of a stranded Indo-Pacific humpback dolphin (Sousa chinensis) in Zhuhai, China, were studied. This animal had been repeatedly observed in the wild before it was stranded and its age was estimated to be ~40 years. The animal's hearing was measured using a non-invasive auditory evoked potential (AEP) method. Echolocation clicks produced by the dolphin were recorded when the animal was freely swimming in a 7.5 m (width)\u00d722 m (length)\u00d74.8 m (structural depth) pool with a water depth of ~2.5 m. The hearing and echolocation clicks of the studied dolphin were compared with those of a conspecific younger individual, ~13 years of age. The results suggested that the cut-off frequency of the high-frequency hearing of the studied dolphin was ~30\u201340 kHz lower than that of the younger individual. The peak and centre frequencies of the clicks produced by the older dolphin were ~16 kHz lower than those of the clicks produced by the younger animal. Considering that the older dolphin was ~40 years old, its lower high-frequency hearing range with lower click peak and centre frequencies could probably be explained by age-related hearing loss (presbycusis).<\/jats:p>","DOI":"10.1242\/jeb.091504","type":"journal-article","created":{"date-parts":[[2013,10,31]],"date-time":"2013-10-31T00:33:02Z","timestamp":1383179582000},"page":"4144-4153","source":"Crossref","is-referenced-by-count":35,"title":["Possible age-related hearing loss (presbycusis) and corresponding change in echolocation parameters in a stranded Indo-Pacific humpback dolphin"],"prefix":"10.1242","volume":"216","author":[{"given":"Songhai","family":"Li","sequence":"first","affiliation":[{"name":"Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, Singapore 119227"},{"name":"Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology of the Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ding","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology of the Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kexiong","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology of the Chinese Academy of Sciences, 7 South Donghu Road, Wuhan 430072, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"Hoffmann-Kuhnt","sequence":"additional","affiliation":[{"name":"Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, Singapore 119227"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nimal","family":"Fernando","sequence":"additional","affiliation":[{"name":"Ocean Park Corporation, 180 Wong Chuk Hang Road, Aberdeen, Hong Kong SAR, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elizabeth A.","family":"Taylor","sequence":"additional","affiliation":[{"name":"Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, Singapore 119227"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenzhi","family":"Lin","sequence":"additional","affiliation":[{"name":"The Pearl River Estuary Chinese White Dolphin National Nature Reserve, 23 South Road Zhuhai Tangjia, Guangdong, 519080, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jialin","family":"Chen","sequence":"additional","affiliation":[{"name":"The Pearl River Estuary Chinese White Dolphin National Nature Reserve, 23 South Road Zhuhai Tangjia, Guangdong, 519080, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy","family":"Ng","sequence":"additional","affiliation":[{"name":"Ocean Park Conservation Foundation, Hong Kong, 180 Wong Chuk Hang Road, Aberdeen, Hong Kong SAR, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"237","reference":[{"key":"2021042507103921900_R1","doi-asserted-by":"crossref","DOI":"10.1007\/978-1-4612-4356-4","volume-title":"The Sonar of Dolphins","author":"Au","year":"1993"},{"key":"2021042507103921900_R2","first-page":"S42","article-title":"Directional hearing in the Atlantic bottlenose dolphin (Tursiops truncatus)","volume":"72","author":"Au","year":"1982","journal-title":"J. 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