Premium
Ship noise‐induced temporary hearing threshold shift in the C hinese sucker M yxocyprinus asiaticus ( B leeker, 1864)
Author(s) -
Liu M.,
Wei Q.W.,
Du H.,
Fu Z.Y.,
Chen Q.C.
Publication year - 2013
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/jai.12345
Subject(s) - auditory fatigue , noise (video) , audiology , biology , fish <actinopterygii> , noise induced hearing loss , sucker , absolute threshold of hearing , noise exposure , hearing loss , fishery , zoology , medicine , computer science , artificial intelligence , image (mathematics)
Summary The study objective was to explore the effects of noise generated by a 2000 hp containership on the reaction of C hinese sucker M yxocyprinus asiaticus . The noise was played back for various durations (1, 2, 4, 8, 24 h) at 142.8 dB re 1 μPa. Immediately after the noise exposure, hearing abilities of the fish were tested using the auditory evoked potential ( AEP ) protocol and compared with the response to a control group with no noise exposure. After 1 h noise exposure no significant differences were found compared to control fish; however, significant auditory threshold shifts began to occur at 800 Hz after 2 h of noise exposure. After 24 h of noise exposure, significant auditory threshold shifts were found at all tested frequencies (100–3000 Hz) when compared to control fish. Recoveries were also measured until the auditory thresholds returned to the hearing levels of the control fish. Auditory thresholds of all C hinese suckers fully returned to control levels within 96 h of recovery time. The results indicate that ship noise exposure can lead to threshold shifts in C hinese sucker and that these threshold shifts are temporary, referred to as temporary threshold shift ( TTS ).