Document Detail

The inner ears of Northern Canadian freshwater fishes following exposure to seismic air gun sounds.
MedLine Citation:
PMID:  18681621     Owner:  NLM     Status:  MEDLINE    
An earlier study examined the effects of exposure to seismic air guns on the hearing of three species of fish from the Mackenzie River Delta in Northern Canada [Popper et al. (2005). "Effects of exposure to seismic airgun use on hearing of three fish species," J. Acoust. Soc. Am. 117, 3958-3971]. The sound pressure levels to which the fishes were exposed were a mean received level of 205-209 dB re 1 microPa (peak) per shot and an approximate received mean SEL of 176-180 dB re 1 microPa(2) s per shot. In this report, the same animals were examined to determine whether there were effects on the sensory cells of the inner ear as a result of the seismic exposure. No damage was found to the ears of the fishes exposed to seismic sounds despite the fact that two of the species, adult northern pike and lake chub, had shown a temporary threshold shift in hearing studies.
Jiakun Song; David A Mann; Peter A Cott; Bruce W Hanna; Arthur N Popper
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  124     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-08-06     Completed Date:  2008-10-23     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1360-6     Citation Subset:  IM    
Department of Biology, Neuroscience and Cognitive Science Program, Center for Comparative and Evolutionary Biology of Hearing, University of Maryland, College Park, Maryland 20742, USA.
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MeSH Terms
Auditory Threshold
Cyprinidae / anatomy & histology
Ear, Inner / physiology,  ultrastructure*
Esocidae / anatomy & histology
Fishes / anatomy & histology*,  physiology
Fresh Water
Hair Cells, Auditory / ultrastructure
Noise / adverse effects*
Northwest Territories
Salmonidae / anatomy & histology
Grant Support

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