| Underwater hearing sensitivity of harbor seals (Phoca vitulina) for narrow noise bands between 0.2 and 80 kHz. | |
| | |
MedLine Citation:
|
PMID: 19603905 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The underwater hearing sensitivities of two 1.5-year-old female harbor seals were quantified in a quiet pool built specifically for acoustic research, by using a behavioral psychoacoustic technique. The animals were trained to respond when they detected an acoustic signal and not to respond when they did not ("go/no-go" response). Fourteen narrowband noise signals (1/3-octave bands but with some energy in adjacent bands), at 1/3-octave center frequencies of 0.2-80 kHz, and of 900 ms duration, were tested. Thresholds at each frequency were measured using the up-down staircase method and defined as the stimulus level resulting in a 50% detection rate. Between 0.5 and 40 kHz, the thresholds corresponded to a 1/3-octave band noise level of approximately 60 dB re 1 microPa (SD+/-3.0 dB). At lower frequencies, the thresholds increased to 66 dB re 1 microPa and at 80 kHz the thresholds rose to 114 dB re 1 microPa. The 1/3-octave noise band thresholds of the two seals did not differ from each other, or from the narrowband frequency-modulated tone thresholds at the same frequencies obtained a few months before for the same animals. These hearing threshold values can be used to calculate detection ranges of underwater calls and anthropogenic noises by harbor seals. |
| | |
Authors:
|
Ronald A Kastelein; Paul Wensveen; Lean Hoek; John M Terhune |
Related Documents
:
|
16797895 - The effect of center frequency and bandwidth on the auditory evoked magnetic field. 21418065 - Intra-leaf gradients of photoinhibition induced by different color lights: implications... 21073935 - The effects of experimentally induced conductive hearing loss on spectral and temporal ... 18939835 - Wavelength redistribution and color purification action of a photonic crystal. 17196855 - Circadian rhythmicity during prolonged chemostat cultivation of neurospora crassa. 15109165 - Orientation-selective adaptation during motion-induced blindness. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: The Journal of the Acoustical Society of America Volume: 126 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2009 Jul |
Date Detail:
|
Created Date: 2009-07-16 Completed Date: 2009-09-28 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
|
Languages: eng Pagination: 476-83 Citation Subset: IM |
Affiliation:
|
Sea Mammal Research Company (SEAMARCO), Harderwijk, The Netherlands. researchteam@zonnet.nl |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Acoustic Stimulation Animals Auditory Threshold* Female Hearing* Neuropsychological Tests Phoca* Psychoacoustics Water* |
| Chemical | |
Reg. No./Substance:
|
7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers.
Next Document: Auditory evoked potentials in a stranded Gervais' beaked whale (Mesoplodon europaeus).