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MARINE MAMMAL NOISE-EXPOSURE CRITERIA: INITIAL SCIENTIFIC RECOMMENDATIONS
1 National Oceanic and Atmospheric Administration (NOAA), National Marine Fisheries Service, Office of Science and Technology, Marine Ecosystems Division, Ocean Acoustics Program, 1315 East-West…
Marine mammal noise exposure criteria: Initial scientific recommendations.
An expert panel reviewed the expanding literature on marine mammal (cetacean and pinniped) auditory and behavioral responses to sound exposure to develop comprehensive, scientifically based noise…
The influence of cochlear shape on low-frequency hearing
- D. Manoussaki, R. Chadwick, D. Ketten, J. Arruda, E. Dimitriadis, J. O'malley
- PhysicsProceedings of the National Academy of Sciences
- 22 April 2008
A multispecies analysis of cochlear shape is provided to test a theory that the spiral's graded curvature enhances the cochlea's mechanical response to low frequencies and demonstrates that the ratio of the radii of curvature from the outermost and innermost turns of the Cochlear spiral is a significant cochLear feature that correlates strongly with low-frequency hearing limits.
Marine Mammal Noise Exposure Criteria: Updated Scientific Recommendations for Residual Hearing Effects
sources, exposure criteria are given in frequencyweighted sound exposure level (SEL, given in This article evaluates Southall et al. (2007) in light units relative to 1 μPa-s or (20 μPa)-s for water…
In vivo measures of cochlear length and insertion depth of nucleus cochlear implant electrode arrays.
- D. Ketten, M. Skinner, G. Wang, M. Vannier, G. Gates, J. Neely
- MedicineThe Annals of otology, rhinology & laryngology…
- 1 November 1998
The results show that significant variations in cochlear anatomy and array distribution among implant patients that may impact implant performance can be reliably detected and quantified by using in vivo high-resolution CT and 3-D reconstructions.
Three-Dimensional Reconstructions of the Dolphin EAR
From these investigations, the authors have gained considerable information about the psycho-acoustics of dolphin echolocation, but they still know little about the receptor anatomy.
The chemistry, biology, and vertical flux of particulate matter from the upper 400 m of the equatorial Atlantic Ocean
The Marine Mammal Ear: Specializations for Aquatic Audition and Echolocation
- D. Ketten
- Environmental Science
“Marine mammal” is a broad categorization for over 150 species that have one feature in common: the ability to function effectively in an aquatic environment. They have no single common aquatic…
Sound detection by the longfin squid (Loligo pealeii) studied with auditory evoked potentials: sensitivity to low-frequency particle motion and not pressure
- T. A. Mooney, R. Hanlon, J. Christensen-Dalsgaard, P. Madsen, D. Ketten, P. Nachtigall
- PhysicsJournal of Experimental Biology
- 1 November 2010
Both the AEP response characteristics and the range of responses suggest that squid detect sound similarly to most fish, with the statocyst acting as an accelerometer through which squid detect the particle motion component of a sound field.