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September 10, 2025The Journal of the Acoustical Society of America

Low-frequency hearing and masking parameters in representative seals and sea lions

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Authors

JSJillian M. SillsBRBrandi RuscherNPNathan J. Packard

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Overview

Behavioral methods reveal auditory sensitivity in marine mammals, highlighting potential noise masking effects.

Key Points

  • Seals and sea lions detected sounds at frequencies as low as 40 Hz, showing sensitivity to low-frequency sounds.
  • The study found that seals were more sensitive with thresholds up to 24 dB lower around 40 Hz compared to 100 Hz.
  • Behavioral methods examined low-frequency hearing in bearded seals and California sea lions, analyzing noise impact.
  • These findings may indicate vulnerability of marine mammals to anthropogenic noise effects in low-frequency ranges.

Cite This Study

Sills et al. (2025) studied this question.

synapsesocial.com/papers/68c1d7ee54b1d3bfb60f9f67https://doi.org/10.1121/10.0039049
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Critical bandwidth measurements in pinnipeds2026
  2. 2Sensitivity to airborne sounds in ice-dependent bearded seals2025
  3. 3Underwater audiogram of the grey seal (Halichoerus grypus).2025
  4. 4Hearing in the Australian sea lion ( <i>Neophoca cinerea</i> ): First audiogram predictions from CT-based finite element analysis2025
  5. 5Temporary Hearing Threshold Shift in California Sea Lions (Zalophus californianus) Due to a Noise Band Centered at 32 kHz2024 · 1 citations