Underwater hearing sensitivity of two ringed seals (Pusa hispida)

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 1975 English Publisher:Canadian Science PublishingJournal:Canadian Journal of Zoology, volume 53, pages 227-231 (issn: 0008-4301, eissn: 1480-3283,

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Authors: J M, Terhune; K, Ronald;

doi: 10.1139/z75-028

pmid: 1125867

Underwater hearing sensitivity of two ringed seals (Pusa hispida)

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Abstract

Minimum audible field, underwater audiograms from 1 to 90 kHz were obtained for two ringed seals (Pusa hispida). The audiograms exhibited a uniform sensitivity, to within ± 7 dB, in the frequency range 1 to 45 kHz. Above 45 kHz the threshold increased at a rate of 60 dB per octave. The lowest threshold was −32 dB relative to 1 μbar (68 dB re 1 μPa) at 16 kHz. The audiograms were similar to those of other phocid seals so far studied.

Keywords

Male, Hearing, Seals, Earless, Animals, Water, Female, Caniformia

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