Bioacoustics of Monterey Bay Pinnipeds: Auditory Fatigue and Masking.
Auditory thresholds were obtained for one northern elephant seal (Mirounga angustirostris), one harbor seal (Phoca vitulina) and two California sea lions (Zalophus californianus) under unmasked conditions, masked conditions, and following exposure to noise. Thresholds were determined using a 50% cor...
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ftdtic:ADA362641 2023-05-15T16:05:12+02:00 Bioacoustics of Monterey Bay Pinnipeds: Auditory Fatigue and Masking. Schusterman, Ronald J. CALIFORNIA UNIV SANTA CRUZ LONG MARINE LAB 1998-09-30 text/html http://www.dtic.mil/docs/citations/ADA362641 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA362641 en eng http://www.dtic.mil/docs/citations/ADA362641 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Biology Acoustics *ANIMALS *UNDERWATER SOUND *BIOACOUSTICS *SEALS(MAMMALS) *AUDITORY DEFECTS DETECTION AIRBORNE SENSITIVITY SHORT RANGE(TIME) RESIDUALS FATIGUE CALIFORNIA RESPONSE(BIOLOGY) LOW FREQUENCY HARBORS HEARING AUDIO TONES BAYS ELEPHANT SEAL MIROUNGA ANGUSTIROSTRIS ONE HARBOR SEAL PHOCA VITULINA CALIFORNIA SEA LIONS.ZALOPHUS CALIFORNIANUS Text 1998 ftdtic 2016-02-20T01:49:34Z Auditory thresholds were obtained for one northern elephant seal (Mirounga angustirostris), one harbor seal (Phoca vitulina) and two California sea lions (Zalophus californianus) under unmasked conditions, masked conditions, and following exposure to noise. Thresholds were determined using a 50% correct detection criterion in a signal detection task using trained behavioral responses to brief pure tones. Results indicate that 1) Mirounga is most sensitive to low frequency sounds in water and is relatively hard of hearing in air; 2) Phoca has comparable auditory sensitivity to sounds of low frequency in air and under water; 3) Zalophus is more sensitive to aerial sounds than underwater sounds; 4) Zalophus is susceptible to age related hearing loss, especially at higher frequencies; 5) all three species, and Mirounga in particular, are quite good at detecting low frequency signals from noise; and 6) moderately loud underwater sounds have the potential to induce short-term residual hearing loss in all species tested. Text Elephant Seal harbor seal Phoca vitulina Defense Technical Information Center: DTIC Technical Reports database |
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Defense Technical Information Center: DTIC Technical Reports database |
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English |
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Biology Acoustics *ANIMALS *UNDERWATER SOUND *BIOACOUSTICS *SEALS(MAMMALS) *AUDITORY DEFECTS DETECTION AIRBORNE SENSITIVITY SHORT RANGE(TIME) RESIDUALS FATIGUE CALIFORNIA RESPONSE(BIOLOGY) LOW FREQUENCY HARBORS HEARING AUDIO TONES BAYS ELEPHANT SEAL MIROUNGA ANGUSTIROSTRIS ONE HARBOR SEAL PHOCA VITULINA CALIFORNIA SEA LIONS.ZALOPHUS CALIFORNIANUS |
spellingShingle |
Biology Acoustics *ANIMALS *UNDERWATER SOUND *BIOACOUSTICS *SEALS(MAMMALS) *AUDITORY DEFECTS DETECTION AIRBORNE SENSITIVITY SHORT RANGE(TIME) RESIDUALS FATIGUE CALIFORNIA RESPONSE(BIOLOGY) LOW FREQUENCY HARBORS HEARING AUDIO TONES BAYS ELEPHANT SEAL MIROUNGA ANGUSTIROSTRIS ONE HARBOR SEAL PHOCA VITULINA CALIFORNIA SEA LIONS.ZALOPHUS CALIFORNIANUS Schusterman, Ronald J. Bioacoustics of Monterey Bay Pinnipeds: Auditory Fatigue and Masking. |
topic_facet |
Biology Acoustics *ANIMALS *UNDERWATER SOUND *BIOACOUSTICS *SEALS(MAMMALS) *AUDITORY DEFECTS DETECTION AIRBORNE SENSITIVITY SHORT RANGE(TIME) RESIDUALS FATIGUE CALIFORNIA RESPONSE(BIOLOGY) LOW FREQUENCY HARBORS HEARING AUDIO TONES BAYS ELEPHANT SEAL MIROUNGA ANGUSTIROSTRIS ONE HARBOR SEAL PHOCA VITULINA CALIFORNIA SEA LIONS.ZALOPHUS CALIFORNIANUS |
description |
Auditory thresholds were obtained for one northern elephant seal (Mirounga angustirostris), one harbor seal (Phoca vitulina) and two California sea lions (Zalophus californianus) under unmasked conditions, masked conditions, and following exposure to noise. Thresholds were determined using a 50% correct detection criterion in a signal detection task using trained behavioral responses to brief pure tones. Results indicate that 1) Mirounga is most sensitive to low frequency sounds in water and is relatively hard of hearing in air; 2) Phoca has comparable auditory sensitivity to sounds of low frequency in air and under water; 3) Zalophus is more sensitive to aerial sounds than underwater sounds; 4) Zalophus is susceptible to age related hearing loss, especially at higher frequencies; 5) all three species, and Mirounga in particular, are quite good at detecting low frequency signals from noise; and 6) moderately loud underwater sounds have the potential to induce short-term residual hearing loss in all species tested. |
author2 |
CALIFORNIA UNIV SANTA CRUZ LONG MARINE LAB |
format |
Text |
author |
Schusterman, Ronald J. |
author_facet |
Schusterman, Ronald J. |
author_sort |
Schusterman, Ronald J. |
title |
Bioacoustics of Monterey Bay Pinnipeds: Auditory Fatigue and Masking. |
title_short |
Bioacoustics of Monterey Bay Pinnipeds: Auditory Fatigue and Masking. |
title_full |
Bioacoustics of Monterey Bay Pinnipeds: Auditory Fatigue and Masking. |
title_fullStr |
Bioacoustics of Monterey Bay Pinnipeds: Auditory Fatigue and Masking. |
title_full_unstemmed |
Bioacoustics of Monterey Bay Pinnipeds: Auditory Fatigue and Masking. |
title_sort |
bioacoustics of monterey bay pinnipeds: auditory fatigue and masking. |
publishDate |
1998 |
url |
http://www.dtic.mil/docs/citations/ADA362641 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA362641 |
genre |
Elephant Seal harbor seal Phoca vitulina |
genre_facet |
Elephant Seal harbor seal Phoca vitulina |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA362641 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766401089632993280 |