title: Source levels and call parameters of harbor seal breeding vocalizations near a terrestrial haulout site in Glacier Bay National Park and Preserve.
abstract: Source levels of harbor seal breeding vocalizations were estimated using a three-element planar hydrophone array near the Beardslee Islands in Glacier Bay National Park and Preserve, Alaska. The average source level for these calls was 144 dBRMSre 1 μPa at 1 m in the 40-500 Hz frequency band. Source level estimates ranged from 129 to 149 dBRMSre 1 μPa. Four call parameters, including minimum frequency, peak frequency, total duration, and pulse duration, were also measured. These measurements indicated that breeding vocalizations of harbor seals near the Beardslee Islands of Glacier Bay National Park are similar in duration (average total duration: 4.8 s, average pulse duration: 3.0 s) to previously reported values from other populations, but are 170-220 Hz lower in average minimum frequency (78 Hz).
authors.affiliation: Biology Department, Syracuse University, Syracuse, New York 13244, USA lematthe@syr.edu, sparks@syr.edu.
authors.forename: Leanna P
authors.initials: LP
authors.lastname: Matthews
authors.affiliation: Biology Department, Syracuse University, Syracuse, New York 13244, USA lematthe@syr.edu, sparks@syr.edu.
authors.forename: Susan E
authors.initials: SE
authors.lastname: Parks
authors.affiliation: Department of Fisheries and Wildlife, Oregon State University, Corvallis, Oregon 97331, USA michelle.fournet@gmail.com.
authors.forename: Michelle E H
authors.initials: ME
authors.lastname: Fournet
authors.affiliation: Humpback Whale Monitoring Program, Glacier Bay National Park and Preserve, Gustavus, Alaska 99826, USA chris_gabriele@nps.gov.
authors.forename: Christine M
authors.initials: CM
authors.lastname: Gabriele
authors.affiliation: Glacier Bay Field Station, National Park Service, Juneau, Alaska 99801, USA jamie_womble@nps.gov.
authors.forename: Jamie N
authors.initials: JN
authors.lastname: Womble
authors.affiliation: Bioacoustics Research Program, Cornell Lab of Ornithology, Cornell University, Ithaca, New York 14850, USA Holger.Klinck@cornell.edu.
authors.forename: Holger
authors.initials: H
authors.lastname: Klinck
mesh_terms: D000162:Acoustics / Q000295:instrumentation; D000413:Alaska; D000818:Animals; D001947:Breeding; D004867:Equipment Design; D046448:Ice Cover; D009038:Motion; D000068316:Parks, Recreational; D010363:Pattern Recognition, Automated; D046049:Phoca / Q000145:classification / Q000502:physiology* / Q000523:psychology; D012621:Seasons; D012726:Sexual Behavior, Animal; D012815:Signal Processing, Computer-Assisted; D059629:Signal-To-Noise Ratio; D013016:Sound; D013018:Sound Spectrography; D013045:Species Specificity; D013997:Time Factors; D014160:Transducers, Pressure; D014828:Vocalization, Animal; D014867:Water
chemical_list: D014867:Water