Audio1_Vocal Behavior in Spotted Seals (Phoca largha) and Implications for Passive Acoustic Monitoring.WAV
Passive acoustic methods enable remote monitoring of marine species and habitats. These methods can be applied to investigate distribution and abundance of populations, to evaluate behavioral and physiological states of individuals, and to inform management efforts for animals that live in hard-to-r...
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ftfrontimediafig:oai:figshare.com:article/19818172 2023-05-15T14:56:53+02:00 Audio1_Vocal Behavior in Spotted Seals (Phoca largha) and Implications for Passive Acoustic Monitoring.WAV Jillian M. Sills Colleen Reichmuth 2022-05-23T04:16:48Z https://doi.org/10.3389/frsen.2022.862435.s001 https://figshare.com/articles/media/Audio1_Vocal_Behavior_in_Spotted_Seals_Phoca_largha_and_Implications_for_Passive_Acoustic_Monitoring_WAV/19818172 unknown doi:10.3389/frsen.2022.862435.s001 https://figshare.com/articles/media/Audio1_Vocal_Behavior_in_Spotted_Seals_Phoca_largha_and_Implications_for_Passive_Acoustic_Monitoring_WAV/19818172 CC BY 4.0 CC-BY Physical Geography and Environmental Geoscience not elsewhere classified Earth Sciences not elsewhere classified Photogrammetry and Remote Sensing vocalization passive acoustic monitoring call repertoire acoustic ontogeny phocid arctic Dataset Media 2022 ftfrontimediafig https://doi.org/10.3389/frsen.2022.862435.s001 2022-05-25T23:06:20Z Passive acoustic methods enable remote monitoring of marine species and habitats. These methods can be applied to investigate distribution and abundance of populations, to evaluate behavioral and physiological states of individuals, and to inform management efforts for animals that live in hard-to-reach places. Spotted seals (Phoca largha) inhabit high-latitude, light-limited sub-Arctic and Arctic waters and move seasonally with unstable sea ice. They are high trophic level predators vulnerable to changing conditions associated with environmental warming. At present, an incomplete characterization of the spotted seal vocal repertoire limits our ability to monitor this species acoustically. Captive studies can inform passive acoustic efforts by describing fundamental features of species-typical vocalizations emitted by known individuals. These features include acoustic parameters as well as developmental, seasonal, and sex-specific patterns in vocal behavior. Here, we studied several male spotted seals in captivity from age 6 months through adulthood (10 years). Vocal behavior was scored daily and opportunistically recorded. The production of underwater calls emerged during sexual maturation, at age 4. To evaluate vocal repertoire and fine-scale temporal patterns of sound production in adult seals, an underwater acoustic recorder was continuously deployed with two seals at age 7 years. The spotted seals produced at least eight distinctive underwater call types with dominant energy below 1 kHz. The amplitude of the most common vocalization was ∼140 dB re 1 μPa (sound pressure level at 1 m). There was a marked peak in vocal activity in springtime, prior to onset of the annual molt. This period coincided with increased aggressive behavior, presence of a notable musky odor, and urogenital swelling indicative of heightened reproductive status. These results from developing male spotted seals reared in human care confirm the production of recognizable, stereotypic underwater calls associated with the breeding season. ... Dataset Arctic Sea ice Frontiers: Figshare Arctic |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Physical Geography and Environmental Geoscience not elsewhere classified Earth Sciences not elsewhere classified Photogrammetry and Remote Sensing vocalization passive acoustic monitoring call repertoire acoustic ontogeny phocid arctic |
spellingShingle |
Physical Geography and Environmental Geoscience not elsewhere classified Earth Sciences not elsewhere classified Photogrammetry and Remote Sensing vocalization passive acoustic monitoring call repertoire acoustic ontogeny phocid arctic Jillian M. Sills Colleen Reichmuth Audio1_Vocal Behavior in Spotted Seals (Phoca largha) and Implications for Passive Acoustic Monitoring.WAV |
topic_facet |
Physical Geography and Environmental Geoscience not elsewhere classified Earth Sciences not elsewhere classified Photogrammetry and Remote Sensing vocalization passive acoustic monitoring call repertoire acoustic ontogeny phocid arctic |
description |
Passive acoustic methods enable remote monitoring of marine species and habitats. These methods can be applied to investigate distribution and abundance of populations, to evaluate behavioral and physiological states of individuals, and to inform management efforts for animals that live in hard-to-reach places. Spotted seals (Phoca largha) inhabit high-latitude, light-limited sub-Arctic and Arctic waters and move seasonally with unstable sea ice. They are high trophic level predators vulnerable to changing conditions associated with environmental warming. At present, an incomplete characterization of the spotted seal vocal repertoire limits our ability to monitor this species acoustically. Captive studies can inform passive acoustic efforts by describing fundamental features of species-typical vocalizations emitted by known individuals. These features include acoustic parameters as well as developmental, seasonal, and sex-specific patterns in vocal behavior. Here, we studied several male spotted seals in captivity from age 6 months through adulthood (10 years). Vocal behavior was scored daily and opportunistically recorded. The production of underwater calls emerged during sexual maturation, at age 4. To evaluate vocal repertoire and fine-scale temporal patterns of sound production in adult seals, an underwater acoustic recorder was continuously deployed with two seals at age 7 years. The spotted seals produced at least eight distinctive underwater call types with dominant energy below 1 kHz. The amplitude of the most common vocalization was ∼140 dB re 1 μPa (sound pressure level at 1 m). There was a marked peak in vocal activity in springtime, prior to onset of the annual molt. This period coincided with increased aggressive behavior, presence of a notable musky odor, and urogenital swelling indicative of heightened reproductive status. These results from developing male spotted seals reared in human care confirm the production of recognizable, stereotypic underwater calls associated with the breeding season. ... |
format |
Dataset |
author |
Jillian M. Sills Colleen Reichmuth |
author_facet |
Jillian M. Sills Colleen Reichmuth |
author_sort |
Jillian M. Sills |
title |
Audio1_Vocal Behavior in Spotted Seals (Phoca largha) and Implications for Passive Acoustic Monitoring.WAV |
title_short |
Audio1_Vocal Behavior in Spotted Seals (Phoca largha) and Implications for Passive Acoustic Monitoring.WAV |
title_full |
Audio1_Vocal Behavior in Spotted Seals (Phoca largha) and Implications for Passive Acoustic Monitoring.WAV |
title_fullStr |
Audio1_Vocal Behavior in Spotted Seals (Phoca largha) and Implications for Passive Acoustic Monitoring.WAV |
title_full_unstemmed |
Audio1_Vocal Behavior in Spotted Seals (Phoca largha) and Implications for Passive Acoustic Monitoring.WAV |
title_sort |
audio1_vocal behavior in spotted seals (phoca largha) and implications for passive acoustic monitoring.wav |
publishDate |
2022 |
url |
https://doi.org/10.3389/frsen.2022.862435.s001 https://figshare.com/articles/media/Audio1_Vocal_Behavior_in_Spotted_Seals_Phoca_largha_and_Implications_for_Passive_Acoustic_Monitoring_WAV/19818172 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
doi:10.3389/frsen.2022.862435.s001 https://figshare.com/articles/media/Audio1_Vocal_Behavior_in_Spotted_Seals_Phoca_largha_and_Implications_for_Passive_Acoustic_Monitoring_WAV/19818172 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/frsen.2022.862435.s001 |
_version_ |
1766328936462024704 |