"spot" call: A common sound from an unidentified great whale in Australian temperate waters
Underwater passive acoustic recordings in the Southern and Indian Oceans off Australia from 2002 to 2016 have regularly captured a tonal signal of about 10 s duration at 22-28 Hz with a symmetrical bell-shaped envelope. The sound is often accompanied by short, higher frequency downsweeps and repeate...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Acoustical Society of America
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/56882 |
| _version_ | 1848759960716967936 |
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| author | Ward, R. Gavrilov, Alexander McCauley, Robert |
| author_facet | Ward, R. Gavrilov, Alexander McCauley, Robert |
| author_sort | Ward, R. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Underwater passive acoustic recordings in the Southern and Indian Oceans off Australia from 2002 to 2016 have regularly captured a tonal signal of about 10 s duration at 22-28 Hz with a symmetrical bell-shaped envelope. The sound is often accompanied by short, higher frequency downsweeps and repeated at irregular intervals varying from 120 to 200 s. It is termed the "spot" call according to its appearance in spectrograms of long-time averaging. Although similar to the first part of an Antarctic blue whale Z-call, evidence suggests the call is produced by another great whale, with the source as yet not identified. |
| first_indexed | 2025-11-14T10:08:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-56882 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:08:11Z |
| publishDate | 2017 |
| publisher | Acoustical Society of America |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-568822018-02-28T05:34:38Z "spot" call: A common sound from an unidentified great whale in Australian temperate waters Ward, R. Gavrilov, Alexander McCauley, Robert Underwater passive acoustic recordings in the Southern and Indian Oceans off Australia from 2002 to 2016 have regularly captured a tonal signal of about 10 s duration at 22-28 Hz with a symmetrical bell-shaped envelope. The sound is often accompanied by short, higher frequency downsweeps and repeated at irregular intervals varying from 120 to 200 s. It is termed the "spot" call according to its appearance in spectrograms of long-time averaging. Although similar to the first part of an Antarctic blue whale Z-call, evidence suggests the call is produced by another great whale, with the source as yet not identified. 2017 Journal Article http://hdl.handle.net/20.500.11937/56882 10.1121/1.4998608 Acoustical Society of America fulltext |
| spellingShingle | Ward, R. Gavrilov, Alexander McCauley, Robert "spot" call: A common sound from an unidentified great whale in Australian temperate waters |
| title | "spot" call: A common sound from an unidentified great whale in Australian temperate waters |
| title_full | "spot" call: A common sound from an unidentified great whale in Australian temperate waters |
| title_fullStr | "spot" call: A common sound from an unidentified great whale in Australian temperate waters |
| title_full_unstemmed | "spot" call: A common sound from an unidentified great whale in Australian temperate waters |
| title_short | "spot" call: A common sound from an unidentified great whale in Australian temperate waters |
| title_sort | "spot" call: a common sound from an unidentified great whale in australian temperate waters |
| url | http://hdl.handle.net/20.500.11937/56882 |