PALAOA: Ross seal presence and calling patterns
The autonomous perennial acoustic observatory in the Antarctic Ocean (PALAOA) constitutes a powerful tool to monitor the acoustic presence of marine mammals at a pristine location in the Southern Ocean. For a limited period of time, these recordings are dominated by vocalizations of the Ross seal (O...
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ftawi:oai:epic.awi.de:18586 2024-09-15T17:45:57+00:00 PALAOA: Ross seal presence and calling patterns Seibert, Anna-Maria Kindermann, Lars Klinck, Holger Boebel, Olaf 2008 https://epic.awi.de/id/eprint/18586/ https://hdl.handle.net/10013/epic.38230 unknown Seibert, A. M. , Kindermann, L. , Klinck, H. and Boebel, O. orcid:0000-0002-2259-0035 (2008) PALAOA: Ross seal presence and calling patterns , 22nd Conference of the European Cetacean Society, 12 March 15 March 2008, Egmond aan Zee, The Netherlands. . hdl:10013/epic.38230 EPIC322nd Conference of the European Cetacean Society, 12 March 15 March 2008, Egmond aan Zee, The Netherlands. Conference notRev 2008 ftawi 2024-06-24T04:00:42Z The autonomous perennial acoustic observatory in the Antarctic Ocean (PALAOA) constitutes a powerful tool to monitor the acoustic presence of marine mammals at a pristine location in the Southern Ocean. For a limited period of time, these recordings are dominated by vocalizations of the Ross seal (Ommatophoca rossii) a species considered to be the rarest and the least known of all Antarctic seals. PALAOAs acoustic data provides new information on the presence of Ross seals at the location of Atka Bay. Ross seal calls are shown to comprise of four distinct call types, which are explicitly described for the first time. Their seasonal as well as their diurnal calling patterns are presented and placed into a behavioural context. The number of vocalizing seals is estimated by using time-delays between the two recorded channels of the hydrophone array. The results provide information required for the development of automated pattern recognition for acoustic censusing, particularly when faced with analysing the PALAOA multi-year recordings. Conference Object Antarc* Antarctic Antarctic Ocean Ross Seal Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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description |
The autonomous perennial acoustic observatory in the Antarctic Ocean (PALAOA) constitutes a powerful tool to monitor the acoustic presence of marine mammals at a pristine location in the Southern Ocean. For a limited period of time, these recordings are dominated by vocalizations of the Ross seal (Ommatophoca rossii) a species considered to be the rarest and the least known of all Antarctic seals. PALAOAs acoustic data provides new information on the presence of Ross seals at the location of Atka Bay. Ross seal calls are shown to comprise of four distinct call types, which are explicitly described for the first time. Their seasonal as well as their diurnal calling patterns are presented and placed into a behavioural context. The number of vocalizing seals is estimated by using time-delays between the two recorded channels of the hydrophone array. The results provide information required for the development of automated pattern recognition for acoustic censusing, particularly when faced with analysing the PALAOA multi-year recordings. |
format |
Conference Object |
author |
Seibert, Anna-Maria Kindermann, Lars Klinck, Holger Boebel, Olaf |
spellingShingle |
Seibert, Anna-Maria Kindermann, Lars Klinck, Holger Boebel, Olaf PALAOA: Ross seal presence and calling patterns |
author_facet |
Seibert, Anna-Maria Kindermann, Lars Klinck, Holger Boebel, Olaf |
author_sort |
Seibert, Anna-Maria |
title |
PALAOA: Ross seal presence and calling patterns |
title_short |
PALAOA: Ross seal presence and calling patterns |
title_full |
PALAOA: Ross seal presence and calling patterns |
title_fullStr |
PALAOA: Ross seal presence and calling patterns |
title_full_unstemmed |
PALAOA: Ross seal presence and calling patterns |
title_sort |
palaoa: ross seal presence and calling patterns |
publishDate |
2008 |
url |
https://epic.awi.de/id/eprint/18586/ https://hdl.handle.net/10013/epic.38230 |
genre |
Antarc* Antarctic Antarctic Ocean Ross Seal Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean Ross Seal Southern Ocean |
op_source |
EPIC322nd Conference of the European Cetacean Society, 12 March 15 March 2008, Egmond aan Zee, The Netherlands. |
op_relation |
Seibert, A. M. , Kindermann, L. , Klinck, H. and Boebel, O. orcid:0000-0002-2259-0035 (2008) PALAOA: Ross seal presence and calling patterns , 22nd Conference of the European Cetacean Society, 12 March 15 March 2008, Egmond aan Zee, The Netherlands. . hdl:10013/epic.38230 |
_version_ |
1810493882686767104 |