A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific
The identity, distribution and movements of blue whales Balaenoptera musculus that forage in the Chiloense Ecoregion in Southern Chile remain unclear. Studies of blue whale songs have identified acoustic populations with distinct song types, geographic ranges, migration routes and seasonal residenci...
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ftdoajarticles:oai:doaj.org/article:0e9d27d914784853b9222ab972b783ce 2023-05-15T13:49:38+02:00 A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific SJ Buchan R Hucke-Gaete L Rendell KM Stafford 2014-03-01T00:00:00Z https://doi.org/10.3354/esr00566 https://doaj.org/article/0e9d27d914784853b9222ab972b783ce EN eng Inter-Research https://www.int-res.com/abstracts/esr/v23/n3/p241-252/ https://doaj.org/toc/1863-5407 https://doaj.org/toc/1613-4796 1863-5407 1613-4796 doi:10.3354/esr00566 https://doaj.org/article/0e9d27d914784853b9222ab972b783ce Endangered Species Research, Vol 23, Iss 3, Pp 241-252 (2014) Zoology QL1-991 Botany QK1-989 article 2014 ftdoajarticles https://doi.org/10.3354/esr00566 2022-12-31T16:27:47Z The identity, distribution and movements of blue whales Balaenoptera musculus that forage in the Chiloense Ecoregion in Southern Chile remain unclear. Studies of blue whale songs have identified acoustic populations with distinct song types, geographic ranges, migration routes and seasonal residencies—information that is relevant to the conservation of this endangered species. Here, we characterized the song sequences of blue whales that use the Corcovado Gulf based on dipping hydrophone recordings from 3 austral summer field seasons (2008, 2009, 2011), and compare these data to previously described song types for the Southeast Pacific (SEP) in order to better understand meso-scale (versus basin-scale) variation in blue whale song. Two distinct songs, SEP1 and SEP2, emerged from our analysis. Neither of these songs is used by Antarctic blue whales. Although SEP1 was the first song recorded in the Corcovado Gulf area in 1970, we found SEP2 to be the more common song, despite never having been reported previously in this area. Our report of SEP2 adds a new song to the current description of the SEP blue whale repertoire. Our recording of SEP1 reaffirms the acoustic link already established between Chile and the Eastern Tropical Pacific (ETP); our recording of SEP2 establishes a new acoustic link for this song between Chile and the ETP. These findings provide the basis for future passive acoustic studies on the temporal and spatial distributions of endangered SEP blue whales and for understanding how these songs relate to the population structure. Article in Journal/Newspaper Antarc* Antarctic Balaenoptera musculus Blue whale Directory of Open Access Journals: DOAJ Articles Antarctic Austral Pacific Endangered Species Research 23 3 241 252 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Zoology QL1-991 Botany QK1-989 |
spellingShingle |
Zoology QL1-991 Botany QK1-989 SJ Buchan R Hucke-Gaete L Rendell KM Stafford A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific |
topic_facet |
Zoology QL1-991 Botany QK1-989 |
description |
The identity, distribution and movements of blue whales Balaenoptera musculus that forage in the Chiloense Ecoregion in Southern Chile remain unclear. Studies of blue whale songs have identified acoustic populations with distinct song types, geographic ranges, migration routes and seasonal residencies—information that is relevant to the conservation of this endangered species. Here, we characterized the song sequences of blue whales that use the Corcovado Gulf based on dipping hydrophone recordings from 3 austral summer field seasons (2008, 2009, 2011), and compare these data to previously described song types for the Southeast Pacific (SEP) in order to better understand meso-scale (versus basin-scale) variation in blue whale song. Two distinct songs, SEP1 and SEP2, emerged from our analysis. Neither of these songs is used by Antarctic blue whales. Although SEP1 was the first song recorded in the Corcovado Gulf area in 1970, we found SEP2 to be the more common song, despite never having been reported previously in this area. Our report of SEP2 adds a new song to the current description of the SEP blue whale repertoire. Our recording of SEP1 reaffirms the acoustic link already established between Chile and the Eastern Tropical Pacific (ETP); our recording of SEP2 establishes a new acoustic link for this song between Chile and the ETP. These findings provide the basis for future passive acoustic studies on the temporal and spatial distributions of endangered SEP blue whales and for understanding how these songs relate to the population structure. |
format |
Article in Journal/Newspaper |
author |
SJ Buchan R Hucke-Gaete L Rendell KM Stafford |
author_facet |
SJ Buchan R Hucke-Gaete L Rendell KM Stafford |
author_sort |
SJ Buchan |
title |
A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific |
title_short |
A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific |
title_full |
A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific |
title_fullStr |
A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific |
title_full_unstemmed |
A new song recorded from blue whales in the Corcovado Gulf, Southern Chile, and an acoustic link to the Eastern Tropical Pacific |
title_sort |
new song recorded from blue whales in the corcovado gulf, southern chile, and an acoustic link to the eastern tropical pacific |
publisher |
Inter-Research |
publishDate |
2014 |
url |
https://doi.org/10.3354/esr00566 https://doaj.org/article/0e9d27d914784853b9222ab972b783ce |
geographic |
Antarctic Austral Pacific |
geographic_facet |
Antarctic Austral Pacific |
genre |
Antarc* Antarctic Balaenoptera musculus Blue whale |
genre_facet |
Antarc* Antarctic Balaenoptera musculus Blue whale |
op_source |
Endangered Species Research, Vol 23, Iss 3, Pp 241-252 (2014) |
op_relation |
https://www.int-res.com/abstracts/esr/v23/n3/p241-252/ https://doaj.org/toc/1863-5407 https://doaj.org/toc/1613-4796 1863-5407 1613-4796 doi:10.3354/esr00566 https://doaj.org/article/0e9d27d914784853b9222ab972b783ce |
op_doi |
https://doi.org/10.3354/esr00566 |
container_title |
Endangered Species Research |
container_volume |
23 |
container_issue |
3 |
container_start_page |
241 |
op_container_end_page |
252 |
_version_ |
1766251897027559424 |