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Fin whale song characteristics and potential subpopulation identity in the New York Bight
King-Nolan, C.D.; Rekdahl, M.L.; Murray, A.; Strindberg, S.; Baumgartner, M.F.; Rosenbaum, H.C. (2024). Fin whale song characteristics and potential subpopulation identity in the New York Bight. NPG Scientific Reports 14(1): 2931. https://dx.doi.org/10.1038/s41598-024-52228-8
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
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| Trefwoorden |
Balaenoptera physalus (Linnaeus, 1758) [WoRMS]
Marien/Kust |
| Auteurs | | Top |
- King-Nolan, C.D.
- Rekdahl, M.L.
- Murray, A.
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- Strindberg, S.
- Baumgartner, M.F.
- Rosenbaum, H.C.
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| Abstract |
Fin whale (Balaenoptera physalus) song can follow a highly consistent pattern, and regional differences in song patterns can be a valuable indicator of subpopulation identity and distribution. In the Northwest Atlantic, endangered fin whales are currently managed as a single stock despite previous identification of different regional song patterns, which indicates potential subpopulation structuring and vulnerability to anthropogenic disturbance if not managed accordingly. Here we document fin whale song in the New York Bight (NYB) from 2017 to 2020 using passive acoustic data to identify monthly and yearly trends in song patterns and to explore potential subpopulation structuring. The predominant song pattern observed was highly consistent with the pattern documented almost a decade prior in the NYB, with short inter-note intervals (INI) from fall–winter and long-INIs in the spring. However, in one song year the majority of songs were composed of long-INIs. This change in song pattern could be due to a shift in fin whale behavior or possibly multiple fin whale subpopulations using the NYB. Fin whales in the NYB may be particularly vulnerable to disturbance given the increasing anthropogenic pressures in this region, and further research into subpopulation structuring is needed to ensure adequate management of these endangered whales. |
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