ArticleScientific reports2021
Multiple pygmy blue whale acoustic populations in the Indian Ocean: whale song identifies a possible new population.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Automated detection of stereotyped animal sounds using data augmentation and transfer learning.Scientific reports · 2026Article
- Modelling the influence of environmental factors on the acoustic presence of blue whale populations in the southern Indian Ocean.Scientific reports · 2025Article
- Ocean-Wide Conservation Genomics of Blue Whales Suggest New Northern Hemisphere Subspecies.Molecular ecology · 2025Article
- Distribution and Seasonality of the Omura's Whale (Animals : an open access journal from MDPI · 2024Article
- Diverse baleen whale acoustic occurrence around two sub-Antarctic islands: A tale of residents and visitors.Scientific reports · 2024Article
- BASSA: New software tool reveals hidden details in visualisation of low-frequency animal sounds.Ecology and evolution · 2024Article
- Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales.Genes · 2023Article
- Environmental conditions and marine heatwaves influence blue whale foraging and reproductive effort.Ecology and evolution · 2023Article
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Authors and funding
5 authors.
Funding
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Abstract
Blue whales were brought to the edge of extinction by commercial whaling in the twentieth century and their recovery rate in the Southern Hemisphere has been slow; they remain endangered. Blue whales, although the largest animals on Earth, are difficult to study in the Southern Hemisphere, thus their population structure, distribution and migration remain poorly known. Fortunately, blue whales produce powerful and stereotyped songs, which prove an effective clue for monitoring their different 'acoustic populations.' The DGD-Chagos song has been previously reported in the central Indian Ocean. A comparison of this song with the pygmy blue and Omura's whale songs shows that the Chagos song are likely produced by a distinct previously unknown pygmy blue whale population. These songs are a large part of the underwater soundscape in the tropical Indian Ocean and have been so for nearly two decades. Seasonal differences in song detections among our six recording sites suggest that the Chagos whales migrate from the eastern to western central Indian Ocean, around the Chagos Archipelago, then further east, up to the north of Western Australia, and possibly further north, as far as Sri Lanka. The Indian Ocean holds a greater diversity of blue whale populations than thought previously.
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