Song recordings suggest feeding ground sharing in Southern Hemisphere humpback whales
The Atlantic sector of the Southern Ocean (ASSO) has one of the highest densities of Antarctic krill (Euphausia superba) compared to other polar and subpolar regions, which attracts migratory baleen whale species to aggregate in this area for feeding. Humpback whales (Megaptera novaeangliae) also si...
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ftpubmed:oai:pubmedcentral.nih.gov:9385655 2023-05-15T13:30:42+02:00 Song recordings suggest feeding ground sharing in Southern Hemisphere humpback whales Schall, Elena Djokic, Divna Ross-Marsh, Erin C. Oña, Javier Denkinger, Judith Ernesto Baumgarten, Julio Rodrigues Padovese, Linilson Rossi-Santos, Marcos R. Carvalho Gonçalves, Maria Isabel Sousa-Lima, Renata Hucke-Gaete, Rodrigo Elwen, Simon Buchan, Susannah Gridley, Tess Van Opzeeland, Ilse 2022-08-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9385655/ https://doi.org/10.1038/s41598-022-17999-y en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9385655/ http://dx.doi.org/10.1038/s41598-022-17999-y © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Sci Rep Article Text 2022 ftpubmed https://doi.org/10.1038/s41598-022-17999-y 2022-08-21T00:59:54Z The Atlantic sector of the Southern Ocean (ASSO) has one of the highest densities of Antarctic krill (Euphausia superba) compared to other polar and subpolar regions, which attracts migratory baleen whale species to aggregate in this area for feeding. Humpback whales (Megaptera novaeangliae) also sing extensively while on the Southern Ocean feeding grounds which allows for the exploration of song similarity between feeding grounds and breeding populations which helps to understand population mixing. The results of comparative song analyses between the ASSO and the Ecuadorian and Brazilian breeding populations and recordings from the Chilean, South African and Namibian migration routes/mid-latitude feeding grounds revealed that individuals from at least three humpback whale breeding populations most likely migrate to shared feeding grounds in the ASSO. Humpback whales from different populations potentially mix at different times (i.e., years) at feeding hotspots in variable locations. The ASSO seems to provide sufficient prey resources and seems to present an important area for both cultural and maybe even genetic exchange between populations supporting the maintenance of large gene pools. Assuming that multi-population feeding hotspots are also suitable habitat for krill and other krill-dependent predators, these areas in the ASSO should be carefully managed integrating population, ecosystem and fisheries management. Text Antarc* Antarctic Antarctic Krill baleen whale Euphausia superba Humpback Whale Megaptera novaeangliae Southern Ocean PubMed Central (PMC) Antarctic Southern Ocean Scientific Reports 12 1 |
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Article Schall, Elena Djokic, Divna Ross-Marsh, Erin C. Oña, Javier Denkinger, Judith Ernesto Baumgarten, Julio Rodrigues Padovese, Linilson Rossi-Santos, Marcos R. Carvalho Gonçalves, Maria Isabel Sousa-Lima, Renata Hucke-Gaete, Rodrigo Elwen, Simon Buchan, Susannah Gridley, Tess Van Opzeeland, Ilse Song recordings suggest feeding ground sharing in Southern Hemisphere humpback whales |
topic_facet |
Article |
description |
The Atlantic sector of the Southern Ocean (ASSO) has one of the highest densities of Antarctic krill (Euphausia superba) compared to other polar and subpolar regions, which attracts migratory baleen whale species to aggregate in this area for feeding. Humpback whales (Megaptera novaeangliae) also sing extensively while on the Southern Ocean feeding grounds which allows for the exploration of song similarity between feeding grounds and breeding populations which helps to understand population mixing. The results of comparative song analyses between the ASSO and the Ecuadorian and Brazilian breeding populations and recordings from the Chilean, South African and Namibian migration routes/mid-latitude feeding grounds revealed that individuals from at least three humpback whale breeding populations most likely migrate to shared feeding grounds in the ASSO. Humpback whales from different populations potentially mix at different times (i.e., years) at feeding hotspots in variable locations. The ASSO seems to provide sufficient prey resources and seems to present an important area for both cultural and maybe even genetic exchange between populations supporting the maintenance of large gene pools. Assuming that multi-population feeding hotspots are also suitable habitat for krill and other krill-dependent predators, these areas in the ASSO should be carefully managed integrating population, ecosystem and fisheries management. |
format |
Text |
author |
Schall, Elena Djokic, Divna Ross-Marsh, Erin C. Oña, Javier Denkinger, Judith Ernesto Baumgarten, Julio Rodrigues Padovese, Linilson Rossi-Santos, Marcos R. Carvalho Gonçalves, Maria Isabel Sousa-Lima, Renata Hucke-Gaete, Rodrigo Elwen, Simon Buchan, Susannah Gridley, Tess Van Opzeeland, Ilse |
author_facet |
Schall, Elena Djokic, Divna Ross-Marsh, Erin C. Oña, Javier Denkinger, Judith Ernesto Baumgarten, Julio Rodrigues Padovese, Linilson Rossi-Santos, Marcos R. Carvalho Gonçalves, Maria Isabel Sousa-Lima, Renata Hucke-Gaete, Rodrigo Elwen, Simon Buchan, Susannah Gridley, Tess Van Opzeeland, Ilse |
author_sort |
Schall, Elena |
title |
Song recordings suggest feeding ground sharing in Southern Hemisphere humpback whales |
title_short |
Song recordings suggest feeding ground sharing in Southern Hemisphere humpback whales |
title_full |
Song recordings suggest feeding ground sharing in Southern Hemisphere humpback whales |
title_fullStr |
Song recordings suggest feeding ground sharing in Southern Hemisphere humpback whales |
title_full_unstemmed |
Song recordings suggest feeding ground sharing in Southern Hemisphere humpback whales |
title_sort |
song recordings suggest feeding ground sharing in southern hemisphere humpback whales |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9385655/ https://doi.org/10.1038/s41598-022-17999-y |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctic Krill baleen whale Euphausia superba Humpback Whale Megaptera novaeangliae Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill baleen whale Euphausia superba Humpback Whale Megaptera novaeangliae Southern Ocean |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9385655/ http://dx.doi.org/10.1038/s41598-022-17999-y |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-022-17999-y |
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Scientific Reports |
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12 |
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1 |
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1766011491899670528 |