Epibiotic fauna of the Antarctic minke whale as a reliable indicator of seasonal movements
Antarctic minke whales, Balaenoptera bonaerensis, breed in tropical and temperate waters of the Southern Hemisphere in winter and feed in Antarctic grounds in the austral summer. These seasonal migrations could be less defined than those of other whale species, but the evidence is scanty. We quantit...
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ftpubmed:oai:pubmedcentral.nih.gov:9789092 2023-05-15T13:58:38+02:00 Epibiotic fauna of the Antarctic minke whale as a reliable indicator of seasonal movements Ten, S. Konishi, K. Raga, J. A. Pastene, L. A. Aznar, F. J. 2022-12-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9789092/ http://www.ncbi.nlm.nih.gov/pubmed/36564393 https://doi.org/10.1038/s41598-022-25929-1 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9789092/ http://www.ncbi.nlm.nih.gov/pubmed/36564393 http://dx.doi.org/10.1038/s41598-022-25929-1 © 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/s41598-022-25929-1 2023-01-01T01:35:44Z Antarctic minke whales, Balaenoptera bonaerensis, breed in tropical and temperate waters of the Southern Hemisphere in winter and feed in Antarctic grounds in the austral summer. These seasonal migrations could be less defined than those of other whale species, but the evidence is scanty. We quantitatively describe the epibiotic fauna of Antarctic minke whales and explore its potential to trace migrations. Seven species were found on 125 out of 333 examined Antarctic minke whales captured during the last Antarctic NEWREP-A expedition in the Southern Ocean: the amphipod Balaenocyamus balaenopterae (prevalence = 22.2%), the copepod Pennella balaenoptera (0.6%); three coronulid, obligate barnacles, Xenobalanus globicipitis (11.1%), Coronula reginae (8.7%), C. diadema (0.9%); and two lepadid, facultative barnacles, Conchoderma auritum (9.0%) and C. virgatum (0.3%). Species with prevalence > 8% exhibited a modest increase in their probability of occurrence with whale body length. Data indicated positive associations between coronulid barnacles and no apparent recruitment in Antarctic waters. All specimens of X. globicipitis were dead, showing progressive degradation throughout the sampling period, and a geographic analysis indicated a marked drop of occurrence where the minimum sea surface temperature is < 12 °C. Thus, field detection -with non-lethal methodologies, such as drones- of coronulid barnacles, especially X. globicipitis, on whales in the Southern Ocean could evince seasonal migration. Future investigations on geographical distribution, growth rate, and degradation (for X. globicipitis) could also assist in timing whales’ migration. Text Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale Southern Ocean PubMed Central (PMC) Antarctic Austral Southern Ocean The Antarctic Scientific Reports 12 1 |
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Article Ten, S. Konishi, K. Raga, J. A. Pastene, L. A. Aznar, F. J. Epibiotic fauna of the Antarctic minke whale as a reliable indicator of seasonal movements |
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Article |
description |
Antarctic minke whales, Balaenoptera bonaerensis, breed in tropical and temperate waters of the Southern Hemisphere in winter and feed in Antarctic grounds in the austral summer. These seasonal migrations could be less defined than those of other whale species, but the evidence is scanty. We quantitatively describe the epibiotic fauna of Antarctic minke whales and explore its potential to trace migrations. Seven species were found on 125 out of 333 examined Antarctic minke whales captured during the last Antarctic NEWREP-A expedition in the Southern Ocean: the amphipod Balaenocyamus balaenopterae (prevalence = 22.2%), the copepod Pennella balaenoptera (0.6%); three coronulid, obligate barnacles, Xenobalanus globicipitis (11.1%), Coronula reginae (8.7%), C. diadema (0.9%); and two lepadid, facultative barnacles, Conchoderma auritum (9.0%) and C. virgatum (0.3%). Species with prevalence > 8% exhibited a modest increase in their probability of occurrence with whale body length. Data indicated positive associations between coronulid barnacles and no apparent recruitment in Antarctic waters. All specimens of X. globicipitis were dead, showing progressive degradation throughout the sampling period, and a geographic analysis indicated a marked drop of occurrence where the minimum sea surface temperature is < 12 °C. Thus, field detection -with non-lethal methodologies, such as drones- of coronulid barnacles, especially X. globicipitis, on whales in the Southern Ocean could evince seasonal migration. Future investigations on geographical distribution, growth rate, and degradation (for X. globicipitis) could also assist in timing whales’ migration. |
format |
Text |
author |
Ten, S. Konishi, K. Raga, J. A. Pastene, L. A. Aznar, F. J. |
author_facet |
Ten, S. Konishi, K. Raga, J. A. Pastene, L. A. Aznar, F. J. |
author_sort |
Ten, S. |
title |
Epibiotic fauna of the Antarctic minke whale as a reliable indicator of seasonal movements |
title_short |
Epibiotic fauna of the Antarctic minke whale as a reliable indicator of seasonal movements |
title_full |
Epibiotic fauna of the Antarctic minke whale as a reliable indicator of seasonal movements |
title_fullStr |
Epibiotic fauna of the Antarctic minke whale as a reliable indicator of seasonal movements |
title_full_unstemmed |
Epibiotic fauna of the Antarctic minke whale as a reliable indicator of seasonal movements |
title_sort |
epibiotic fauna of the antarctic minke whale as a reliable indicator of seasonal movements |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9789092/ http://www.ncbi.nlm.nih.gov/pubmed/36564393 https://doi.org/10.1038/s41598-022-25929-1 |
geographic |
Antarctic Austral Southern Ocean The Antarctic |
geographic_facet |
Antarctic Austral Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Minke whale Balaenoptera bonaerensis minke whale Southern Ocean |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9789092/ http://www.ncbi.nlm.nih.gov/pubmed/36564393 http://dx.doi.org/10.1038/s41598-022-25929-1 |
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/s41598-022-25929-1 |
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Scientific Reports |
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12 |
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