DataSheet1.docx
Blue whales are little studied, face significant anthropogenic threats and within the Northern Indian Ocean, have a restricted range, making them an archetype for conservation needs of megafauna around the world. We studied feeding behavior of blue whales using dietary DNA metabarcoding of fecal sam...
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ftfrontimediafig:oai:figshare.com:article/6106367 2023-05-15T15:45:13+02:00 DataSheet1.docx Asha de Vos Cassandra E. Faux James Marthick Joanne Dickinson Simon N. Jarman 2018-04-06T12:44:15Z https://doi.org/10.3389/fmars.2018.00104.s001 https://figshare.com/articles/DataSheet1_docx/6106367 unknown doi:10.3389/fmars.2018.00104.s001 https://figshare.com/articles/DataSheet1_docx/6106367 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering DNA metabarcoding Sri Lanka Northern Indian Ocean feces Sergestidae Euphausiidae acanthocephala krill Dataset 2018 ftfrontimediafig https://doi.org/10.3389/fmars.2018.00104.s001 2018-04-11T22:57:26Z Blue whales are little studied, face significant anthropogenic threats and within the Northern Indian Ocean, have a restricted range, making them an archetype for conservation needs of megafauna around the world. We studied feeding behavior of blue whales using dietary DNA metabarcoding of fecal samples. While globally blue whale populations feed predominantly on Euphausiidae, 87% of prey DNA amplicons extracted from fecal samples from this population were sergestid shrimp, demonstrating that blue whales can locate and feed on dense swarms of other types of prey when they occur. Within the Indian Ocean sergestids are present within the top 300 m, which correlates with the deep scattering layer observed by hydroacoustics. Studies suggest that this requirement to dive deeper in search of prey likely explains the prevalence of fluke up diving within this population of blue whales relative to other parts of the globe. Furthermore, this study revealed the presence of acanthocephalan endoparasites within the stomach and intestines of the Northern Indian Ocean blue whales. This represents the first record of Acanthocephala in blue whales in the Northern Indian Ocean and highlights the need for further studies on both the ecto- and endoparasitic flora and monitoring of health of these cetaceans for their management and conservation. Dataset Blue whale Frontiers: Figshare Indian |
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Frontiers: Figshare |
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ftfrontimediafig |
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unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering DNA metabarcoding Sri Lanka Northern Indian Ocean feces Sergestidae Euphausiidae acanthocephala krill |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering DNA metabarcoding Sri Lanka Northern Indian Ocean feces Sergestidae Euphausiidae acanthocephala krill Asha de Vos Cassandra E. Faux James Marthick Joanne Dickinson Simon N. Jarman DataSheet1.docx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering DNA metabarcoding Sri Lanka Northern Indian Ocean feces Sergestidae Euphausiidae acanthocephala krill |
description |
Blue whales are little studied, face significant anthropogenic threats and within the Northern Indian Ocean, have a restricted range, making them an archetype for conservation needs of megafauna around the world. We studied feeding behavior of blue whales using dietary DNA metabarcoding of fecal samples. While globally blue whale populations feed predominantly on Euphausiidae, 87% of prey DNA amplicons extracted from fecal samples from this population were sergestid shrimp, demonstrating that blue whales can locate and feed on dense swarms of other types of prey when they occur. Within the Indian Ocean sergestids are present within the top 300 m, which correlates with the deep scattering layer observed by hydroacoustics. Studies suggest that this requirement to dive deeper in search of prey likely explains the prevalence of fluke up diving within this population of blue whales relative to other parts of the globe. Furthermore, this study revealed the presence of acanthocephalan endoparasites within the stomach and intestines of the Northern Indian Ocean blue whales. This represents the first record of Acanthocephala in blue whales in the Northern Indian Ocean and highlights the need for further studies on both the ecto- and endoparasitic flora and monitoring of health of these cetaceans for their management and conservation. |
format |
Dataset |
author |
Asha de Vos Cassandra E. Faux James Marthick Joanne Dickinson Simon N. Jarman |
author_facet |
Asha de Vos Cassandra E. Faux James Marthick Joanne Dickinson Simon N. Jarman |
author_sort |
Asha de Vos |
title |
DataSheet1.docx |
title_short |
DataSheet1.docx |
title_full |
DataSheet1.docx |
title_fullStr |
DataSheet1.docx |
title_full_unstemmed |
DataSheet1.docx |
title_sort |
datasheet1.docx |
publishDate |
2018 |
url |
https://doi.org/10.3389/fmars.2018.00104.s001 https://figshare.com/articles/DataSheet1_docx/6106367 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Blue whale |
genre_facet |
Blue whale |
op_relation |
doi:10.3389/fmars.2018.00104.s001 https://figshare.com/articles/DataSheet1_docx/6106367 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2018.00104.s001 |
_version_ |
1766379559310065664 |