Data from: New determination of prey and parasite species for Northern Indian Ocean blue whales
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 behaviour of blue whales using dietary DNA metabarcoding of faecal s...
Main Authors: | , , , , , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
Zenodo
2019
|
Subjects: | |
Online Access: | https://doi.org/10.5061/dryad.qt352sg |
id |
ftzenodo:oai:zenodo.org:4942662 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:4942662 2024-09-15T17:57:18+00:00 Data from: New determination of prey and parasite species for Northern Indian Ocean blue whales de Vos, Asha Faux, Cassandra E. Marthick, James Dickinson, Joanne Jarman, Simon Jarman, Simon N. 2019-03-15 https://doi.org/10.5061/dryad.qt352sg unknown Zenodo https://doi.org/10.3389/fmars.2018.00104 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.qt352sg oai:zenodo.org:4942662 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Anthropocene shrimp Sri Lanka Euphausiidae Balaenoptera musculus) Sergestid Faeces blue whales Acanthocephala feeding Northern Indian Ocean krill info:eu-repo/semantics/other 2019 ftzenodo https://doi.org/10.5061/dryad.qt352sg10.3389/fmars.2018.00104 2024-07-27T01:17:52Z 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 behaviour of blue whales using dietary DNA metabarcoding of faecal samples. While globally blue whale populations feed predominantly on Euphausiidae, 87 % of prey DNA amplicons extracted from faecal 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. DNA sequences amplified from blue whale scats Fastq files of DNA sequences amplified from blue whale scats. BlueWhaleDietSequencingRawData.zip Other/Unknown Material Balaenoptera musculus Blue whale Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Anthropocene shrimp Sri Lanka Euphausiidae Balaenoptera musculus) Sergestid Faeces blue whales Acanthocephala feeding Northern Indian Ocean krill |
spellingShingle |
Anthropocene shrimp Sri Lanka Euphausiidae Balaenoptera musculus) Sergestid Faeces blue whales Acanthocephala feeding Northern Indian Ocean krill de Vos, Asha Faux, Cassandra E. Marthick, James Dickinson, Joanne Jarman, Simon Jarman, Simon N. Data from: New determination of prey and parasite species for Northern Indian Ocean blue whales |
topic_facet |
Anthropocene shrimp Sri Lanka Euphausiidae Balaenoptera musculus) Sergestid Faeces blue whales Acanthocephala feeding Northern Indian Ocean 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 behaviour of blue whales using dietary DNA metabarcoding of faecal samples. While globally blue whale populations feed predominantly on Euphausiidae, 87 % of prey DNA amplicons extracted from faecal 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. DNA sequences amplified from blue whale scats Fastq files of DNA sequences amplified from blue whale scats. BlueWhaleDietSequencingRawData.zip |
format |
Other/Unknown Material |
author |
de Vos, Asha Faux, Cassandra E. Marthick, James Dickinson, Joanne Jarman, Simon Jarman, Simon N. |
author_facet |
de Vos, Asha Faux, Cassandra E. Marthick, James Dickinson, Joanne Jarman, Simon Jarman, Simon N. |
author_sort |
de Vos, Asha |
title |
Data from: New determination of prey and parasite species for Northern Indian Ocean blue whales |
title_short |
Data from: New determination of prey and parasite species for Northern Indian Ocean blue whales |
title_full |
Data from: New determination of prey and parasite species for Northern Indian Ocean blue whales |
title_fullStr |
Data from: New determination of prey and parasite species for Northern Indian Ocean blue whales |
title_full_unstemmed |
Data from: New determination of prey and parasite species for Northern Indian Ocean blue whales |
title_sort |
data from: new determination of prey and parasite species for northern indian ocean blue whales |
publisher |
Zenodo |
publishDate |
2019 |
url |
https://doi.org/10.5061/dryad.qt352sg |
genre |
Balaenoptera musculus Blue whale |
genre_facet |
Balaenoptera musculus Blue whale |
op_relation |
https://doi.org/10.3389/fmars.2018.00104 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.qt352sg oai:zenodo.org:4942662 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.qt352sg10.3389/fmars.2018.00104 |
_version_ |
1810433457795366912 |