Trophic level and fatty acids in harp seals compared with common minke whales in the Barents Sea
The objectives of this study were to explore trophic levels and possible diet overlap between harp seals ( Pagophilus groenlandicus ) and common minke whales ( Balaenoptera acutoroostrata ) in the Barents Sea using stable isotopes of nitrogen (δ 15 N) and carbon (δ 13 C) and fatty acid analyses, and...
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ftdatacite:10.6084/m9.figshare.5141050 2023-05-15T15:38:33+02:00 Trophic level and fatty acids in harp seals compared with common minke whales in the Barents Sea Haug, Tore Falk-Petersen, Stig Greenacre, Michael Hop, Haakon Lindstrøm, Ulf Sonnich Meier Nilssen, Kjell T. Wold, Anette 2017 https://dx.doi.org/10.6084/m9.figshare.5141050 https://tandf.figshare.com/articles/journal_contribution/Trophic_level_and_fatty_acids_in_harp_seals_compared_with_common_minke_whales_in_the_Barents_Sea/5141050/1 unknown Taylor & Francis https://dx.doi.org/10.1080/17451000.2017.1313988 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Biochemistry 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences Text article-journal Journal contribution ScholarlyArticle 2017 ftdatacite https://doi.org/10.6084/m9.figshare.5141050 https://doi.org/10.1080/17451000.2017.1313988 2021-11-05T12:55:41Z The objectives of this study were to explore trophic levels and possible diet overlap between harp seals ( Pagophilus groenlandicus ) and common minke whales ( Balaenoptera acutoroostrata ) in the Barents Sea using stable isotopes of nitrogen (δ 15 N) and carbon (δ 13 C) and fatty acid analyses, and to explore the energy pathways from the plankton to the top predators. Blubber and muscle samples from 93 harp seals and 20 minke whales were collected in the southern Barents Sea in May 2011. The study showed that harp seals were at a higher trophic level than minke whales during spring. This supported previous diet studies suggesting a more fish-dominant diet for seals, as compared with the whales, at this time of the year. The stable isotopes and fatty acids indicated niche separation between the seals and the whales, and between different age groups of the harp seals. Older seals had fatty acid profiles more equal to minke whales as compared with younger seals. Furthermore, while the fatty acid profiles suggested that krill were of particular importance for the young seals, the profiles from older seals and whales suggested that fish dominated their diets. Text Barents Sea Pagophilus groenlandicus DataCite Metadata Store (German National Library of Science and Technology) Barents Sea |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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unknown |
topic |
Biochemistry 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences |
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Biochemistry 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences Haug, Tore Falk-Petersen, Stig Greenacre, Michael Hop, Haakon Lindstrøm, Ulf Sonnich Meier Nilssen, Kjell T. Wold, Anette Trophic level and fatty acids in harp seals compared with common minke whales in the Barents Sea |
topic_facet |
Biochemistry 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Inorganic Chemistry FOS Chemical sciences |
description |
The objectives of this study were to explore trophic levels and possible diet overlap between harp seals ( Pagophilus groenlandicus ) and common minke whales ( Balaenoptera acutoroostrata ) in the Barents Sea using stable isotopes of nitrogen (δ 15 N) and carbon (δ 13 C) and fatty acid analyses, and to explore the energy pathways from the plankton to the top predators. Blubber and muscle samples from 93 harp seals and 20 minke whales were collected in the southern Barents Sea in May 2011. The study showed that harp seals were at a higher trophic level than minke whales during spring. This supported previous diet studies suggesting a more fish-dominant diet for seals, as compared with the whales, at this time of the year. The stable isotopes and fatty acids indicated niche separation between the seals and the whales, and between different age groups of the harp seals. Older seals had fatty acid profiles more equal to minke whales as compared with younger seals. Furthermore, while the fatty acid profiles suggested that krill were of particular importance for the young seals, the profiles from older seals and whales suggested that fish dominated their diets. |
format |
Text |
author |
Haug, Tore Falk-Petersen, Stig Greenacre, Michael Hop, Haakon Lindstrøm, Ulf Sonnich Meier Nilssen, Kjell T. Wold, Anette |
author_facet |
Haug, Tore Falk-Petersen, Stig Greenacre, Michael Hop, Haakon Lindstrøm, Ulf Sonnich Meier Nilssen, Kjell T. Wold, Anette |
author_sort |
Haug, Tore |
title |
Trophic level and fatty acids in harp seals compared with common minke whales in the Barents Sea |
title_short |
Trophic level and fatty acids in harp seals compared with common minke whales in the Barents Sea |
title_full |
Trophic level and fatty acids in harp seals compared with common minke whales in the Barents Sea |
title_fullStr |
Trophic level and fatty acids in harp seals compared with common minke whales in the Barents Sea |
title_full_unstemmed |
Trophic level and fatty acids in harp seals compared with common minke whales in the Barents Sea |
title_sort |
trophic level and fatty acids in harp seals compared with common minke whales in the barents sea |
publisher |
Taylor & Francis |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.5141050 https://tandf.figshare.com/articles/journal_contribution/Trophic_level_and_fatty_acids_in_harp_seals_compared_with_common_minke_whales_in_the_Barents_Sea/5141050/1 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Pagophilus groenlandicus |
genre_facet |
Barents Sea Pagophilus groenlandicus |
op_relation |
https://dx.doi.org/10.1080/17451000.2017.1313988 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.5141050 https://doi.org/10.1080/17451000.2017.1313988 |
_version_ |
1766369586118131712 |