Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea
Fatty acid profiles and lipid biomarkers from 20 harp seals were used to investigate the foraging ecology of harp seals and the transfer of energy through the Franz Josef Land-Novaya Zemlya food chain. High levels of the Calanus fatty acid trophic markers (FATMs) 20:1(n-9) (mean 14.6%) and 22:1(n-11...
Published in: | Polar Research |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Norwegian Polar Institute
2004
|
Subjects: | |
Online Access: | https://polarresearch.net/index.php/polar/article/view/2072 https://doi.org/10.3402/polar.v23i1.6265 |
id |
ftjpolarres:oai:journals.openacademia.net:article/2072 |
---|---|
record_format |
openpolar |
spelling |
ftjpolarres:oai:journals.openacademia.net:article/2072 2024-09-15T17:57:55+00:00 Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea Falk-Petersen, Stig Haug, Tore Nilssen, Kjell T. Wold, Anette Dahl, Trine M. 2004-06-01 application/pdf https://polarresearch.net/index.php/polar/article/view/2072 https://doi.org/10.3402/polar.v23i1.6265 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2072/5323 https://polarresearch.net/index.php/polar/article/view/2072 doi:10.3402/polar.v23i1.6265 Polar Research; Vol. 23 No. 1 (2004); 43-50 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2004 ftjpolarres https://doi.org/10.3402/polar.v23i1.6265 2024-06-28T03:10:15Z Fatty acid profiles and lipid biomarkers from 20 harp seals were used to investigate the foraging ecology of harp seals and the transfer of energy through the Franz Josef Land-Novaya Zemlya food chain. High levels of the Calanus fatty acid trophic markers (FATMs) 20:1(n-9) (mean 14.6%) and 22:1(n-11) (mean 6.5%), together with the typical dinoflagellate FATMs 22:6(n-3) (mean 6.5%) and C18PUFA (mean 5.5%), were found in blubber samples. Based on the analyses of the fatty acid profiles separated by principal component analysis, we confirmed the importance of polar cod (Boreogadus saida) and the pelagic amphipod Themisto libellula in the diet of harp seal. The high levels of 22:6(n-3), C18PUFA and C20 and C22 FATMs show that the harp seal lipids mainly originate from dinoflagellates consumed by Calanus copepods. Article in Journal/Newspaper Barents Sea Boreogadus saida Franz Josef Land Harp Seal Novaya Zemlya Phoca groenlandica polar cod Polar Research Themisto libellula Copepods Polar Research Polar Research 23 1 43 50 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
description |
Fatty acid profiles and lipid biomarkers from 20 harp seals were used to investigate the foraging ecology of harp seals and the transfer of energy through the Franz Josef Land-Novaya Zemlya food chain. High levels of the Calanus fatty acid trophic markers (FATMs) 20:1(n-9) (mean 14.6%) and 22:1(n-11) (mean 6.5%), together with the typical dinoflagellate FATMs 22:6(n-3) (mean 6.5%) and C18PUFA (mean 5.5%), were found in blubber samples. Based on the analyses of the fatty acid profiles separated by principal component analysis, we confirmed the importance of polar cod (Boreogadus saida) and the pelagic amphipod Themisto libellula in the diet of harp seal. The high levels of 22:6(n-3), C18PUFA and C20 and C22 FATMs show that the harp seal lipids mainly originate from dinoflagellates consumed by Calanus copepods. |
format |
Article in Journal/Newspaper |
author |
Falk-Petersen, Stig Haug, Tore Nilssen, Kjell T. Wold, Anette Dahl, Trine M. |
spellingShingle |
Falk-Petersen, Stig Haug, Tore Nilssen, Kjell T. Wold, Anette Dahl, Trine M. Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea |
author_facet |
Falk-Petersen, Stig Haug, Tore Nilssen, Kjell T. Wold, Anette Dahl, Trine M. |
author_sort |
Falk-Petersen, Stig |
title |
Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea |
title_short |
Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea |
title_full |
Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea |
title_fullStr |
Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea |
title_full_unstemmed |
Lipids and trophic linkages in harp seal (Phoca groenlandica) from the eastern Barents Sea |
title_sort |
lipids and trophic linkages in harp seal (phoca groenlandica) from the eastern barents sea |
publisher |
Norwegian Polar Institute |
publishDate |
2004 |
url |
https://polarresearch.net/index.php/polar/article/view/2072 https://doi.org/10.3402/polar.v23i1.6265 |
genre |
Barents Sea Boreogadus saida Franz Josef Land Harp Seal Novaya Zemlya Phoca groenlandica polar cod Polar Research Themisto libellula Copepods |
genre_facet |
Barents Sea Boreogadus saida Franz Josef Land Harp Seal Novaya Zemlya Phoca groenlandica polar cod Polar Research Themisto libellula Copepods |
op_source |
Polar Research; Vol. 23 No. 1 (2004); 43-50 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2072/5323 https://polarresearch.net/index.php/polar/article/view/2072 doi:10.3402/polar.v23i1.6265 |
op_doi |
https://doi.org/10.3402/polar.v23i1.6265 |
container_title |
Polar Research |
container_volume |
23 |
container_issue |
1 |
container_start_page |
43 |
op_container_end_page |
50 |
_version_ |
1810434130283855872 |