Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night
This is a post-peer-review, pre-copyedit version of an article published in Polar Biology. The final authenticated version is available online at: https://doi.org/10.1007/s00300-020-02669-4. Recent discoveries of high levels of biological activity in the Arctic marine ecosystems during the polar nig...
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Online Access: | https://hdl.handle.net/10037/20938 https://doi.org/10.1007/s00300-020-02669-4 |
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ftunivtroemsoe:oai:munin.uit.no:10037/20938 2023-05-15T14:24:45+02:00 Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night Pekkoeva, Svetlana N. Murzina, Svetlana A. Nefedova, Zinaida A. Falk-Pedersen, Stig Berge, Jørgen Lønne, Ole Jørgen Nemova, Nina N. 2020-04-23 https://hdl.handle.net/10037/20938 https://doi.org/10.1007/s00300-020-02669-4 eng eng Springer Polar Biology Norges forskningsråd: ES504895 Norges forskningsråd: 244319 Norges forskningsråd: 245923 info:eu-repo/grantAgreement/RCN/POLARPROG/244319/Norway/Arctic Ocean ecosystems - Applied technology, Biological interactions and Consequences in an era of abrupt climate change// info:eu-repo/grantAgreement/RCN/FORINFRA/245923/Norway/Arctic ABC Development// Pekkoeva, Murzina, Nefedova, Falk-Pedersen, Berge, Lønne, Nemova. Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night. Polar Biology. 2020;43(6):657-664 FRIDAID 1821783 doi:10.1007/s00300-020-02669-4 0722-4060 1432-2056 https://hdl.handle.net/10037/20938 openAccess © 2020 Springer Nature Switzerland AG. Part of Springer Nature. VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Journal article Tidsskriftartikkel Peer reviewed acceptedVersion 2020 ftunivtroemsoe https://doi.org/10.1007/s00300-020-02669-4 2021-06-25T17:58:05Z This is a post-peer-review, pre-copyedit version of an article published in Polar Biology. The final authenticated version is available online at: https://doi.org/10.1007/s00300-020-02669-4. Recent discoveries of high levels of biological activity in the Arctic marine ecosystems during the polar night raise questions regarding the ecophysiology of the pelagic postlarval daubed shanny Leptoclinus maculatus. Of special interest is the composition of the lipid sac—a unique feature not found in other Arctic fishes. Analysis of the fatty acid content of major classes of lipids as membrane—total phospholipids (PL) and storage—triacylglycerols (TAG) in the different postlarvae stages during the polar night is presented in this work for the first time. A high level of monounsaturated fatty acids (MUFAs) (71–74% of the total fatty acids (FA) of TAG) was found in the TAG of the L3-L4* postlarvae stages, among which 20:1(n-9) (28%) and 22:1(n-11) (27–29%) FAs are trophic biomarkers of the zooplankton Calanus spp. Among the polyunsaturated FA (PUFA), the FAs of (n-3) class were dominated (22:6(n-3)—in the PL, and 18:4(n-3)—in the TAG). A decrease in the content of the saturated FA (SFA) and an increase in the MUFA in the structural PL during the transition from the postlarval to the demersal stage were observed. Our analyses of the FA composition of the lipid sac suggest that the fish continues to actively hunt for its preferred prey item Calanus spp. during the polar night. Article in Journal/Newspaper Arctic Arctic Daubed shanny Leptoclinus maculatus Polar Biology polar night Zooplankton University of Tromsø: Munin Open Research Archive Arctic Polar Biology 43 6 657 664 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Pekkoeva, Svetlana N. Murzina, Svetlana A. Nefedova, Zinaida A. Falk-Pedersen, Stig Berge, Jørgen Lønne, Ole Jørgen Nemova, Nina N. Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 |
description |
This is a post-peer-review, pre-copyedit version of an article published in Polar Biology. The final authenticated version is available online at: https://doi.org/10.1007/s00300-020-02669-4. Recent discoveries of high levels of biological activity in the Arctic marine ecosystems during the polar night raise questions regarding the ecophysiology of the pelagic postlarval daubed shanny Leptoclinus maculatus. Of special interest is the composition of the lipid sac—a unique feature not found in other Arctic fishes. Analysis of the fatty acid content of major classes of lipids as membrane—total phospholipids (PL) and storage—triacylglycerols (TAG) in the different postlarvae stages during the polar night is presented in this work for the first time. A high level of monounsaturated fatty acids (MUFAs) (71–74% of the total fatty acids (FA) of TAG) was found in the TAG of the L3-L4* postlarvae stages, among which 20:1(n-9) (28%) and 22:1(n-11) (27–29%) FAs are trophic biomarkers of the zooplankton Calanus spp. Among the polyunsaturated FA (PUFA), the FAs of (n-3) class were dominated (22:6(n-3)—in the PL, and 18:4(n-3)—in the TAG). A decrease in the content of the saturated FA (SFA) and an increase in the MUFA in the structural PL during the transition from the postlarval to the demersal stage were observed. Our analyses of the FA composition of the lipid sac suggest that the fish continues to actively hunt for its preferred prey item Calanus spp. during the polar night. |
format |
Article in Journal/Newspaper |
author |
Pekkoeva, Svetlana N. Murzina, Svetlana A. Nefedova, Zinaida A. Falk-Pedersen, Stig Berge, Jørgen Lønne, Ole Jørgen Nemova, Nina N. |
author_facet |
Pekkoeva, Svetlana N. Murzina, Svetlana A. Nefedova, Zinaida A. Falk-Pedersen, Stig Berge, Jørgen Lønne, Ole Jørgen Nemova, Nina N. |
author_sort |
Pekkoeva, Svetlana N. |
title |
Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night |
title_short |
Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night |
title_full |
Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night |
title_fullStr |
Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night |
title_full_unstemmed |
Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night |
title_sort |
fatty acid composition of the postlarval daubed shanny (leptoclinus maculatus) during the polar night |
publisher |
Springer |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/20938 https://doi.org/10.1007/s00300-020-02669-4 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Daubed shanny Leptoclinus maculatus Polar Biology polar night Zooplankton |
genre_facet |
Arctic Arctic Daubed shanny Leptoclinus maculatus Polar Biology polar night Zooplankton |
op_relation |
Polar Biology Norges forskningsråd: ES504895 Norges forskningsråd: 244319 Norges forskningsråd: 245923 info:eu-repo/grantAgreement/RCN/POLARPROG/244319/Norway/Arctic Ocean ecosystems - Applied technology, Biological interactions and Consequences in an era of abrupt climate change// info:eu-repo/grantAgreement/RCN/FORINFRA/245923/Norway/Arctic ABC Development// Pekkoeva, Murzina, Nefedova, Falk-Pedersen, Berge, Lønne, Nemova. Fatty acid composition of the postlarval daubed shanny (Leptoclinus maculatus) during the polar night. Polar Biology. 2020;43(6):657-664 FRIDAID 1821783 doi:10.1007/s00300-020-02669-4 0722-4060 1432-2056 https://hdl.handle.net/10037/20938 |
op_rights |
openAccess © 2020 Springer Nature Switzerland AG. Part of Springer Nature. |
op_doi |
https://doi.org/10.1007/s00300-020-02669-4 |
container_title |
Polar Biology |
container_volume |
43 |
container_issue |
6 |
container_start_page |
657 |
op_container_end_page |
664 |
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1766297215521783808 |