Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms
The study revealed species- and stage-specific differences in lipid accumulation of the dominant Antarctic copepods, the primarily herbivorous Calanoides acutus (copepodite stage V (CV), females) and the more omnivorous Calanus propinquus (females) storing wax esters and triacylglycerols, respective...
Published in: | Philosophical Transactions of the Royal Society B: Biological Sciences |
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Online Access: | https://epic.awi.de/id/eprint/52308/ https://epic.awi.de/id/eprint/52308/1/rstb2019_0647.pdf https://doi.org/10.1098/rstb.2019.0647 https://hdl.handle.net/10013/epic.880a59c2-465f-40e2-b424-afa4ad38b8a1 https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:52308 2023-05-15T13:45:22+02:00 Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms Graeve, Martin Boissonnot, Lauris Niehoff, Barbara Hagen, Wilhelm Kattner, Gerhard 2020-06-15 application/pdf https://epic.awi.de/id/eprint/52308/ https://epic.awi.de/id/eprint/52308/1/rstb2019_0647.pdf https://doi.org/10.1098/rstb.2019.0647 https://hdl.handle.net/10013/epic.880a59c2-465f-40e2-b424-afa4ad38b8a1 https://hdl.handle.net/ unknown royalsocietypublishing.org/journal/rstb https://epic.awi.de/id/eprint/52308/1/rstb2019_0647.pdf https://hdl.handle.net/ Graeve, M. orcid:0000-0002-2294-1915 , Boissonnot, L. , Niehoff, B. , Hagen, W. and Kattner, G. (2020) Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms , Philosophical Transactions of the Royal Society B: Biological Sciences, 375 (1804), p. 20190647 . doi:10.1098/rstb.2019.0647 <https://doi.org/10.1098/rstb.2019.0647> , hdl:10013/epic.880a59c2-465f-40e2-b424-afa4ad38b8a1 EPIC3Philosophical Transactions of the Royal Society B: Biological Sciences, royalsocietypublishing.org/journal/rstb, 375(1804), pp. 20190647, ISSN: 0962-8436 Article isiRev 2020 ftawi https://doi.org/10.1098/rstb.2019.0647 2021-12-24T15:45:38Z The study revealed species- and stage-specific differences in lipid accumulation of the dominant Antarctic copepods, the primarily herbivorous Calanoides acutus (copepodite stage V (CV), females) and the more omnivorous Calanus propinquus (females) storing wax esters and triacylglycerols, respectively, which were collected in summer (end of December). Feeding carbon-labelled diatoms to these copepods, 13C elucidated assimilation and turnover rates of copepod total lipids as well as specific fatty acids and alcohols. The 13C incorporation was monitored by compound-specific stable isotope analysis (CSIA). CV stages of C. acutus exhibited an intense total lipid turnover and 55% of total lipidswere labelled after 9 days of feeding. By contrast, total lipid assimilation of female C. acutus and C. propinquus was lower with 29% and 32%, respectively. The major dietary fatty acids 16:0, 16:1(n − 7) and 20:5(n − 3) had high turnover rates in all specimens. In C. acutus CV, the high rates of the de novo synthesized long-chain monounsaturated fatty acids and alcohols 20:1(n − 9) and 22:1(n − 11) indicate intense lipid deposition, whereas these rates were low in females. The differences in lipid assimilation and turnover clearly show that the copepod species exhibit a high variability and plasticity to adapt their lipid production to their various life phases. This article is part of the theme issue ‘The next horizons for lipids as ‘trophic biomarkers’: evidence and significance of consumer modification of dietary fatty acids’. Article in Journal/Newspaper Antarc* Antarctic Copepods Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Philosophical Transactions of the Royal Society B: Biological Sciences 375 1804 20190647 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The study revealed species- and stage-specific differences in lipid accumulation of the dominant Antarctic copepods, the primarily herbivorous Calanoides acutus (copepodite stage V (CV), females) and the more omnivorous Calanus propinquus (females) storing wax esters and triacylglycerols, respectively, which were collected in summer (end of December). Feeding carbon-labelled diatoms to these copepods, 13C elucidated assimilation and turnover rates of copepod total lipids as well as specific fatty acids and alcohols. The 13C incorporation was monitored by compound-specific stable isotope analysis (CSIA). CV stages of C. acutus exhibited an intense total lipid turnover and 55% of total lipidswere labelled after 9 days of feeding. By contrast, total lipid assimilation of female C. acutus and C. propinquus was lower with 29% and 32%, respectively. The major dietary fatty acids 16:0, 16:1(n − 7) and 20:5(n − 3) had high turnover rates in all specimens. In C. acutus CV, the high rates of the de novo synthesized long-chain monounsaturated fatty acids and alcohols 20:1(n − 9) and 22:1(n − 11) indicate intense lipid deposition, whereas these rates were low in females. The differences in lipid assimilation and turnover clearly show that the copepod species exhibit a high variability and plasticity to adapt their lipid production to their various life phases. This article is part of the theme issue ‘The next horizons for lipids as ‘trophic biomarkers’: evidence and significance of consumer modification of dietary fatty acids’. |
format |
Article in Journal/Newspaper |
author |
Graeve, Martin Boissonnot, Lauris Niehoff, Barbara Hagen, Wilhelm Kattner, Gerhard |
spellingShingle |
Graeve, Martin Boissonnot, Lauris Niehoff, Barbara Hagen, Wilhelm Kattner, Gerhard Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms |
author_facet |
Graeve, Martin Boissonnot, Lauris Niehoff, Barbara Hagen, Wilhelm Kattner, Gerhard |
author_sort |
Graeve, Martin |
title |
Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms |
title_short |
Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms |
title_full |
Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms |
title_fullStr |
Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms |
title_full_unstemmed |
Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms |
title_sort |
assimilation and turnover rates of lipid compounds in dominant antarctic copepods fed with 13 c-enriched diatoms |
publisher |
royalsocietypublishing.org/journal/rstb |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/52308/ https://epic.awi.de/id/eprint/52308/1/rstb2019_0647.pdf https://doi.org/10.1098/rstb.2019.0647 https://hdl.handle.net/10013/epic.880a59c2-465f-40e2-b424-afa4ad38b8a1 https://hdl.handle.net/ |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Copepods |
genre_facet |
Antarc* Antarctic Copepods |
op_source |
EPIC3Philosophical Transactions of the Royal Society B: Biological Sciences, royalsocietypublishing.org/journal/rstb, 375(1804), pp. 20190647, ISSN: 0962-8436 |
op_relation |
https://epic.awi.de/id/eprint/52308/1/rstb2019_0647.pdf https://hdl.handle.net/ Graeve, M. orcid:0000-0002-2294-1915 , Boissonnot, L. , Niehoff, B. , Hagen, W. and Kattner, G. (2020) Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with 13 C-enriched diatoms , Philosophical Transactions of the Royal Society B: Biological Sciences, 375 (1804), p. 20190647 . doi:10.1098/rstb.2019.0647 <https://doi.org/10.1098/rstb.2019.0647> , hdl:10013/epic.880a59c2-465f-40e2-b424-afa4ad38b8a1 |
op_doi |
https://doi.org/10.1098/rstb.2019.0647 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
375 |
container_issue |
1804 |
container_start_page |
20190647 |
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1766222097796825088 |