Lipid composition of the Antarctic fish Pleuragramma antarcticum. Influence of age class
Larvae and juvenile stages of Pleuragramma antarcticum have been collected in the Dumont D'Urville Sea (East Antarctica) during summer 2008 on board the TRV Umitaka Maru during the CEAMARC survey. Detailed analyses of their lipid class and fatty acid compositions were carried out. P. antarcticu...
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fttriple:oai:gotriple.eu:10670/1.sqorhr 2023-05-15T13:43:56+02:00 Lipid composition of the Antarctic fish Pleuragramma antarcticum. Influence of age class Mayzaud, Patrick Chevallier, J. Tavernier, E. Moteki, M. Koubbi, Philippe https://doi.org/10.1016/j.polar.2010.12.003 https://archimer.ifremer.fr/doc/00230/34127/32607.pdf https://archimer.ifremer.fr/doc/00230/34127/ en eng Elsevier Science Bv doi:10.1016/j.polar.2010.12.003 10670/1.sqorhr https://archimer.ifremer.fr/doc/00230/34127/32607.pdf https://archimer.ifremer.fr/doc/00230/34127/ other Archimer, archive institutionnelle de l'Ifremer Polar Science (1873-9652) (Elsevier Science Bv), 2011-08 , Vol. 5 , N. 2 , P. 264-271 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1016/j.polar.2010.12.003 2023-01-22T17:24:13Z Larvae and juvenile stages of Pleuragramma antarcticum have been collected in the Dumont D'Urville Sea (East Antarctica) during summer 2008 on board the TRV Umitaka Maru during the CEAMARC survey. Detailed analyses of their lipid class and fatty acid compositions were carried out. P. antarcticum showed a pronounced ontogenic lipid accumulation with increasing size. Larvae displayed a dominance of polar lipids (83% of total lipids) and low percentage of triglycerides (7%). Conversely juveniles showed an increasing accumulation of triglycerides (up to 72.4%). The fatty acid composition of polar lipids remained rather stable between stages with 22:6n-3 and 20:5n-3 as dominant contributors. The relatively minor ontogenic changes, e. g. increase of mono-unsaturated and decrease of C18 polyunsaturated fatty acids, may reflect the influence of differences in diet. Triglycerides showed that all three age classes are well segregated in term of fatty acid composition. Larvae triglycerides are characterized by significant percentages of 16:0, 20:5n-3, 20:6n-3 and to a minor extent 18:4n-3, which suggest a prymnesiophyte based diet. Juveniles are characterized by larger percentages of C20:1 and C22:1 acids, considered as markers of Calanus type copepods. The increasing contribution of 18:1n-9 in the triglycerides of the older juveniles suggests a gradual and increasing shift from a copepod dominant diet to an euphausiid dominant diet. Fatty acid trophic markers pattern suggests a shift from a phytophagous and omnivorous diet for larvae to a carnivorous diet for juveniles. Text Antarc* Antarctic Antarctica D'Urville Sea Dumont D'Urville Sea East Antarctica Polar Science Polar Science Copepods Unknown Antarctic D'Urville Sea ENVELOPE(140.000,140.000,-65.000,-65.000) Dumont d'Urville ENVELOPE(140.017,140.017,-66.667,-66.667) Dumont-d'Urville ENVELOPE(140.013,140.013,-66.667,-66.667) East Antarctica The Antarctic Polar Science 5 2 264 271 |
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English |
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envir geo Mayzaud, Patrick Chevallier, J. Tavernier, E. Moteki, M. Koubbi, Philippe Lipid composition of the Antarctic fish Pleuragramma antarcticum. Influence of age class |
topic_facet |
envir geo |
description |
Larvae and juvenile stages of Pleuragramma antarcticum have been collected in the Dumont D'Urville Sea (East Antarctica) during summer 2008 on board the TRV Umitaka Maru during the CEAMARC survey. Detailed analyses of their lipid class and fatty acid compositions were carried out. P. antarcticum showed a pronounced ontogenic lipid accumulation with increasing size. Larvae displayed a dominance of polar lipids (83% of total lipids) and low percentage of triglycerides (7%). Conversely juveniles showed an increasing accumulation of triglycerides (up to 72.4%). The fatty acid composition of polar lipids remained rather stable between stages with 22:6n-3 and 20:5n-3 as dominant contributors. The relatively minor ontogenic changes, e. g. increase of mono-unsaturated and decrease of C18 polyunsaturated fatty acids, may reflect the influence of differences in diet. Triglycerides showed that all three age classes are well segregated in term of fatty acid composition. Larvae triglycerides are characterized by significant percentages of 16:0, 20:5n-3, 20:6n-3 and to a minor extent 18:4n-3, which suggest a prymnesiophyte based diet. Juveniles are characterized by larger percentages of C20:1 and C22:1 acids, considered as markers of Calanus type copepods. The increasing contribution of 18:1n-9 in the triglycerides of the older juveniles suggests a gradual and increasing shift from a copepod dominant diet to an euphausiid dominant diet. Fatty acid trophic markers pattern suggests a shift from a phytophagous and omnivorous diet for larvae to a carnivorous diet for juveniles. |
format |
Text |
author |
Mayzaud, Patrick Chevallier, J. Tavernier, E. Moteki, M. Koubbi, Philippe |
author_facet |
Mayzaud, Patrick Chevallier, J. Tavernier, E. Moteki, M. Koubbi, Philippe |
author_sort |
Mayzaud, Patrick |
title |
Lipid composition of the Antarctic fish Pleuragramma antarcticum. Influence of age class |
title_short |
Lipid composition of the Antarctic fish Pleuragramma antarcticum. Influence of age class |
title_full |
Lipid composition of the Antarctic fish Pleuragramma antarcticum. Influence of age class |
title_fullStr |
Lipid composition of the Antarctic fish Pleuragramma antarcticum. Influence of age class |
title_full_unstemmed |
Lipid composition of the Antarctic fish Pleuragramma antarcticum. Influence of age class |
title_sort |
lipid composition of the antarctic fish pleuragramma antarcticum. influence of age class |
publisher |
Elsevier Science Bv |
url |
https://doi.org/10.1016/j.polar.2010.12.003 https://archimer.ifremer.fr/doc/00230/34127/32607.pdf https://archimer.ifremer.fr/doc/00230/34127/ |
long_lat |
ENVELOPE(140.000,140.000,-65.000,-65.000) ENVELOPE(140.017,140.017,-66.667,-66.667) ENVELOPE(140.013,140.013,-66.667,-66.667) |
geographic |
Antarctic D'Urville Sea Dumont d'Urville Dumont-d'Urville East Antarctica The Antarctic |
geographic_facet |
Antarctic D'Urville Sea Dumont d'Urville Dumont-d'Urville East Antarctica The Antarctic |
genre |
Antarc* Antarctic Antarctica D'Urville Sea Dumont D'Urville Sea East Antarctica Polar Science Polar Science Copepods |
genre_facet |
Antarc* Antarctic Antarctica D'Urville Sea Dumont D'Urville Sea East Antarctica Polar Science Polar Science Copepods |
op_source |
Archimer, archive institutionnelle de l'Ifremer Polar Science (1873-9652) (Elsevier Science Bv), 2011-08 , Vol. 5 , N. 2 , P. 264-271 |
op_relation |
doi:10.1016/j.polar.2010.12.003 10670/1.sqorhr https://archimer.ifremer.fr/doc/00230/34127/32607.pdf https://archimer.ifremer.fr/doc/00230/34127/ |
op_rights |
other |
op_doi |
https://doi.org/10.1016/j.polar.2010.12.003 |
container_title |
Polar Science |
container_volume |
5 |
container_issue |
2 |
container_start_page |
264 |
op_container_end_page |
271 |
_version_ |
1766195254853107712 |