Lipid dynamics and trophic patterns in Pleuragramma antarctica life stages
International audience The aim of this study was to clarify the trophic patterns of the key species Pleuragramma antarctica in the Dumont d'Urville Sea, through its development and possible changes according to sampling locations. Variability in diet composition of larvae, juvenile and adult P....
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ftsorbonneuniv:oai:HAL:hal-03502723v1 2024-10-06T13:43:43+00:00 Lipid dynamics and trophic patterns in Pleuragramma antarctica life stages Giraldo, Carolina Mayzaud, Patrick Tavernier, Eric Boutoute, Marc Penot, Florian Koubbi, Philippe Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) Université du Littoral Côte d'Opale (ULCO) Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) 2015 https://hal.science/hal-03502723 https://doi.org/10.1017/S0954102015000036 en eng HAL CCSD Cambridge University Press (CUP) info:eu-repo/semantics/altIdentifier/doi/10.1017/S0954102015000036 hal-03502723 https://hal.science/hal-03502723 doi:10.1017/S0954102015000036 ISSN: 0954-1020 EISSN: 1365-2079 Antarctic Science https://hal.science/hal-03502723 Antarctic Science, 2015, 27 (5), pp.429-438. ⟨10.1017/S0954102015000036⟩ fatty acids feeding patterns ontogenetic changes [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2015 ftsorbonneuniv https://doi.org/10.1017/S0954102015000036 2024-09-06T00:03:57Z International audience The aim of this study was to clarify the trophic patterns of the key species Pleuragramma antarctica in the Dumont d'Urville Sea, through its development and possible changes according to sampling locations. Variability in diet composition of larvae, juvenile and adult P. antarctica was analysed using fatty acid markers. Analysis of lipid class in P. antarctica reflected lipid accumulation with increasing size at all sampling stations. The fatty acid composition of triacylglycerol highlighted ontogenetic changes in the diet. Phytoplankton markers, such as C16PUFA:C16 and EPA:DHA ratios >1, and carnivorous markers in larvae suggested an omnivorous diet. Comparison between the fatty acid signature of P. antarctica older stages (juveniles and adults) and zooplankton species using OPLS-discriminant analysis indicated that juveniles fed mainly on euphausiid larvae and to a minor extent on copepods, and confirmed that non-herbivorous copepods were the main prey for adults. Our results suggest that different feeding patterns and a generalist strategy in P. antarctica with juveniles feeding on bigger prey than adults, probably as a result of prey availability according to their vertical segregation pattern. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica D'Urville Sea Dumont D'Urville Sea Copepods HAL Sorbonne Université 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) Antarctic Science 27 5 429 438 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
fatty acids feeding patterns ontogenetic changes [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
fatty acids feeding patterns ontogenetic changes [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Giraldo, Carolina Mayzaud, Patrick Tavernier, Eric Boutoute, Marc Penot, Florian Koubbi, Philippe Lipid dynamics and trophic patterns in Pleuragramma antarctica life stages |
topic_facet |
fatty acids feeding patterns ontogenetic changes [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience The aim of this study was to clarify the trophic patterns of the key species Pleuragramma antarctica in the Dumont d'Urville Sea, through its development and possible changes according to sampling locations. Variability in diet composition of larvae, juvenile and adult P. antarctica was analysed using fatty acid markers. Analysis of lipid class in P. antarctica reflected lipid accumulation with increasing size at all sampling stations. The fatty acid composition of triacylglycerol highlighted ontogenetic changes in the diet. Phytoplankton markers, such as C16PUFA:C16 and EPA:DHA ratios >1, and carnivorous markers in larvae suggested an omnivorous diet. Comparison between the fatty acid signature of P. antarctica older stages (juveniles and adults) and zooplankton species using OPLS-discriminant analysis indicated that juveniles fed mainly on euphausiid larvae and to a minor extent on copepods, and confirmed that non-herbivorous copepods were the main prey for adults. Our results suggest that different feeding patterns and a generalist strategy in P. antarctica with juveniles feeding on bigger prey than adults, probably as a result of prey availability according to their vertical segregation pattern. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) Université du Littoral Côte d'Opale (ULCO) Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) |
format |
Article in Journal/Newspaper |
author |
Giraldo, Carolina Mayzaud, Patrick Tavernier, Eric Boutoute, Marc Penot, Florian Koubbi, Philippe |
author_facet |
Giraldo, Carolina Mayzaud, Patrick Tavernier, Eric Boutoute, Marc Penot, Florian Koubbi, Philippe |
author_sort |
Giraldo, Carolina |
title |
Lipid dynamics and trophic patterns in Pleuragramma antarctica life stages |
title_short |
Lipid dynamics and trophic patterns in Pleuragramma antarctica life stages |
title_full |
Lipid dynamics and trophic patterns in Pleuragramma antarctica life stages |
title_fullStr |
Lipid dynamics and trophic patterns in Pleuragramma antarctica life stages |
title_full_unstemmed |
Lipid dynamics and trophic patterns in Pleuragramma antarctica life stages |
title_sort |
lipid dynamics and trophic patterns in pleuragramma antarctica life stages |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-03502723 https://doi.org/10.1017/S0954102015000036 |
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 |
D'Urville Sea Dumont d'Urville Dumont-d'Urville |
geographic_facet |
D'Urville Sea Dumont d'Urville Dumont-d'Urville |
genre |
Antarc* Antarctic Science Antarctica D'Urville Sea Dumont D'Urville Sea Copepods |
genre_facet |
Antarc* Antarctic Science Antarctica D'Urville Sea Dumont D'Urville Sea Copepods |
op_source |
ISSN: 0954-1020 EISSN: 1365-2079 Antarctic Science https://hal.science/hal-03502723 Antarctic Science, 2015, 27 (5), pp.429-438. ⟨10.1017/S0954102015000036⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/S0954102015000036 hal-03502723 https://hal.science/hal-03502723 doi:10.1017/S0954102015000036 |
op_doi |
https://doi.org/10.1017/S0954102015000036 |
container_title |
Antarctic Science |
container_volume |
27 |
container_issue |
5 |
container_start_page |
429 |
op_container_end_page |
438 |
_version_ |
1812182252232114176 |