Changes in lipid composition of the Antarctic krill Euphausia superba in the Indian sector of the Antarctic Ocean: influence of geographical location, sexual maturity stage and distribution among organs
Lipid content and lipid class composition of Euphausia superba were studied at different levels for populations and individuals sampled in the Indian sector of the Antarctic Ocean. Strong site-to-site variability was recorded which could only partially be related to sex or development stage differen...
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ftsorbonneuniv:oai:HAL:hal-03479821v1 2023-06-11T04:06:26+02:00 Changes in lipid composition of the Antarctic krill Euphausia superba in the Indian sector of the Antarctic Ocean: influence of geographical location, sexual maturity stage and distribution among organs Mayzaud, P Albessard, E Cuzin-Roudy, J Station Zoologique de Villefranche Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) 1998 https://hal.science/hal-03479821 https://doi.org/10.3354/meps173149 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps173149 hal-03479821 https://hal.science/hal-03479821 doi:10.3354/meps173149 ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-03479821 Marine Ecology Progress Series, 1998, 173, pp.149-162. ⟨10.3354/meps173149⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 1998 ftsorbonneuniv https://doi.org/10.3354/meps173149 2023-05-29T19:07:59Z Lipid content and lipid class composition of Euphausia superba were studied at different levels for populations and individuals sampled in the Indian sector of the Antarctic Ocean. Strong site-to-site variability was recorded which could only partially be related to sex or development stage differences. Three groups of stations could be differentiated. Northern stations were characterized by `high lipid-high triglyceride' content, western and eastern locations by `high lipid-high phosphatidyl choline' content and southern areas by `low lipid-high phosphatidyl ethanolamine/glycolipid' content. Such variability was likely related to advected populations having spent variable lengths of time in the area studied. Lipid content and class among organs were studied in 5 body fractions: abdomen, stomach, digestive gland, gonad and fat body. In absolute terms, the highest concentrations were observed in the ovaries of mature females and the abdomens of the other stages. In relative terms (% dry weight), the digestive gland displayed the highest level, except in mature females. Distribution varied with stages, with low triglyceride levels in abdomen tissues of most stages and in the fat body and stomach fractions of subadults. High triglyceride levels were recorded in the other fractions for post spawning females and males, as well as in the fat body fraction for mature females and in subadult gonads. A reverse pattern was observed for the relative content of phosphatidyl choline. Phosphatidyl ethanolamine showed maximum values in the abdomen and the gonad. Glycolipid percentages were maximum in the abdomen, suggesting a structural role. The roles of the different lipid classes are discussed with respect to the function of the organ. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Ocean Euphausia superba HAL Sorbonne Université Antarctic The Antarctic Indian Antarctic Ocean Marine Ecology Progress Series 173 149 162 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Mayzaud, P Albessard, E Cuzin-Roudy, J Changes in lipid composition of the Antarctic krill Euphausia superba in the Indian sector of the Antarctic Ocean: influence of geographical location, sexual maturity stage and distribution among organs |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
Lipid content and lipid class composition of Euphausia superba were studied at different levels for populations and individuals sampled in the Indian sector of the Antarctic Ocean. Strong site-to-site variability was recorded which could only partially be related to sex or development stage differences. Three groups of stations could be differentiated. Northern stations were characterized by `high lipid-high triglyceride' content, western and eastern locations by `high lipid-high phosphatidyl choline' content and southern areas by `low lipid-high phosphatidyl ethanolamine/glycolipid' content. Such variability was likely related to advected populations having spent variable lengths of time in the area studied. Lipid content and class among organs were studied in 5 body fractions: abdomen, stomach, digestive gland, gonad and fat body. In absolute terms, the highest concentrations were observed in the ovaries of mature females and the abdomens of the other stages. In relative terms (% dry weight), the digestive gland displayed the highest level, except in mature females. Distribution varied with stages, with low triglyceride levels in abdomen tissues of most stages and in the fat body and stomach fractions of subadults. High triglyceride levels were recorded in the other fractions for post spawning females and males, as well as in the fat body fraction for mature females and in subadult gonads. A reverse pattern was observed for the relative content of phosphatidyl choline. Phosphatidyl ethanolamine showed maximum values in the abdomen and the gonad. Glycolipid percentages were maximum in the abdomen, suggesting a structural role. The roles of the different lipid classes are discussed with respect to the function of the organ. |
author2 |
Station Zoologique de Villefranche Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Mayzaud, P Albessard, E Cuzin-Roudy, J |
author_facet |
Mayzaud, P Albessard, E Cuzin-Roudy, J |
author_sort |
Mayzaud, P |
title |
Changes in lipid composition of the Antarctic krill Euphausia superba in the Indian sector of the Antarctic Ocean: influence of geographical location, sexual maturity stage and distribution among organs |
title_short |
Changes in lipid composition of the Antarctic krill Euphausia superba in the Indian sector of the Antarctic Ocean: influence of geographical location, sexual maturity stage and distribution among organs |
title_full |
Changes in lipid composition of the Antarctic krill Euphausia superba in the Indian sector of the Antarctic Ocean: influence of geographical location, sexual maturity stage and distribution among organs |
title_fullStr |
Changes in lipid composition of the Antarctic krill Euphausia superba in the Indian sector of the Antarctic Ocean: influence of geographical location, sexual maturity stage and distribution among organs |
title_full_unstemmed |
Changes in lipid composition of the Antarctic krill Euphausia superba in the Indian sector of the Antarctic Ocean: influence of geographical location, sexual maturity stage and distribution among organs |
title_sort |
changes in lipid composition of the antarctic krill euphausia superba in the indian sector of the antarctic ocean: influence of geographical location, sexual maturity stage and distribution among organs |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.science/hal-03479821 https://doi.org/10.3354/meps173149 |
geographic |
Antarctic The Antarctic Indian Antarctic Ocean |
geographic_facet |
Antarctic The Antarctic Indian Antarctic Ocean |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Ocean Euphausia superba |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Ocean Euphausia superba |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-03479821 Marine Ecology Progress Series, 1998, 173, pp.149-162. ⟨10.3354/meps173149⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps173149 hal-03479821 https://hal.science/hal-03479821 doi:10.3354/meps173149 |
op_doi |
https://doi.org/10.3354/meps173149 |
container_title |
Marine Ecology Progress Series |
container_volume |
173 |
container_start_page |
149 |
op_container_end_page |
162 |
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1768378399735152640 |