Elemental composition, biochemical composition and caloric value of Antarctic krill. Implications in Energetics and carbon balances
Samples of Antarctic krill were analyzed for elemental composition, biochemical composition, weight and caloric content. Sexes and maturity stages were separated. Mature females showed the highest caloric values (joules) and juveniles the lowest in a per animal basis. On unit of wet weight per anima...
Published in: | Journal of Marine Systems |
---|---|
Main Authors: | , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2009
|
Subjects: | |
Online Access: | https://hal.science/hal-03504999 https://doi.org/10.1016/j.jmarsys.2008.12.021 |
id |
ftinsu:oai:HAL:hal-03504999v1 |
---|---|
record_format |
openpolar |
spelling |
ftinsu:oai:HAL:hal-03504999v1 2024-02-11T09:57:39+01:00 Elemental composition, biochemical composition and caloric value of Antarctic krill. Implications in Energetics and carbon balances Faerber-Lorda, Jaime Gaudy, Raymond Mayzaud, P. Laboratoire d'Océanographie Physique et Biogéochimique (LOPB) Université de la Méditerranée - Aix-Marseille 2-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 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) 2009 https://hal.science/hal-03504999 https://doi.org/10.1016/j.jmarsys.2008.12.021 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmarsys.2008.12.021 hal-03504999 https://hal.science/hal-03504999 doi:10.1016/j.jmarsys.2008.12.021 ISSN: 0924-7963 Journal of Marine Systems https://hal.science/hal-03504999 Journal of Marine Systems, 2009, 78 (4, SI), pp.518-524. ⟨10.1016/j.jmarsys.2008.12.021⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2009 ftinsu https://doi.org/10.1016/j.jmarsys.2008.12.021 2024-01-24T17:30:19Z Samples of Antarctic krill were analyzed for elemental composition, biochemical composition, weight and caloric content. Sexes and maturity stages were separated. Mature females showed the highest caloric values (joules) and juveniles the lowest in a per animal basis. On unit of wet weight per animal basis, spent females showed the lowest caloric values. For the caloric values by animal, a significant difference was found between males, mature females, spent females and juveniles, either on a per animal basis or in the basis of 1 g of wet weight, showing a real difference between the groups, regardless of their individual size. Significant differences were found for carbon, nitrogen and lipids, but not for proteins, analyzed in % of dry weight. Carbon was lowest for spent females and highest for mature females. On the contrary, nitrogen values were lowest for mature females and highest for males. Mature females had the highest lipid content and males the lowest. All variables were significantly correlated. For the linear regression analysis, the best correlation found was between joules and carbon, followed by carbon vs. dry weight and joules vs. dry weight. In an analysis with two independent variables, the best correlation was found for joules vs. lipids and dry weight, followed by joules vs. carbon and nitrogen, and joules vs. lipids and proteins. The results obtained were used to make an analysis of the energy and carbon fluxes through the food chain in the sampled area, showing higher energetic and carbon ``densities'' in frontal areas, the POM calorific values showed an opposite pattern than that of krill. (C) 2009 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Institut national des sciences de l'Univers: HAL-INSU Antarctic Journal of Marine Systems 78 4 518 524 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
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 Faerber-Lorda, Jaime Gaudy, Raymond Mayzaud, P. Elemental composition, biochemical composition and caloric value of Antarctic krill. Implications in Energetics and carbon balances |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
Samples of Antarctic krill were analyzed for elemental composition, biochemical composition, weight and caloric content. Sexes and maturity stages were separated. Mature females showed the highest caloric values (joules) and juveniles the lowest in a per animal basis. On unit of wet weight per animal basis, spent females showed the lowest caloric values. For the caloric values by animal, a significant difference was found between males, mature females, spent females and juveniles, either on a per animal basis or in the basis of 1 g of wet weight, showing a real difference between the groups, regardless of their individual size. Significant differences were found for carbon, nitrogen and lipids, but not for proteins, analyzed in % of dry weight. Carbon was lowest for spent females and highest for mature females. On the contrary, nitrogen values were lowest for mature females and highest for males. Mature females had the highest lipid content and males the lowest. All variables were significantly correlated. For the linear regression analysis, the best correlation found was between joules and carbon, followed by carbon vs. dry weight and joules vs. dry weight. In an analysis with two independent variables, the best correlation was found for joules vs. lipids and dry weight, followed by joules vs. carbon and nitrogen, and joules vs. lipids and proteins. The results obtained were used to make an analysis of the energy and carbon fluxes through the food chain in the sampled area, showing higher energetic and carbon ``densities'' in frontal areas, the POM calorific values showed an opposite pattern than that of krill. (C) 2009 Elsevier B.V. All rights reserved. |
author2 |
Laboratoire d'Océanographie Physique et Biogéochimique (LOPB) Université de la Méditerranée - Aix-Marseille 2-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 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) |
format |
Article in Journal/Newspaper |
author |
Faerber-Lorda, Jaime Gaudy, Raymond Mayzaud, P. |
author_facet |
Faerber-Lorda, Jaime Gaudy, Raymond Mayzaud, P. |
author_sort |
Faerber-Lorda, Jaime |
title |
Elemental composition, biochemical composition and caloric value of Antarctic krill. Implications in Energetics and carbon balances |
title_short |
Elemental composition, biochemical composition and caloric value of Antarctic krill. Implications in Energetics and carbon balances |
title_full |
Elemental composition, biochemical composition and caloric value of Antarctic krill. Implications in Energetics and carbon balances |
title_fullStr |
Elemental composition, biochemical composition and caloric value of Antarctic krill. Implications in Energetics and carbon balances |
title_full_unstemmed |
Elemental composition, biochemical composition and caloric value of Antarctic krill. Implications in Energetics and carbon balances |
title_sort |
elemental composition, biochemical composition and caloric value of antarctic krill. implications in energetics and carbon balances |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-03504999 https://doi.org/10.1016/j.jmarsys.2008.12.021 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Krill |
genre_facet |
Antarc* Antarctic Antarctic Krill |
op_source |
ISSN: 0924-7963 Journal of Marine Systems https://hal.science/hal-03504999 Journal of Marine Systems, 2009, 78 (4, SI), pp.518-524. ⟨10.1016/j.jmarsys.2008.12.021⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmarsys.2008.12.021 hal-03504999 https://hal.science/hal-03504999 doi:10.1016/j.jmarsys.2008.12.021 |
op_doi |
https://doi.org/10.1016/j.jmarsys.2008.12.021 |
container_title |
Journal of Marine Systems |
container_volume |
78 |
container_issue |
4 |
container_start_page |
518 |
op_container_end_page |
524 |
_version_ |
1790593197069565952 |