Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax
Although food deprivation is a major ecological pressure in fishes, there is wide individual variation in tolerance of fasting, whose mechanistic bases are poorly understood. Two thousand individually tagged juvenile European sea bass were submitted to two 'fasting/feeding' cycles each com...
Published in: | Journal of Experimental Biology |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2014
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Subjects: | |
Online Access: | https://hal.science/hal-01194097 https://hal.science/hal-01194097/document https://hal.science/hal-01194097/file/3283.pdf https://doi.org/10.1242/jeb.101857 |
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ftciradhal:oai:HAL:hal-01194097v1 |
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openpolar |
institution |
Open Polar |
collection |
CIRAD: HAL (Agricultural Research for Development) |
op_collection_id |
ftciradhal |
language |
English |
topic |
Ammonia excretion Ammonia quotient Energetic strategy Respirometry Routine metabolic rate Specific dynamic action NITROGENOUS WASTE EXCRETION RESPIRATORY GAS-EXCHANGE CATFISH SILURUS-MERIDIONALIS GASTROINTESTINAL BLOOD-FLOW TROUT ONCORHYNCHUS-MYKISS STANDARD METABOLIC-RATES SALMON SALMO-SALAR RAINBOW-TROUT OXYGEN-CONSUMPTION FUEL USAGE [SDV]Life Sciences [q-bio] |
spellingShingle |
Ammonia excretion Ammonia quotient Energetic strategy Respirometry Routine metabolic rate Specific dynamic action NITROGENOUS WASTE EXCRETION RESPIRATORY GAS-EXCHANGE CATFISH SILURUS-MERIDIONALIS GASTROINTESTINAL BLOOD-FLOW TROUT ONCORHYNCHUS-MYKISS STANDARD METABOLIC-RATES SALMON SALMO-SALAR RAINBOW-TROUT OXYGEN-CONSUMPTION FUEL USAGE [SDV]Life Sciences [q-bio] Mckenzie, David J. Vergnet, Alain Chatain, Beatrice Vandeputte, Marc Desmarais, Erick Steffensen, John F. Guinand, Bruno Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax |
topic_facet |
Ammonia excretion Ammonia quotient Energetic strategy Respirometry Routine metabolic rate Specific dynamic action NITROGENOUS WASTE EXCRETION RESPIRATORY GAS-EXCHANGE CATFISH SILURUS-MERIDIONALIS GASTROINTESTINAL BLOOD-FLOW TROUT ONCORHYNCHUS-MYKISS STANDARD METABOLIC-RATES SALMON SALMO-SALAR RAINBOW-TROUT OXYGEN-CONSUMPTION FUEL USAGE [SDV]Life Sciences [q-bio] |
description |
Although food deprivation is a major ecological pressure in fishes, there is wide individual variation in tolerance of fasting, whose mechanistic bases are poorly understood. Two thousand individually tagged juvenile European sea bass were submitted to two 'fasting/feeding' cycles each comprising 3 weeks of food deprivation followed by 3 weeks of ad libitum feeding at 25 degrees C. Rates of mass loss during the two fasting periods were averaged for each individual to calculate a population mean. Extreme fasting tolerant (FT) and sensitive (FS) phenotypes were identified that were at least one and a half standard deviations, on opposing sides, from this mean. Respirometry was used to investigate two main hypotheses: (1) tolerance of food deprivation reflects lower mass-corrected routine metabolic rate (RMR) in FT phenotypes when fasting, and (2) tolerance reflects differences in substrate utilisation; FT phenotypes use relatively less proteins as metabolic fuels during fasting, measured as their ammonia quotient (AQ), the simultaneous ratio of ammonia excretion to RMR. There was no difference in mean RMR between FT and FS over 7 days fasting, being 6.70 +/- 0.24 mmol h(-1) fish(-1) (mean +/- s.e.m., N=18) versus 6.76 +/- 0.22 mmol h(-1) fish(-1) (N=17), respectively, when corrected to a body mass of 130 g. For any given RMR, however, the FT lost mass at a significantly lower rate than FS, overall 7-day average being 0.72 +/- 0.05 versus 0.90 +/- 0.05 g day(-1) fish(-1), respectively (P<0.01, t-test). At 20 h after receiving a ration equivalent to 2% body mass as food pellets, ammonia excretion and simultaneous RMR were elevated and similar in FT and FS, with AQs of 0.105 +/- 0.009 and 0.089 +/- 0.007, respectively. At the end of the period of fasting, ammonia excretion and RMR had fallen in both phenotypes, but AQ was significantly lower in FT than FS, being 0.038 +/- 0.004 versus 0.061 +/- 0.005, respectively (P<0.001, t-test). There was a direct linear relationship between individual fasted AQ and rate of ... |
author2 |
Ecologie des systèmes marins côtiers (Ecosym) Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Aquaculture Languedoc-Roussillon (LALR) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Génétique Animale et Biologie Intégrative (GABI) Institut National de la Recherche Agronomique (INRA)-AgroParisTech Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Marine Biological Section Copenhagen Department of Biology Copenhagen Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH)-Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) |
format |
Article in Journal/Newspaper |
author |
Mckenzie, David J. Vergnet, Alain Chatain, Beatrice Vandeputte, Marc Desmarais, Erick Steffensen, John F. Guinand, Bruno |
author_facet |
Mckenzie, David J. Vergnet, Alain Chatain, Beatrice Vandeputte, Marc Desmarais, Erick Steffensen, John F. Guinand, Bruno |
author_sort |
Mckenzie, David J. |
title |
Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax |
title_short |
Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax |
title_full |
Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax |
title_fullStr |
Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax |
title_full_unstemmed |
Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax |
title_sort |
physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile european sea bass, dicentrarchus labrax |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-01194097 https://hal.science/hal-01194097/document https://hal.science/hal-01194097/file/3283.pdf https://doi.org/10.1242/jeb.101857 |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_source |
ISSN: 0022-0949 EISSN: 1477-9145 Journal of Experimental Biology https://hal.science/hal-01194097 Journal of Experimental Biology, 2014, 217 (18), pp.3283 - 3292. ⟨10.1242/jeb.101857⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1242/jeb.101857 hal-01194097 https://hal.science/hal-01194097 https://hal.science/hal-01194097/document https://hal.science/hal-01194097/file/3283.pdf doi:10.1242/jeb.101857 PRODINRA: 289980 WOS: 000342506100019 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1242/jeb.101857 |
container_title |
Journal of Experimental Biology |
container_volume |
217 |
container_issue |
18 |
container_start_page |
3283 |
op_container_end_page |
3292 |
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1799488456221523968 |
spelling |
ftciradhal:oai:HAL:hal-01194097v1 2024-05-19T07:47:58+00:00 Physiological mechanisms underlying individual variation in tolerance of food deprivation in juvenile European sea bass, Dicentrarchus labrax Mckenzie, David J. Vergnet, Alain Chatain, Beatrice Vandeputte, Marc Desmarais, Erick Steffensen, John F. Guinand, Bruno Ecologie des systèmes marins côtiers (Ecosym) Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Aquaculture Languedoc-Roussillon (LALR) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Génétique Animale et Biologie Intégrative (GABI) Institut National de la Recherche Agronomique (INRA)-AgroParisTech Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Marine Biological Section Copenhagen Department of Biology Copenhagen Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH)-Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) 2014 https://hal.science/hal-01194097 https://hal.science/hal-01194097/document https://hal.science/hal-01194097/file/3283.pdf https://doi.org/10.1242/jeb.101857 en eng HAL CCSD The Company of Biologists info:eu-repo/semantics/altIdentifier/doi/10.1242/jeb.101857 hal-01194097 https://hal.science/hal-01194097 https://hal.science/hal-01194097/document https://hal.science/hal-01194097/file/3283.pdf doi:10.1242/jeb.101857 PRODINRA: 289980 WOS: 000342506100019 info:eu-repo/semantics/OpenAccess ISSN: 0022-0949 EISSN: 1477-9145 Journal of Experimental Biology https://hal.science/hal-01194097 Journal of Experimental Biology, 2014, 217 (18), pp.3283 - 3292. ⟨10.1242/jeb.101857⟩ Ammonia excretion Ammonia quotient Energetic strategy Respirometry Routine metabolic rate Specific dynamic action NITROGENOUS WASTE EXCRETION RESPIRATORY GAS-EXCHANGE CATFISH SILURUS-MERIDIONALIS GASTROINTESTINAL BLOOD-FLOW TROUT ONCORHYNCHUS-MYKISS STANDARD METABOLIC-RATES SALMON SALMO-SALAR RAINBOW-TROUT OXYGEN-CONSUMPTION FUEL USAGE [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2014 ftciradhal https://doi.org/10.1242/jeb.101857 2024-05-02T00:15:43Z Although food deprivation is a major ecological pressure in fishes, there is wide individual variation in tolerance of fasting, whose mechanistic bases are poorly understood. Two thousand individually tagged juvenile European sea bass were submitted to two 'fasting/feeding' cycles each comprising 3 weeks of food deprivation followed by 3 weeks of ad libitum feeding at 25 degrees C. Rates of mass loss during the two fasting periods were averaged for each individual to calculate a population mean. Extreme fasting tolerant (FT) and sensitive (FS) phenotypes were identified that were at least one and a half standard deviations, on opposing sides, from this mean. Respirometry was used to investigate two main hypotheses: (1) tolerance of food deprivation reflects lower mass-corrected routine metabolic rate (RMR) in FT phenotypes when fasting, and (2) tolerance reflects differences in substrate utilisation; FT phenotypes use relatively less proteins as metabolic fuels during fasting, measured as their ammonia quotient (AQ), the simultaneous ratio of ammonia excretion to RMR. There was no difference in mean RMR between FT and FS over 7 days fasting, being 6.70 +/- 0.24 mmol h(-1) fish(-1) (mean +/- s.e.m., N=18) versus 6.76 +/- 0.22 mmol h(-1) fish(-1) (N=17), respectively, when corrected to a body mass of 130 g. For any given RMR, however, the FT lost mass at a significantly lower rate than FS, overall 7-day average being 0.72 +/- 0.05 versus 0.90 +/- 0.05 g day(-1) fish(-1), respectively (P<0.01, t-test). At 20 h after receiving a ration equivalent to 2% body mass as food pellets, ammonia excretion and simultaneous RMR were elevated and similar in FT and FS, with AQs of 0.105 +/- 0.009 and 0.089 +/- 0.007, respectively. At the end of the period of fasting, ammonia excretion and RMR had fallen in both phenotypes, but AQ was significantly lower in FT than FS, being 0.038 +/- 0.004 versus 0.061 +/- 0.005, respectively (P<0.001, t-test). There was a direct linear relationship between individual fasted AQ and rate of ... Article in Journal/Newspaper Salmo salar CIRAD: HAL (Agricultural Research for Development) Journal of Experimental Biology 217 18 3283 3292 |