Reduced n-3 highly unsaturated fatty acids dietary content expected with global change reduces the metabolic capacity of the golden grey mullet

Autor: David Mazurais, Emmanuel Dubillot, Christel Lefrançois, David Akbar, Nathalie Imbert-Auvray, Marie Vagner, Hervé Le Delliou, Natascha Ouillon, José-Luis Zambonino-Infante
Přispěvatelé: LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs), Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS), Ecologie et biologie des interactions (EBI), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Brest (UBO)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Ecologie, Evolution, Symbiose (EES), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-Centre National de la Recherche Scientifique (CNRS), Nutrition, Aquaculture et Génomique (NUAGE), Institut National de la Recherche Agronomique (INRA)-Université Sciences et Technologies - Bordeaux 1-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), This work was supported by the Action Initiative of the University of La Rochelle to Marie Vagner (postdoctoral fellowship). The authors are very grateful to Andrea Satta and Fabio Antagnarelli for supplying fish, to Michel Prineau for his technical help and to David Akbar and Marie Durollet for their help with cellular analysis and microscopy., LIttoral ENvironnement et Sociétés (LIENSs), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Plasma Osmolality
[SDE.MCG]Environmental Sciences/Global Changes
[SDV]Life Sciences [q-bio]
Swimming Performance
Forage
Aquatic Science
Biology
n-3 HUFA
Animal science
Critical Swimming Speed
anaerobic capacity
Calcium flux
[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology
Dry matter
aerobic scope
14. Life underwater
Growth rate
U crit
active metabolic rate
Ecology
Evolution
Behavior and Systematics
Aerobic capacity
ComputingMilieux_MISCELLANEOUS
Liza Aurata
cardiomyocyte performances
Ecology
ACL
[SDV.BA]Life Sciences [q-bio]/Animal biology
standard metabolic rate
biology.organism_classification
Plasma osmolality
Biochemistry
[SDE]Environmental Sciences
[SDV.EE.BIO]Life Sciences [q-bio]/Ecology
environment/Bioclimatology
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Digestion
Golden grey mullet
[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Zdroj: Marine Biology
Marine Biology, Springer Verlag, 2014, 161 (11), pp.2547-2562. ⟨10.1007/s00227-014-2526-3⟩
Marine Biology, 2014, 161 (11), pp.2547-2562. ⟨10.1007/s00227-014-2526-3⟩
Marine Biology (0025-3162) (Springer), 2014-11, Vol. 161, N. 11, P. 2547-2562
ISSN: 0025-3162
1432-1793
Popis: International audience; In this study, we hypothesised that a reduction in n-3 HUFA availability for higher consumers, as expected with global change, would negatively impact the physiological performances of fish. The aim was to experimentally evaluate the effect of n-3 HUFA dietary content on cardio-respiratory performances of the golden grey mullet (Liza aurata), a microalgae grazer of high ecological importance in European coastal areas. These performances were evaluated in terms of critical swimming speed U crit, associated oxygen consumption MO2, post-exercise oxygen consumption and calcium fluxes in cardiomyocytes. Two replicated groups of fish were fed on a rich (standard diet, SD diet: 1.2 % n-3 HUFA on dry matter basis, DMB) or a poor n-3 HUFA (low n-3 HUFA diet, LD diet: 0.2 % n-3 HUFA on DMB) diet during 5 months and were called SD and LD groups, respectively. The results showed that the LD diet reduced growth rate as well as the aerobic capacity of L. aurata at 20 °C, suggesting that fish may have to save energy by modifying the proportion of energy allocated to energy-demanding activities, such as digestion or feeding. In addition, this LD diet induced higher levels of haematocrit and plasma osmolality, indicating a stress response at the second and third levels in that group. However, the LD diet caused a massive increase in swimming efficiency. This should improve the capacity of L. aurata to migrate and to forage over a wide area. In turn, these could then compensate for the reduction in growth rate and aerobic metabolism.
Databáze: OpenAIRE
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