FN Archimer Export Format
PT J
TI Effect of thermal and nutritional conditions on fatty acid metabolism and oxidative stress response in juvenile European sea bass (Dicentrarchus labrax)
BT 
AF Gourtay, Clemence
   Chabot, Denis
   Audet, Céline
   Madec, Lauriane
   Huelvan, Christine
   Ducros, Loïck
   Claireaux, Guy
   Mazurais, David
   Zambonino-Infante, Jose-Luis
AS 1:1,2;2:3;3:1;4:2;5:2;6:2;7:4;8:2;9:2;
FF 1:;2:;3:;4:PDG-RBE-PFOM-LARN;5:PDG-RBE-PFOM-LARN;6:;7:;8:PDG-RBE-PFOM-LARN;9:PDG-RBE-PFOM-LARN;
C1 Institut Des Sciences de la mer de Rimouski, Université du Québec à Rimouski, 310 des Ursulines, Rimouski, QC, G5L 3A1, Canada
   IFREMER, Université Brest, CNRS, IRD, LEMAR (UMR6539), 29280, Plouzané, France
   Institut Maurice-Lamontagne, Pêches et Océans Canada, C.P. 1000, Mont-Joli, QC, G5H 3Z4, Canada
   IFREMER, Université Brest, CNRS, IRD, LEMAR (UMR6539), 29280, Plouzané, France
C2 UNIV QUEBEC (UQAR-ISMER), CANADA
   IFREMER, FRANCE
   MPO INST MAURICE LAMONTAGNE, CANADA
   UBO, FRANCE
SI BREST
SE PDG-RBE-PFOM-LARN
UM LEMAR
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 2.573
TC 1
UR https://archimer.ifremer.fr/doc/00646/75829/76835.pdf
LA English
DT Article
AB Coastal nursery areas are subjected to a wide range of natural and anthropogenic stressors, including global warming, which indirectly influence trophic food webs. A global rarefaction of n-3 polyunsaturated fatty acids (PUFA) in trophic networks is in progress. The aim of this study was to assess the effect of a reduction in the dietary availability of n-3 PUFA on some molecular and biochemical parameters related to lipid metabolism and oxidative stress response in juvenile European sea bass (Dicentrarchus labrax) raised at two temperatures (15 °C and 20 °C). Fish were fed for five months with a reference diet (RD; 1.65% n-3 PUFA on a dry matter basis, DM), used as a proxy of trophic networks where n-3 PUFA is plentiful, and a lower n-3 PUFA diet (LD; 0.73% n-3 PUFA DM), designed to mimic a decrease in n-3 PUFA resulting from global changes (the n-3 PUFA levels tested remained above the nutritional minimum required for this species). Results showed that diet did not affect the hepatic expression of some mRNA coding for transcriptional factors involved in regulating the metabolic pathways related to fatty acid bioconversion. Although our molecular analysis was limited to transcript expression, these data suggest the presence of a threshold in the nutritional supply of PUFA above which the activation of these molecular pathways does not occur. However, the expression for most of the transcripts tested was up-regulated at 20 °C. Despite the high peroxidation index in fish fed RD, very few modifications of the oxidative stress response were associated with diet. At 20 °C, an increase of the enzymatic antioxidant response was observed, but there was no correlation with the peroxidation index or malondialdehyde products. 
PY 2020
PD SEP
SO Marine Biology
SN 0025-3162
PU Springer Science and Business Media LLC
VL 167
IS 10
UT 000569774900004
DI 10.1007/s00227-020-03729-3
ID 75829
ER

EF