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First published online August 17, 2006
Journal of Experimental Biology 209, 3429-3439 (2006)
Published by The Company of Biologists 2006
doi: 10.1242/jeb.02347
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Associations between tissue fatty acid composition and physiological traits of performance and metabolism in the seabass (Dicentrarchus labrax)

A. Chatelier1,*, D. J. McKenzie1, A. Prinet1, R. Galois1, J. Robin2, J. Zambonino2 and G. Claireaux1

1 CNRS-Ifremer UMR 10, Centre de Recherche sur les Écosystèmes Marins et Aquacoles, Place du Séminaire, BP 5, 17137 L'Houmeau, France
2 Unité mixte Nutrition, Aquaculture, Génomique Inra-Ifremer-Bordeaux 1, Laboratoire Adaptation Reproduction Nutrition des Poissons, Ifremer, Centre de Brest, BP 70, 29280 Plouzané, France


Figure 1
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  		Fig. 1. Effects of diet on critical swimming speed (Ucrit) in the three groups of seabass fed diets where lipids were provided as either canola oil (CO, green column), palm oil (PO, red column) or fish oil (FO, blue column). Values are means ± s.e.m.; N=6 in all cases. A dissimilar letter indicates a significant difference (P<0.05) between the dietary treatments.

 

Figure 2
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  		Fig. 2. Effects of diet on routine cardiac output Q, maximum cardiac output Qmax, and the resultant increase in cardiac output during exercise Qroutine, in the three groups of seabass fed diets where lipids were provided as either canola oil (CO, green column), palm oil (PO, red column) or fish oil (FO, blue column). Values are means ± s.e.m.; N=6 in all cases. A dissimilar letter indicates a significant difference (P<0.05) between the dietary treatments.

 

Figure 3
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  		Fig. 3. Effects of diet on immobile metabolic rate, active metabolic rate, and aerobic scope, in the three groups of seabass fed diets where lipids were provided as either canola oil (CO, green column), palm oil (PO, red column) or fish oil (FO, blue column). Values are means ± s.e.m.; N=6 in all cases. A dissimilar letter indicates a significant difference (P<0.05) between the dietary treatments. MR, metabolic rate.

 

Figure 4
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  		Fig. 4. Projections of individuals onto the plane of three main functions of a principal components analysis of individual data for ventricular muscle neutral fatty acids (FA), polar FA, and the measured traits of growth, metabolism and performance, in the three groups of seabass fed diets where lipids were provided as either canola oil (green symbols, N=5), palm oil (red symbols, N=5) or fish oil (blue symbols, N=6). (A) Projections for the first and second axes, which describe 36% and 20% of the variation, respectively. (B) The same first axis plotted against the third, which describes 15% of the variation.

 




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