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A comparative study of the fatty acid profile of Artemia franciscana and A. persimilis cultured at mesocosm scale

AuthorsRuiz, Olga ; Amat, Francisco ; Navarro, Juan Carlos
KeywordsArtemia franciscana
Artemia persimilis
Fatty acids
Issue Date2008
CitationJournal of Experimental Marine Biology and Ecology 354(1): 9-16 (2008)
AbstractThe goal of this study was to examine the fatty acid (FA) profile of two Artemia species, A. persimilis (Argentina) and A. franciscana (Great Salt Lake,Utah; USA) in coexistence at mesocosm scale. The experiment was carried out to 1) evaluate putative differences in the fatty acid composition of both species while they share resources and 2) to investigate the causes of such differences. Although the coexistence of these species in nature has not yet been observed, it remains possible that this situation may arise in the future mainly due to the invasive ability of A. franciscana. FA analyses were performed on individuals as well as on pooled biomasses of each species, and integrated in multivariate principal components analysis (PCA). Comparison of the relative abundance of FA between the two species revealed that interspecific differences in FA composition are greater than intraspecific variability. Higher percentages of unsaturation were found in the fatty acids of A. persimilis compared to A. franciscana, demonstrating that aside from a high phenotypic effect of diet on the FA composition of the animals, a species-specific genotypic effect should not be discarded
Publisher version (URL)http://dx.doi.org/10.1016/j.jembe.2007.09.015
Appears in Collections:(IATS) Artículos
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